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[NUCLEO_L152RE] Add LSE configuration for RTC and... 

... remove trailing spaces, typo corrections
pull/281/head
bcostm 2014-04-29 10:12:59 +02:00
parent af534d61c0
commit 7af317dda2
18 changed files with 437 additions and 407 deletions
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2
libraries/mbed/targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/system_stm32l1xx.h
View File

@ -94,6 +94,8 @@ extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Cloc
extern void SystemInit(void);
extern void SystemCoreClockUpdate(void);
extern void SetSysClock(void);
/**
* @}
*/

2
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/PeripheralNames.h
View File

@ -45,7 +45,7 @@ typedef enum {
} DACName;
typedef enum {
UART_1 = (int)USART1_BASE,
UART_1 = (int)USART1_BASE,
UART_2 = (int)USART2_BASE,
UART_3 = (int)USART3_BASE,
UART_4 = (int)UART4_BASE,

170
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/analogin_api.c
View File

@ -26,13 +26,13 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "analogin_api.h"
#include "wait_api.h"
#if DEVICE_ANALOGIN
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
#include "wait_api.h"
static const PinMap PinMap_ADC[] = {
{PA_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN0
@ -63,12 +63,12 @@ int adc_inited = 0;
void analogin_init(analogin_t *obj, PinName pin) {
ADC_TypeDef *adc;
ADC_InitTypeDef ADC_InitStructure;
// Get the peripheral name from the pin and assign it to the object
obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC);
if (obj->adc == (ADCName)NC) {
error("ADC pin mapping failed");
error("ADC pin mapping failed");
}
// Configure GPIO
@ -83,10 +83,10 @@ void analogin_init(analogin_t *obj, PinName pin) {
// Get ADC registers structure address
adc = (ADC_TypeDef *)(obj->adc);
// Enable ADC clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
// Configure ADC
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
@ -103,92 +103,92 @@ void analogin_init(analogin_t *obj, PinName pin) {
}
static inline uint16_t adc_read(analogin_t *obj) {
// Get ADC registers structure address
ADC_TypeDef *adc = (ADC_TypeDef *)(obj->adc);
uint8_t channel = 0;
// Configure ADC channel
switch (obj->pin) {
case PA_0:
channel = ADC_Channel_0;
break;
case PA_1:
channel = ADC_Channel_1;
break;
case PA_2:
channel = ADC_Channel_2;
break;
case PA_3:
channel = ADC_Channel_3;
break;
case PA_4:
channel = ADC_Channel_4;
break;
case PA_5:
channel = ADC_Channel_5;
break;
case PA_6:
channel = ADC_Channel_6;
break;
case PA_7:
channel = ADC_Channel_7;
break;
case PB_0:
channel = ADC_Channel_8;
break;
case PB_1:
channel = ADC_Channel_9;
break;
case PB_12:
channel = ADC_Channel_18;
break;
case PB_13:
channel = ADC_Channel_19;
break;
case PB_14:
channel = ADC_Channel_20;
break;
case PB_15:
channel = ADC_Channel_21;
break;
case PC_0:
channel = ADC_Channel_10;
break;
case PC_1:
channel = ADC_Channel_11;
break;
case PC_2:
channel = ADC_Channel_12;
break;
case PC_3:
channel = ADC_Channel_13;
break;
case PC_4:
channel = ADC_Channel_14;
break;
case PC_5:
channel = ADC_Channel_15;
break;
default:
return 0;
}
// Get ADC registers structure address
ADC_TypeDef *adc = (ADC_TypeDef *)(obj->adc);
uint8_t channel = 0;
ADC_RegularChannelConfig(adc, channel, 1, ADC_SampleTime_4Cycles);
ADC_SoftwareStartConv(adc); // Start conversion
while(ADC_GetFlagStatus(adc, ADC_FLAG_EOC) == RESET); // Wait end of conversion
return(ADC_GetConversionValue(adc)); // Get conversion value
// Configure ADC channel
switch (obj->pin) {
case PA_0:
channel = ADC_Channel_0;
break;
case PA_1:
channel = ADC_Channel_1;
break;
case PA_2:
channel = ADC_Channel_2;
break;
case PA_3:
channel = ADC_Channel_3;
break;
case PA_4:
channel = ADC_Channel_4;
break;
case PA_5:
channel = ADC_Channel_5;
break;
case PA_6:
channel = ADC_Channel_6;
break;
case PA_7:
channel = ADC_Channel_7;
break;
case PB_0:
channel = ADC_Channel_8;
break;
case PB_1:
channel = ADC_Channel_9;
break;
case PB_12:
channel = ADC_Channel_18;
break;
case PB_13:
channel = ADC_Channel_19;
break;
case PB_14:
channel = ADC_Channel_20;
break;
case PB_15:
channel = ADC_Channel_21;
break;
case PC_0:
channel = ADC_Channel_10;
break;
case PC_1:
channel = ADC_Channel_11;
break;
case PC_2:
channel = ADC_Channel_12;
break;
case PC_3:
channel = ADC_Channel_13;
break;
case PC_4:
channel = ADC_Channel_14;
break;
case PC_5:
channel = ADC_Channel_15;
break;
default:
return 0;
}
ADC_RegularChannelConfig(adc, channel, 1, ADC_SampleTime_4Cycles);
ADC_SoftwareStartConv(adc); // Start conversion
while (ADC_GetFlagStatus(adc, ADC_FLAG_EOC) == RESET); // Wait end of conversion
return (ADC_GetConversionValue(adc)); // Get conversion value
}
uint16_t analogin_read_u16(analogin_t *obj) {
return(adc_read(obj));
return (adc_read(obj));
}
float analogin_read(analogin_t *obj) {
uint16_t value = adc_read(obj);
return (float)value * (1.0f / (float)0xFFF); // 12 bits range
uint16_t value = adc_read(obj);
return (float)value * (1.0f / (float)0xFFF); // 12 bits range
}
#endif

13
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/analogout_api.c
View File

