Merge pull request #81 from jorisa/master

Merge common files between LPC11XX and LPC11CXX
pull/82/head^2
Emilio Monti 2013-09-30 12:36:37 -07:00
commit e8afb9cd1d
14 changed files with 40 additions and 446 deletions

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LPC1114 Port
LPC1114/LPC11C24 Port
--------------
A port of the MBED SDK to the NXP LPC1114 by Yoshihiro Tsuboi, Toyomasa Watarai and Matthew Else.
Extra, LPC11C24-specific things added by Joris Aerts.

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/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBED_PERIPHERALNAMES_H
#define MBED_PERIPHERALNAMES_H
#include "cmsis.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
UART_0 = (int)LPC_UART_BASE
} UARTName;
typedef enum {
I2C_0 = (int)LPC_I2C_BASE
} I2CName;
typedef enum {
ADC0_0 = 0,
ADC0_1,
ADC0_2,
ADC0_3,
ADC0_4,
ADC0_5,
ADC0_6,
ADC0_7
} ADCName;
typedef enum {
SPI_0 = (int)LPC_SSP0_BASE,
SPI_1 = (int)LPC_SSP1_BASE
} SPIName;
typedef enum {
PWM_1 = 0,
PWM_2,
PWM_3,
PWM_4,
PWM_5,
PWM_6,
PWM_7,
PWM_8,
PWM_9,
PWM_10,
PWM_11
} PWMName;
#define STDIO_UART_TX USBTX
#define STDIO_UART_RX USBRX
#define STDIO_UART UART_0
#ifdef __cplusplus
}
#endif
#endif

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LPC11C24 Port
--------------
Based on a port of the MBED SDK to the NXP LPC1114 by Yoshihiro Tsuboi, Toyomasa Watarai and Matthew Else.
Extra, LPC11C24-specific things added by Joris Aerts.

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// ADC pin mappings for LPC11CXX
// This should be included ONLY from analogin_api.c
#ifndef ADC_PINMAP_H
#define ADC_PINMAP_H
static const PinMap PinMap_ADC[] = {
{P0_11, ADC0_0, 2},
{P1_0 , ADC0_1, 2},
{P1_1 , ADC0_2, 2},
{P1_2 , ADC0_3, 2},
{P1_3 , ADC0_4, 2},
{P1_4 , ADC0_5, 1},
{P1_10, ADC0_6, 1},
{P1_11, ADC0_7, 1},
{NC , NC , 0}
};
#endif