@ -43,7 +43,7 @@ static const PinMap PinMap_DAC[] = {
void analogout_init(dac_t *obj, PinName pin) {
DAC_InitTypeDef DAC_InitStructure;
// Get the peripheral name (DAC_1, ...) from the pin and assign it to the object
obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC);
@ -65,7 +65,7 @@ void analogout_init(dac_t *obj, PinName pin) {
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Disable;
if (obj->channel == PA_4) {
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
DAC_Cmd(DAC_Channel_1, ENABLE);
@ -74,7 +74,7 @@ void analogout_init(dac_t *obj, PinName pin) {
DAC_Init(DAC_Channel_2, &DAC_InitStructure);
DAC_Cmd(DAC_Channel_2, ENABLE);
}
analogout_write_u16(obj, 0);
}
@ -112,10 +112,9 @@ void analogout_write(dac_t *obj, float value) {
void analogout_write_u16(dac_t *obj, uint16_t value) {
if (value > (uint16_t)RANGE_12BIT) {
dac_write(obj, (uint16_t)RANGE_12BIT); // Max value
}
else {
dac_write(obj, value);
dac_write(obj, (uint16_t)RANGE_12BIT); // Max value
} else {
dac_write(obj, value);
}
}

9
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/gpio_api.c
View File

@ -33,7 +33,7 @@
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
uint32_t gpio_set(PinName pin) {
uint32_t gpio_set(PinName pin) {
if (pin == NC) return 0;
pin_function(pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
@ -45,11 +45,11 @@ void gpio_init(gpio_t *obj, PinName pin) {
if (pin == NC) return;
uint32_t port_index = STM_PORT(pin);
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Fill GPIO object structure for future use
obj->pin = pin;
obj->mask = gpio_set(pin);
@ -65,8 +65,7 @@ void gpio_mode(gpio_t *obj, PinMode mode) {
void gpio_dir(gpio_t *obj, PinDirection direction) {
if (direction == PIN_OUTPUT) {
pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
}
else { // PIN_INPUT
} else { // PIN_INPUT
pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
}
}

74
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/gpio_irq_api.c
View File

@ -29,7 +29,6 @@
*/
#include <stddef.h>
#include "cmsis.h"
#include "gpio_irq_api.h"
#include "pinmap.h"
#include "error.h"
@ -53,30 +52,42 @@ static void handle_interrupt_in(uint32_t irq_index) {
uint32_t pin = (uint32_t)(1 << channel_pin[irq_index]);
// Clear interrupt flag
if (EXTI_GetITStatus(pin) != RESET)
{
if (EXTI_GetITStatus(pin) != RESET) {
EXTI_ClearITPendingBit(pin);
}
if (channel_ids[irq_index] == 0) return;
// Check which edge has generated the irq
if ((gpio->IDR & pin) == 0) {
irq_handler(channel_ids[irq_index], IRQ_FALL);
}
else {
} else {
irq_handler(channel_ids[irq_index], IRQ_RISE);
}
}
// The irq_index is passed to the function
static void gpio_irq0(void) {handle_interrupt_in(0);} // EXTI line 0
static void gpio_irq1(void) {handle_interrupt_in(1);} // EXTI line 1
static void gpio_irq2(void) {handle_interrupt_in(2);} // EXTI line 2
static void gpio_irq3(void) {handle_interrupt_in(3);} // EXTI line 3
static void gpio_irq4(void) {handle_interrupt_in(4);} // EXTI line 4
static void gpio_irq5(void) {handle_interrupt_in(5);} // EXTI lines 5 to 9
static void gpio_irq6(void) {handle_interrupt_in(6);} // EXTI lines 10 to 15
static void gpio_irq0(void) {
handle_interrupt_in(0); // EXTI line 0
}
static void gpio_irq1(void) {
handle_interrupt_in(1); // EXTI line 1
}
static void gpio_irq2(void) {
handle_interrupt_in(2); // EXTI line 2
}
static void gpio_irq3(void) {
handle_interrupt_in(3); // EXTI line 3
}
static void gpio_irq4(void) {
handle_interrupt_in(4); // EXTI line 4
}
static void gpio_irq5(void) {
handle_interrupt_in(5); // EXTI lines 5 to 9
}
static void gpio_irq6(void) {
handle_interrupt_in(6); // EXTI lines 10 to 15
}
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
@ -146,18 +157,18 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
// Enable SYSCFG clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
// Connect EXTI line to pin
SYSCFG_EXTILineConfig(port_index, pin_index);
// Configure EXTI line
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_InitStructure.EXTI_Line = (uint32_t)(1 << pin_index);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
// Enable and set EXTI interrupt to the lowest priority
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = irq_n;
@ -165,7 +176,7 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_SetVector(irq_n, vector);
NVIC_EnableIRQ(irq_n);
@ -176,9 +187,9 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
channel_ids[irq_index] = id;
channel_gpio[irq_index] = gpio_add;
channel_pin[irq_index] = pin_index;
irq_handler = handler;
irq_handler = handler;
return 0;
}
@ -189,47 +200,44 @@ void gpio_irq_free(gpio_irq_t *obj) {
// Disable EXTI line
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
EXTI_Init(&EXTI_InitStructure);
EXTI_Init(&EXTI_InitStructure);
obj->event = EDGE_NONE;
}
void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) {
EXTI_InitTypeDef EXTI_InitStructure;
uint32_t pin_index = channel_pin[obj->irq_index];
EXTI_InitStructure.EXTI_Line = (uint32_t)(1 << pin_index);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
if (event == IRQ_RISE) {
if ((obj->event == EDGE_FALL) || (obj->event == EDGE_BOTH)) {
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
obj->event = EDGE_BOTH;
}
else { // NONE or RISE
} else { // NONE or RISE
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
obj->event = EDGE_RISE;
}
}
if (event == IRQ_FALL) {
if ((obj->event == EDGE_RISE) || (obj->event == EDGE_BOTH)) {
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
obj->event = EDGE_BOTH;
}
else { // NONE or FALL
} else { // NONE or FALL
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
obj->event = EDGE_FALL;
}
}
if (enable) {
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
}
else {
} else {
EXTI_InitStructure.EXTI_LineCmd = DISABLE;
}
EXTI_Init(&EXTI_InitStructure);
}

3
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/gpio_object.h
View File

@ -50,8 +50,7 @@ typedef struct {
static inline void gpio_write(gpio_t *obj, int value) {
if (value) {
*obj->reg_set = obj->mask;
}
else {
} else {
*obj->reg_clr = obj->mask;
}
}

73
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/i2c_api.c
View File

@ -36,8 +36,8 @@
#include "error.h"
/* Timeout values for flags and events waiting loops. These timeouts are
not based on accurate values, they just guarantee that the application will
not remain stuck if the I2C communication is corrupted. */
not based on accurate values, they just guarantee that the application will
not remain stuck if the I2C communication is corrupted. */
#define FLAG_TIMEOUT ((int)0x1000)
#define LONG_TIMEOUT ((int)0x8000)
@ -55,19 +55,19 @@ static const PinMap PinMap_I2C_SCL[] = {
{NC, NC, 0}
};
void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
// Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
if (obj->i2c == (I2CName)NC) {
error("I2C pin mapping failed");
}
// Enable I2C clock
if (obj->i2c == I2C_1) {
if (obj->i2c == I2C_1) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
}
if (obj->i2c == I2C_2) {
@ -79,12 +79,12 @@ void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
pin_mode(scl, OpenDrain);
pinmap_pinout(sda, PinMap_I2C_SDA);
pin_mode(sda, OpenDrain);
// Reset to clear pending flags if any
i2c_reset(obj);
// I2C configuration
i2c_frequency(obj, 100000); // 100 kHz per default
i2c_frequency(obj, 100000); // 100 kHz per default
}
void i2c_frequency(i2c_t *obj, int hz) {
@ -97,7 +97,7 @@ void i2c_frequency(i2c_t *obj, int hz) {
/* Warning: To use the I2C at 400 kHz (in fast mode), the PCLK1 frequency
(I2C peripheral input clock) must be a multiple of 10 MHz.
With the actual clock configuration, the max frequency is measured at 296 kHz */
// I2C configuration
I2C_DeInit(i2c);
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
@ -113,12 +113,12 @@ void i2c_frequency(i2c_t *obj, int hz) {
inline int i2c_start(i2c_t *obj) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int timeout;
I2C_ClearFlag(i2c, I2C_FLAG_AF); // Clear Acknowledge failure flag
// Generate the START condition
I2C_GenerateSTART(i2c, ENABLE);
I2C_GenerateSTART(i2c, ENABLE);
// Wait the START condition has been correctly sent
timeout = FLAG_TIMEOUT;
while (I2C_GetFlagStatus(i2c, I2C_FLAG_SB) == RESET) {
@ -127,7 +127,7 @@ inline int i2c_start(i2c_t *obj) {
return 1;
}
}
return 0;
}
@ -135,10 +135,10 @@ inline int i2c_stop(i2c_t *obj) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int timeout;
volatile int temp;
if (I2C_GetFlagStatus(i2c, I2C_FLAG_MSL) == RESET) {
timeout = LONG_TIMEOUT;
// wait for STOP
// wait for STOP
while (I2C_GetFlagStatus(i2c, I2C_FLAG_STOPF) == RESET) {
timeout--;
if (timeout == 0) {
@ -147,11 +147,10 @@ inline int i2c_stop(i2c_t *obj) {
}
temp = i2c->SR1;
I2C_Cmd(i2c, ENABLE);
}
else {
} else {
I2C_GenerateSTOP(i2c, ENABLE);
}
return 0;
}
@ -160,13 +159,13 @@ int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
int timeout;
int count;
int value;
if (length == 0) return 0;
i2c_start(obj);
// Send slave address for read
I2C_Send7bitAddress(i2c, address, I2C_Direction_Receiver);
I2C_Send7bitAddress(i2c, address, I2C_Direction_Receiver);
// Wait address is acknowledged
timeout = FLAG_TIMEOUT;
@ -176,13 +175,13 @@ int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
return 0;
}
}
// Read all bytes except last one
for (count = 0; count < (length - 1); count++) {
value = i2c_byte_read(obj, 0);
data[count] = (char)value;
}
// If not repeated start, send stop.
// Warning: must be done BEFORE the data is read.
if (stop) {
@ -192,7 +191,7 @@ int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
// Read the last byte
value = i2c_byte_read(obj, 1);
data[count] = (char)value;
return length;
}
@ -205,7 +204,7 @@ int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
// Send slave address for write
I2C_Send7bitAddress(i2c, address, I2C_Direction_Transmitter);
// Wait address is acknowledged
timeout = FLAG_TIMEOUT;
while (I2C_CheckEvent(i2c, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED) == ERROR) {
@ -234,7 +233,7 @@ int i2c_byte_read(i2c_t *obj, int last) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint8_t data;
int timeout;
if (last) {
// Don't acknowledge the last byte
I2C_AcknowledgeConfig(i2c, DISABLE);
@ -253,7 +252,7 @@ int i2c_byte_read(i2c_t *obj, int last) {
}
data = I2C_ReceiveData(i2c);
return (int)data;
}
@ -266,24 +265,24 @@ int i2c_byte_write(i2c_t *obj, int data) {
// Wait until the byte is transmitted
timeout = FLAG_TIMEOUT;
while ((I2C_GetFlagStatus(i2c, I2C_FLAG_TXE) == RESET) &&
(I2C_GetFlagStatus(i2c, I2C_FLAG_BTF) == RESET)) {
(I2C_GetFlagStatus(i2c, I2C_FLAG_BTF) == RESET)) {
timeout--;
if (timeout == 0) {
return 0;
}
}
return 1;
}
void i2c_reset(i2c_t *obj) {
if (obj->i2c == I2C_1) {
if (obj->i2c == I2C_1) {
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, DISABLE);
}
if (obj->i2c == I2C_2) {
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, DISABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, DISABLE);
}
}
@ -292,7 +291,7 @@ void i2c_reset(i2c_t *obj) {
void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint16_t tmpreg;
// Get the old register value
tmpreg = i2c->OAR1;
// Reset address bits
@ -314,28 +313,28 @@ void i2c_slave_mode(i2c_t *obj, int enable_slave) {
#define WriteAddressed 3 // the master is writing to this slave (slave = receiver)
int i2c_slave_receive(i2c_t *obj) {
return(0);
return (0);
}
int i2c_slave_read(i2c_t *obj, char *data, int length) {
int count = 0;
// Read all bytes
for (count = 0; count < length; count++) {
data[count] = i2c_byte_read(obj, 0);
}
return count;
}
int i2c_slave_write(i2c_t *obj, const char *data, int length) {
int count = 0;
// Write all bytes
for (count = 0; count < length; count++) {
i2c_byte_write(obj, data[count]);
}
return count;
}

3
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/mbed_overrides.c
View File

@ -25,8 +25,7 @@
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
extern void SystemCoreClockUpdate(void);
#include "cmsis.h"
// This function is called after RAM initialization and before main.
void mbed_sdk_init() {

4
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/objects.h
View File

@ -48,7 +48,7 @@ struct gpio_irq_s {
struct port_s {
PortName port;
uint32_t mask;
PinDirection direction;
PinDirection direction;
__IO uint16_t *reg_in;
__IO uint16_t *reg_out;
};
@ -69,7 +69,7 @@ struct serial_s {
uint32_t baudrate;
uint32_t databits;
uint32_t stopbits;
uint32_t parity;
uint32_t parity;
};
struct spi_s {

8
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pinmap.c
View File

@ -86,7 +86,7 @@ void pin_function(PinName pin, int data) {
if (afnum != 0xFF) {
GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
}
// Configure GPIO
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
@ -95,7 +95,7 @@ void pin_function(PinName pin, int data) {
GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
GPIO_Init(gpio, &GPIO_InitStructure);
// [TODO] Disconnect JTAG-DP + SW-DP signals.
// Warning: Need to reconnect under reset
//if ((pin == PA_13) || (pin == PA_14)) {
@ -103,7 +103,7 @@ void pin_function(PinName pin, int data) {
//}
//if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
//
//}
//}
}
/**
@ -124,5 +124,5 @@ void pin_mode(PinName pin, PinMode mode) {
if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
}

21
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/port_api.c
View File

@ -28,18 +28,19 @@
*******************************************************************************
*/
#include "port_api.h"
#if DEVICE_PORTIN || DEVICE_PORTOUT
#include "pinmap.h"
#include "gpio_api.h"
#include "error.h"
#if DEVICE_PORTIN || DEVICE_PORTOUT
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
// high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
// low nibble = pin number
PinName port_pin(PortName port, int pin_n) {
return (PinName)(pin_n + (port << 4));
return (PinName)(pin_n + (port << 4));
}
void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
@ -52,9 +53,9 @@ void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
// Fill PORT object structure for future use
obj->port = port;
obj->mask = mask;
obj->direction = dir;
obj->direction = dir;
obj->reg_in = &gpio->IDR;
obj->reg_out = &gpio->ODR;
obj->reg_out = &gpio->ODR;
port_dir(obj, dir);
}
@ -66,16 +67,15 @@ void port_dir(port_t *obj, PinDirection dir) {
if (obj->mask & (1 << i)) { // If the pin is used
if (dir == PIN_OUTPUT) {
pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
}
else { // PIN_INPUT
} else { // PIN_INPUT
pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
}
}
}
}
}
void port_mode(port_t *obj, PinMode mode) {
uint32_t i;
uint32_t i;
for (i = 0; i < 16; i++) { // Process all pins
if (obj->mask & (1 << i)) { // If the pin is used
pin_mode(port_pin(obj->port, i), mode);
@ -90,8 +90,7 @@ void port_write(port_t *obj, int value) {
int port_read(port_t *obj) {
if (obj->direction == PIN_OUTPUT) {
return (*obj->reg_out & obj->mask);
}
else { // PIN_INPUT
} else { // PIN_INPUT
return (*obj->reg_in & obj->mask);
}
}

70
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pwmout_api.c
View File

@ -29,25 +29,27 @@
*/
#include "pwmout_api.h"
#if DEVICE_PWMOUT
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
// TIM5 cannot be used because already used by the us_ticker
static const PinMap PinMap_PWM[] = {
//{PA_0, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1
// {PA_0, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1
{PA_1, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH2
//{PA_1, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1
// {PA_1, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1
{PA_2, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH3
//{PA_2, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH3
//{PA_2, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH1
// {PA_2, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH3
// {PA_2, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH1
{PA_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH4
//{PA_3, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH4
//{PA_3, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH2
// {PA_3, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH4
// {PA_3, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH2
{PA_6, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1
//{PA_6, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
// {PA_6, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
{PA_7, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2
//{PA_7, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
// {PA_7, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
{PB_0, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH3
{PB_1, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH4
{PB_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH2
@ -56,30 +58,30 @@ static const PinMap PinMap_PWM[] = {
{PB_6, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH1
{PB_7, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH2
{PB_8, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH3
//{PB_8, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
// {PB_8, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
{PB_9, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH4
//{PB_9, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
// {PB_9, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
{PB_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH3
{PB_11, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH4
{PB_12, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
{PB_13, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH1
{PB_14, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH2
{PB_15, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
{PB_15, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
{PC_6, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1
{PC_7, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2
{PC_8, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH3
{PC_9, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH4
{PC_9, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH4
{NC, NC, 0}
};
void pwmout_init(pwmout_t* obj, PinName pin) {
void pwmout_init(pwmout_t* obj, PinName pin) {
// Get the peripheral name from the pin and assign it to the object
obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
if (obj->pwm == (PWMName)NC) {
error("PWM pinout mapping failed");
}
// Enable TIM clock
if (obj->pwm == PWM_2) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
if (obj->pwm == PWM_3) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
@ -88,14 +90,14 @@ void pwmout_init(pwmout_t* obj, PinName pin) {
if (obj->pwm == PWM_9) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM9, ENABLE);
if (obj->pwm == PWM_10) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM10, ENABLE);
if (obj->pwm == PWM_11) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM11, ENABLE);
// Configure GPIO
pinmap_pinout(pin, PinMap_PWM);
obj->pin = pin;
obj->period = 0;
obj->pulse = 0;
pwmout_period_us(obj, 20000); // 20 ms per default
}
@ -113,9 +115,9 @@ void pwmout_write(pwmout_t* obj, float value) {
} else if (value > 1.0) {
value = 1.0;
}
obj->pulse = (uint32_t)((float)obj->period * value);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = obj->pulse;
@ -124,15 +126,15 @@ void pwmout_write(pwmout_t* obj, float value) {
// Configure the channels
switch (obj->pin) {
// Channels 1
//case PA_0:
//case PA_1:
//case PA_2:
//case PA_0:
//case PA_1:
//case PA_2:
case PA_6:
//case PA_7:
//case PA_7:
case PB_4:
case PB_6:
//case PB_8:
//case PB_9:
//case PB_8:
//case PB_9:
case PB_12:
case PB_13:
case PB_15:
@ -142,7 +144,7 @@ void pwmout_write(pwmout_t* obj, float value) {
break;
// Channels 2
case PA_1:
//case PA_3:
//case PA_3:
case PA_7:
case PB_3:
case PB_5:
@ -169,7 +171,7 @@ void pwmout_write(pwmout_t* obj, float value) {
case PC_9:
TIM_OC4PreloadConfig(tim, TIM_OCPreload_Enable);
TIM_OC4Init(tim, &TIM_OCInitStructure);
break;
break;
default:
return;
}
@ -196,10 +198,10 @@ void pwmout_period_us(pwmout_t* obj, int us) {
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
float dc = pwmout_read(obj);
TIM_Cmd(tim, DISABLE);
TIM_Cmd(tim, DISABLE);
obj->period = us;
TIM_TimeBaseStructure.TIM_Period = obj->period - 1;
TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
@ -208,8 +210,8 @@ void pwmout_period_us(pwmout_t* obj, int us) {
// Set duty cycle again
pwmout_write(obj, dc);
TIM_ARRPreloadConfig(tim, ENABLE);
TIM_ARRPreloadConfig(tim, ENABLE);
TIM_Cmd(tim, ENABLE);
}
@ -225,3 +227,5 @@ void pwmout_pulsewidth_us(pwmout_t* obj, int us) {
float value = (float)us / (float)obj->period;
pwmout_write(obj, value);
}
#endif

85
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/rtc_api.c
View File

@ -29,36 +29,63 @@
*/
#include "rtc_api.h"
#if DEVICE_RTC
#include "wait_api.h"
#define LSE_STARTUP_TIMEOUT ((uint16_t)400) // delay in ms
static int rtc_inited = 0;
void rtc_init(void) {
uint32_t StartUpCounter = 0;
uint32_t LSEStatus = 0;
uint32_t rtc_freq = 0;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); // Enable PWR clock
PWR_RTCAccessCmd(ENABLE); // Enable access to RTC
PWR_RTCAccessCmd(ENABLE); // Enable access to Backup domain
// Note: the LSI is used as RTC source clock
// The RTC Clock may vary due to LSI frequency dispersion.
RCC_LSICmd(ENABLE); // Enable LSI
while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET) {} // Wait until ready
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI); // Select LSI as RTC Clock Source
RCC_RTCCLKCmd(ENABLE); // Enable RTC Clock
RTC_WaitForSynchro(); // Wait for RTC registers synchronization
// Reset RTC and Backup registers
RCC_RTCResetCmd(ENABLE);
RCC_RTCResetCmd(DISABLE);
uint32_t lsi_freq = 40000; // [TODO] To be measured precisely using a timer input capture
// Enable LSE clock
RCC_LSEConfig(RCC_LSE_ON);
// Wait till LSE is ready
do {
LSEStatus = RCC_GetFlagStatus(RCC_FLAG_LSERDY);
wait_ms(1);
StartUpCounter++;
} while ((LSEStatus == 0) && (StartUpCounter <= LSE_STARTUP_TIMEOUT));
if (StartUpCounter > LSE_STARTUP_TIMEOUT) {
// The LSE has not started, use LSI instead.
// The RTC Clock may vary due to LSI frequency dispersion.
RCC_LSEConfig(RCC_LSE_OFF);
RCC_LSICmd(ENABLE); // Enable LSI
while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET) {} // Wait until ready
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI); // Select the RTC Clock Source
rtc_freq = 40000; // [TODO] To be measured precisely using a timer input capture
} else {
// The LSE has correctly started
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE); // Select the RTC Clock Source
rtc_freq = LSE_VALUE;
}
RTC_InitTypeDef RTC_InitStructure;
RTC_InitStructure.RTC_AsynchPrediv = 127;
RTC_InitStructure.RTC_SynchPrediv = (lsi_freq / 128) - 1;
RTC_InitStructure.RTC_SynchPrediv = (rtc_freq / 128) - 1;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_Init(&RTC_InitStructure);
PWR_RTCAccessCmd(DISABLE); // Disable access to RTC
RCC_RTCCLKCmd(ENABLE); // Enable RTC Clock
RTC_WaitForSynchro(); // Wait for RTC registers synchronization
PWR_RTCAccessCmd(DISABLE); // Disable access to Backup domain
rtc_inited = 1;
}
@ -92,11 +119,11 @@ time_t rtc_read(void) {
RTC_DateTypeDef dateStruct;
RTC_TimeTypeDef timeStruct;
struct tm timeinfo;
// Read actual date and time
RTC_GetTime(RTC_Format_BIN, &timeStruct);
RTC_GetDate(RTC_Format_BIN, &dateStruct);
// Setup a tm structure based on the RTC
timeinfo.tm_wday = dateStruct.RTC_WeekDay;
timeinfo.tm_mon = dateStruct.RTC_Month - 1;
@ -105,11 +132,11 @@ time_t rtc_read(void) {
timeinfo.tm_hour = timeStruct.RTC_Hours;
timeinfo.tm_min = timeStruct.RTC_Minutes;
timeinfo.tm_sec = timeStruct.RTC_Seconds;
// Convert to timestamp
time_t t = mktime(&timeinfo);
return t;
return t;
}
void rtc_write(time_t t) {
@ -118,7 +145,7 @@ void rtc_write(time_t t) {
// Convert the time into a tm
struct tm *timeinfo = localtime(&t);
// Fill RTC structures
dateStruct.RTC_WeekDay = timeinfo->tm_wday;
dateStruct.RTC_Month = timeinfo->tm_mon + 1;
@ -128,10 +155,12 @@ void rtc_write(time_t t) {
timeStruct.RTC_Minutes = timeinfo->tm_min;
timeStruct.RTC_Seconds = timeinfo->tm_sec;
timeStruct.RTC_H12 = RTC_HourFormat_24;
// Change the RTC current date/time
PWR_RTCAccessCmd(ENABLE); // Enable access to RTC
PWR_RTCAccessCmd(ENABLE); // Enable access to Backup domain
RTC_SetDate(RTC_Format_BIN, &dateStruct);
RTC_SetTime(RTC_Format_BIN, &timeStruct);
PWR_RTCAccessCmd(DISABLE); // Disable access to RTC
RTC_SetTime(RTC_Format_BIN, &timeStruct);
PWR_RTCAccessCmd(DISABLE); // Disable access to Backup domain
}
#endif

133
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/serial_api.c
View File

@ -28,6 +28,9 @@
*******************************************************************************
*/
#include "serial_api.h"
#if DEVICE_SERIAL
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
@ -38,7 +41,7 @@ static const PinMap PinMap_UART_TX[] = {
{PA_9, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
{PB_6, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
{PB_10, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
//{PC_10, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
// {PC_10, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
{PC_10, UART_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART4)},
{PC_12, UART_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART5)},
{NC, NC, 0}
@ -49,7 +52,7 @@ static const PinMap PinMap_UART_RX[] = {
{PA_10, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
{PB_7, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
{PB_11, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
//{PC_11, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
// {PC_11, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
{PC_11, UART_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART4)},
{PD_2, UART_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART5)},
{NC, NC, 0}
@ -67,7 +70,7 @@ serial_t stdio_uart;
static void init_usart(serial_t *obj) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
USART_InitTypeDef USART_InitStructure;
USART_Cmd(usart, DISABLE);
USART_InitStructure.USART_BaudRate = obj->baudrate;
@ -77,15 +80,15 @@ static void init_usart(serial_t *obj) {
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(usart, &USART_InitStructure);
USART_Cmd(usart, ENABLE);
}
void serial_init(serial_t *obj, PinName tx, PinName rx) {
void serial_init(serial_t *obj, PinName tx, PinName rx) {
// Determine the UART to use (UART_1, UART_2, ...)
UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
// Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
@ -95,19 +98,19 @@ void serial_init(serial_t *obj, PinName tx, PinName rx) {
// Enable USART clock
if (obj->uart == UART_1) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
}
if (obj->uart == UART_2) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
}
if (obj->uart == UART_3) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
}
if (obj->uart == UART_4) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);
}
if (obj->uart == UART_5) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5, ENABLE);
}
// Configure the UART pins
@ -120,7 +123,7 @@ void serial_init(serial_t *obj, PinName tx, PinName rx) {
obj->baudrate = 9600;
obj->databits = USART_WordLength_8b;
obj->stopbits = USART_StopBits_1;
obj->parity = USART_Parity_No;
obj->parity = USART_Parity_No;
init_usart(obj);
@ -130,12 +133,12 @@ void serial_init(serial_t *obj, PinName tx, PinName rx) {
if (obj->uart == UART_3) obj->index = 2;
if (obj->uart == UART_4) obj->index = 3;
if (obj->uart == UART_5) obj->index = 4;
// For stdio management
if (obj->uart == STDIO_UART) {
stdio_uart_inited = 1;
memcpy(&stdio_uart, obj, sizeof(serial_t));
}
}
}
void serial_free(serial_t *obj) {
@ -150,29 +153,27 @@ void serial_baud(serial_t *obj, int baudrate) {
void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
if (data_bits == 8) {
obj->databits = USART_WordLength_8b;
}
else {
} else {
obj->databits = USART_WordLength_9b;
}
switch (parity) {
case ParityOdd:
case ParityForced0:
obj->parity = USART_Parity_Odd;
break;
case ParityEven:
case ParityForced1:
obj->parity = USART_Parity_Even;
break;
default: // ParityNone
obj->parity = USART_Parity_No;
break;
case ParityOdd:
case ParityForced0:
obj->parity = USART_Parity_Odd;
break;
case ParityEven:
case ParityForced1:
obj->parity = USART_Parity_Even;
break;
default: // ParityNone
obj->parity = USART_Parity_No;
break;
}
if (stop_bits == 2) {
obj->stopbits = USART_StopBits_2;
}
else {
} else {
obj->stopbits = USART_StopBits_1;
}
@ -197,11 +198,21 @@ static void uart_irq(USART_TypeDef* usart, int id) {
}
}
static void uart1_irq(void) {uart_irq((USART_TypeDef*)UART_1, 0);}
static void uart2_irq(void) {uart_irq((USART_TypeDef*)UART_2, 1);}
static void uart3_irq(void) {uart_irq((USART_TypeDef*)UART_3, 2);}
static void uart4_irq(void) {uart_irq((USART_TypeDef*)UART_4, 3);}
static void uart5_irq(void) {uart_irq((USART_TypeDef*)UART_5, 4);}
static void uart1_irq(void) {
uart_irq((USART_TypeDef*)UART_1, 0);
}
static void uart2_irq(void) {
uart_irq((USART_TypeDef*)UART_2, 1);
}
static void uart3_irq(void) {
uart_irq((USART_TypeDef*)UART_3, 2);
}
static void uart4_irq(void) {
uart_irq((USART_TypeDef*)UART_4, 3);
}
static void uart5_irq(void) {
uart_irq((USART_TypeDef*)UART_5, 4);
}
void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
irq_handler = handler;
@ -214,60 +225,58 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
if (obj->uart == UART_1) {
irq_n = USART1_IRQn;
vector = (uint32_t)&uart1_irq;
irq_n = USART1_IRQn;
vector = (uint32_t)&uart1_irq;
}
if (obj->uart == UART_2) {
irq_n = USART2_IRQn;
vector = (uint32_t)&uart2_irq;
irq_n = USART2_IRQn;
vector = (uint32_t)&uart2_irq;
}
if (obj->uart == UART_3) {
irq_n = USART3_IRQn;
vector = (uint32_t)&uart3_irq;
irq_n = USART3_IRQn;
vector = (uint32_t)&uart3_irq;
}
if (obj->uart == UART_4) {
irq_n = UART4_IRQn;
vector = (uint32_t)&uart4_irq;
irq_n = UART4_IRQn;
vector = (uint32_t)&uart4_irq;
}
if (obj->uart == UART_5) {
irq_n = UART5_IRQn;
vector = (uint32_t)&uart5_irq;
irq_n = UART5_IRQn;
vector = (uint32_t)&uart5_irq;
}
if (enable) {
if (irq == RxIrq) {
USART_ITConfig(usart, USART_IT_RXNE, ENABLE);
}
else { // TxIrq
} else { // TxIrq
USART_ITConfig(usart, USART_IT_TC, ENABLE);
}
}
NVIC_SetVector(irq_n, vector);
NVIC_EnableIRQ(irq_n);
} else { // disable
int all_disabled = 0;
if (irq == RxIrq) {
USART_ITConfig(usart, USART_IT_RXNE, DISABLE);
// Check if TxIrq is disabled too
if ((usart->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
}
else { // TxIrq
} else { // TxIrq
USART_ITConfig(usart, USART_IT_TXE, DISABLE);
// Check if RxIrq is disabled too
if ((usart->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
if ((usart->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
}
if (all_disabled) NVIC_DisableIRQ(irq_n);
}
}
}
/******************************************************************************
@ -319,3 +328,5 @@ void serial_break_set(serial_t *obj) {
void serial_break_clear(serial_t *obj) {
}
#endif

22
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/sleep.c
View File

@ -28,33 +28,33 @@
*******************************************************************************
*/
#include "sleep_api.h"
#if DEVICE_SLEEP
#include "cmsis.h"
// This function is in the system_stm32l1xx.c file
extern void SetSysClock(void);
// MCU SLEEP mode
void sleep(void)
{
void sleep(void) {
// Enable PWR clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
// Request to enter SLEEP mode with regulator ON
PWR_EnterSleepMode(PWR_Regulator_ON, PWR_SLEEPEntry_WFI);
}
// MCU STOP mode (Regulator in LP mode, LSI, HSI and HSE OFF)
void deepsleep(void)
{
void deepsleep(void) {
// Enable PWR clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
// Enable Ultra low power mode
PWR_UltraLowPowerCmd(ENABLE);
// Enter Stop Mode
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
// After wake-up from STOP reconfigure the PLL
SetSysClock();
}
#endif

142
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/spi_api.c
View File

@ -37,29 +37,29 @@
#include "error.h"
static const PinMap PinMap_SPI_MOSI[] = {
{PA_7, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PA_7, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PA_12, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PB_5, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
//{PB_5, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
// {PB_5, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{PB_15, SPI_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI2)},
{PC_12, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{NC, NC, 0}
};
static const PinMap PinMap_SPI_MISO[] = {
{PA_6, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PA_6, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PA_11, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PB_4, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
//{PB_4, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
// {PB_4, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{PB_14, SPI_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI2)},
{PC_11, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{NC, NC, 0}
};
static const PinMap PinMap_SPI_SCLK[] = {
{PA_5, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PA_5, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
{PB_3, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
//{PB_3, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
// {PB_3, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{PB_13, SPI_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI2)},
{PC_10, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{NC, NC, 0}
@ -67,9 +67,9 @@ static const PinMap PinMap_SPI_SCLK[] = {
static const PinMap PinMap_SPI_SSEL[] = {
{PA_4, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
//{PA_4, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
// {PA_4, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{PA_15, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI1)},
//{PA_15, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
// {PA_15, SPI_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI3)},
{PB_12, SPI_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_SPI2)},
{NC, NC, 0}
};
@ -81,11 +81,11 @@ static void init_spi(spi_t *obj) {
SPI_Cmd(spi, DISABLE);
SPI_InitStructure.SPI_Mode = obj->mode;
SPI_InitStructure.SPI_NSS = obj->nss;
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_NSS = obj->nss;
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = obj->bits;
SPI_InitStructure.SPI_CPOL = obj->cpol;
SPI_InitStructure.SPI_CPHA = obj->cpha;
SPI_InitStructure.SPI_CPHA = obj->cpha;
SPI_InitStructure.SPI_BaudRatePrescaler = obj->br_presc;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
@ -100,43 +100,42 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL);
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel);
obj->spi = (SPIName)pinmap_merge(spi_data, spi_cntl);
if (obj->spi == (SPIName)NC) {
error("SPI pinout mapping failed");
}
// Enable SPI clock
if (obj->spi == SPI_1) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
}
if (obj->spi == SPI_2) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
}
if (obj->spi == SPI_3) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE);
}
// Configure the SPI pins
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
// Save new values
obj->bits = SPI_DataSize_8b;
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_1Edge;
obj->br_presc = SPI_BaudRatePrescaler_256;
if (ssel == NC) { // Master
obj->mode = SPI_Mode_Master;
obj->nss = SPI_NSS_Soft;
}
else { // Slave
} else { // Slave
pinmap_pinout(ssel, PinMap_SPI_SSEL);
obj->mode = SPI_Mode_Slave;
obj->nss = SPI_NSS_Soft;
@ -150,43 +149,41 @@ void spi_free(spi_t *obj) {
SPI_I2S_DeInit(spi);
}
void spi_format(spi_t *obj, int bits, int mode, int slave) {
void spi_format(spi_t *obj, int bits, int mode, int slave) {
// Save new values
if (bits == 8) {
obj->bits = SPI_DataSize_8b;
}
else {
} else {
obj->bits = SPI_DataSize_16b;
}
switch (mode) {
case 0:
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_1Edge;
break;
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_1Edge;
break;
case 1:
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_2Edge;
break;
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_2Edge;
break;
case 2:
obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_1Edge;
break;
obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_1Edge;
break;
default:
obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_2Edge;
break;
obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_2Edge;
break;
}
if (slave == 0) {
obj->mode = SPI_Mode_Master;
obj->nss = SPI_NSS_Soft;
}
else {
} else {
obj->mode = SPI_Mode_Slave;
obj->nss = SPI_NSS_Hard;
obj->nss = SPI_NSS_Hard;
}
init_spi(obj);
}
@ -195,54 +192,39 @@ void spi_frequency(spi_t *obj, int hz) {
if (SystemCoreClock == 32000000) { // HSI
if (hz < 250000) {
obj->br_presc = SPI_BaudRatePrescaler_256; // 125 kHz
}
else if ((hz >= 250000) && (hz < 500000)) {
} else if ((hz >= 250000) && (hz < 500000)) {
obj->br_presc = SPI_BaudRatePrescaler_128; // 250 kHz
}
else if ((hz >= 500000) && (hz < 1000000)) {
} else if ((hz >= 500000) && (hz < 1000000)) {
obj->br_presc = SPI_BaudRatePrescaler_64; // 500 kHz
}
else if ((hz >= 1000000) && (hz < 2000000)) {
} else if ((hz >= 1000000) && (hz < 2000000)) {
obj->br_presc = SPI_BaudRatePrescaler_32; // 1 MHz
}
else if ((hz >= 2000000) && (hz < 4000000)) {
} else if ((hz >= 2000000) && (hz < 4000000)) {
obj->br_presc = SPI_BaudRatePrescaler_16; // 2 MHz
}
else if ((hz >= 4000000) && (hz < 8000000)) {
} else if ((hz >= 4000000) && (hz < 8000000)) {
obj->br_presc = SPI_BaudRatePrescaler_8; // 4 MHz
}
else if ((hz >= 8000000) && (hz < 16000000)) {
} else if ((hz >= 8000000) && (hz < 16000000)) {
obj->br_presc = SPI_BaudRatePrescaler_4; // 8 MHz
}
else { // >= 16000000
} else { // >= 16000000
obj->br_presc = SPI_BaudRatePrescaler_2; // 16 MHz
}
}
else { // 24 MHz - HSE
} else { // 24 MHz - HSE
if (hz < 180000) {
obj->br_presc = SPI_BaudRatePrescaler_256; // 94 kHz
}
else if ((hz >= 180000) && (hz < 350000)) {
} else if ((hz >= 180000) && (hz < 350000)) {
obj->br_presc = SPI_BaudRatePrescaler_128; // 188 kHz
}
else if ((hz >= 350000) && (hz < 750000)) {
} else if ((hz >= 350000) && (hz < 750000)) {
obj->br_presc = SPI_BaudRatePrescaler_64; // 375 kHz
}
else if ((hz >= 750000) && (hz < 1000000)) {
} else if ((hz >= 750000) && (hz < 1000000)) {
obj->br_presc = SPI_BaudRatePrescaler_32; // 750 kHz
}
else if ((hz >= 1000000) && (hz < 3000000)) {
} else if ((hz >= 1000000) && (hz < 3000000)) {
obj->br_presc = SPI_BaudRatePrescaler_16; // 1.5 MHz
}
else if ((hz >= 3000000) && (hz < 6000000)) {
} else if ((hz >= 3000000) && (hz < 6000000)) {
obj->br_presc = SPI_BaudRatePrescaler_8; // 3 MHz
}
else if ((hz >= 6000000) && (hz < 12000000)) {
} else if ((hz >= 6000000) && (hz < 12000000)) {
obj->br_presc = SPI_BaudRatePrescaler_4; // 6 MHz
}
else { // >= 12000000
} else { // >= 12000000
obj->br_presc = SPI_BaudRatePrescaler_2; // 12 MHz
}
}
}
init_spi(obj);
}
@ -252,7 +234,7 @@ static inline int ssp_readable(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
// Check if data is received
status = ((SPI_I2S_GetFlagStatus(spi, SPI_I2S_FLAG_RXNE) != RESET) ? 1 : 0);
return status;
return status;
}
static inline int ssp_writeable(spi_t *obj) {
@ -264,13 +246,13 @@ static inline int ssp_writeable(spi_t *obj) {
}
static inline void ssp_write(spi_t *obj, int value) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj));
SPI_I2S_SendData(spi, (uint16_t)value);
}
static inline int ssp_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_readable(obj));
return (int)SPI_I2S_ReceiveData(spi);
}
@ -297,8 +279,8 @@ int spi_slave_read(spi_t *obj) {
}
void spi_slave_write(spi_t *obj, int value) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj));
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj));
SPI_I2S_SendData(spi, (uint16_t)value);
}

10
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/us_ticker.c
View File

@ -38,13 +38,13 @@ static int us_ticker_inited = 0;
void us_ticker_init(void) {
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
if (us_ticker_inited) return;
us_ticker_inited = 1;
// Enable timer clock
TIM_MST_RCC;
// Configure time base
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 0xFFFFFFFF;
@ -52,10 +52,10 @@ void us_ticker_init(void) {
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM_MST, &TIM_TimeBaseStructure);
NVIC_SetVector(TIM_MST_IRQ, (uint32_t)us_ticker_irq_handler);
NVIC_EnableIRQ(TIM_MST_IRQ);
// Enable timer
TIM_Cmd(TIM_MST, ENABLE);
}