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/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "pwmout_api.h"
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
#define TCR_CNT_EN 0x00000001
#define TCR_RESET 0x00000002
/* To have a PWM where we can change both the period and the duty cycle,
* we need an entire timer. With the following conventions:
* * MR3 is used for the PWM period
* * MR0, MR1, MR2 are used for the duty cycle
*/
static const PinMap PinMap_PWM[] = {
/* CT16B0 */
{P0_8 , PWM_1, 0x02}, /* MR0 */
{P0_9 , PWM_2, 0x02}, /* MR1 */
{P0_10, PWM_3, 0x03}, /* MR2 */
/* CT16B1 */
{P1_9 , PWM_4, 0x01}, /* MR0 */
{P1_10, PWM_5, 0x02}, /* MR1 */
/* CT32B0 */
{P1_6 , PWM_6, 0x02}, /* MR0 */
{P1_7 , PWM_7, 0x02}, /* MR1 */
{P0_1 , PWM_8, 0x02}, /* MR2 */
/* CT32B1 */
{P1_1 , PWM_9 ,0x03}, /* MR0 */
{P1_2 , PWM_10,0x03}, /* MR1 */
{P1_3 , PWM_11,0x03}, /* MR2 */
{NC , NC ,0x00}
};
typedef struct {
uint8_t timer;
uint8_t mr;
} timer_mr;
static timer_mr pwm_timer_map[11] = {
{0, 0}, /* CT16B0, MR0 */
{0, 1}, /* CT16B0, MR1 */
{0, 2}, /* CT16B0, MR2 */
{1, 0}, /* CT16B1, MR0 */
{1, 1}, /* CT16B1, MR1 */
{2, 0}, /* CT32B0, MR0 */
{2, 1}, /* CT32B0, MR1 */
{2, 2}, /* CT32B0, MR2 */
{3, 0}, /* CT32B1, MR0 */
{3, 1}, /* CT32B1, MR1 */
{3, 2} /* CT32B1, MR2 */
};
static LPC_TMR_TypeDef *Timers[4] = {
LPC_TMR16B0, LPC_TMR16B1,
LPC_TMR32B0, LPC_TMR32B1
};
static unsigned int pwm_clock_mhz;
void pwmout_init(pwmout_t* obj, PinName pin) {
// determine the channel
PWMName pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
if (pwm == (uint32_t)NC)
error("PwmOut pin mapping failed");
obj->pwm = pwm;
// Timer registers
timer_mr tid = pwm_timer_map[pwm];
LPC_TMR_TypeDef *timer = Timers[tid.timer];
// Disable timer
timer->TCR = 0;
// Power the correspondent timer
LPC_SYSCON->SYSAHBCLKCTRL |= 1 << (tid.timer + 7);
/* Enable PWM function */
timer->PWMC = (1 << 3)|(1 << 2)|(1 << 1)|(1 << 0);
/* Reset Functionality on MR3 controlling the PWM period */
timer->MCR = 1 << 10;
pwm_clock_mhz = SystemCoreClock / 1000000;
// default to 20ms: standard for servos, and fine for e.g. brightness control
pwmout_period_ms(obj, 20);
pwmout_write (obj, 0);
// Wire pinout
pinmap_pinout(pin, PinMap_PWM);
}
void pwmout_free(pwmout_t* obj) {
// [TODO]
}
void pwmout_write(pwmout_t* obj, float value) {
if (value < 0.0f) {
value = 0.0;
} else if (value > 1.0f) {
value = 1.0;
}
timer_mr tid = pwm_timer_map[obj->pwm];
LPC_TMR_TypeDef *timer = Timers[tid.timer];
uint32_t t_off = timer->MR3 - (uint32_t)((float)(timer->MR3) * value);
timer->TCR = TCR_RESET;
timer->MR[tid.mr] = t_off;
timer->TCR = TCR_CNT_EN;
}
float pwmout_read(pwmout_t* obj) {
timer_mr tid = pwm_timer_map[obj->pwm];
LPC_TMR_TypeDef *timer = Timers[tid.timer];
float v = (float)(timer->MR3 - timer->MR[tid.mr]) / (float)(timer->MR3);
return (v > 1.0f) ? (1.0f) : (v);
}
void pwmout_period(pwmout_t* obj, float seconds) {
pwmout_period_us(obj, seconds * 1000000.0f);
}
void pwmout_period_ms(pwmout_t* obj, int ms) {
pwmout_period_us(obj, ms * 1000);
}
// Set the PWM period, keeping the duty cycle the same.
void pwmout_period_us(pwmout_t* obj, int us) {
int i = 0;
uint32_t period_ticks = pwm_clock_mhz * us;
timer_mr tid = pwm_timer_map[obj->pwm];
LPC_TMR_TypeDef *timer = Timers[tid.timer];
uint32_t old_period_ticks = timer->MR3;
timer->TCR = TCR_RESET;
timer->MR3 = period_ticks;
// Scale the pulse width to preserve the duty ratio
if (old_period_ticks > 0) {
for (i=0; i<3; i++) {
uint32_t t_off = period_ticks - (uint32_t)(((uint64_t)timer->MR[i] * (uint64_t)period_ticks) / (uint64_t)old_period_ticks);
timer->MR[i] = t_off;
}
}
timer->TCR = TCR_CNT_EN;
}
void pwmout_pulsewidth(pwmout_t* obj, float seconds) {
pwmout_pulsewidth_us(obj, seconds * 1000000.0f);
}
void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) {
pwmout_pulsewidth_us(obj, ms * 1000);
}
void pwmout_pulsewidth_us(pwmout_t* obj, int us) {
uint32_t t_on = (uint32_t)(((uint64_t)SystemCoreClock * (uint64_t)us) / (uint64_t)1000000);
timer_mr tid = pwm_timer_map[obj->pwm];
LPC_TMR_TypeDef *timer = Timers[tid.timer];
timer->TCR = TCR_RESET;
if (t_on > timer->MR3) {
pwmout_period_us(obj, us);
}
uint32_t t_off = timer->MR3 - t_on;
timer->MR[tid.mr] = t_off;
timer->TCR = TCR_CNT_EN;
}

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// SPI pin mappings for LPC11CXX
// This should be included ONLY from spi_api.c
#ifndef SPI_PINMAP_H
#define SPI_PINMAP_H
static const PinMap PinMap_SPI_SCLK[] = {
{P0_6 , SPI_0, 0x02},
{P0_10, SPI_0, 0x02},
{P2_11, SPI_0, 0x01},
{P2_1 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_MOSI[] = {
{P0_9 , SPI_0, 0x01},
{P2_3 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_MISO[] = {
{P0_8 , SPI_0, 0x01},
{P2_2 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_SSEL[] = {
{P0_2 , SPI_0, 0x01},
{P2_0 , SPI_1, 0x02},
{NC , NC , 0}
};
#endif

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// ADC pin mappings for LPC11XX
// This should be included ONLY from analogin_api.c
#ifndef ADC_PINMAP_H
#define ADC_PINMAP_H
static const PinMap PinMap_ADC[] = {
{P0_11, ADC0_0, 2},
{P1_0 , ADC0_1, 2},
{P1_1 , ADC0_2, 2},
{P1_2 , ADC0_3, 2},
// ADC0_4 (P1_3) should be mapped to SWDIO only
{P1_4 , ADC0_5, 1},
{P1_10, ADC0_6, 1},
{P1_11, ADC0_7, 1},
{NC , NC , 0}
};
#endif

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/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBED_OBJECTS_H
#define MBED_OBJECTS_H
#include "cmsis.h"
#include "PortNames.h"
#include "PeripheralNames.h"
#include "PinNames.h"
#ifdef __cplusplus
extern "C" {
#endif
struct gpio_irq_s {
uint32_t ch;
PinName pin;
__I uint32_t *reg_mask_read;
};
struct port_s {
__IO uint32_t *reg_dir;
__IO uint32_t *reg_data;
PortName port;
uint32_t mask;
};
struct pwmout_s {
PWMName pwm;
};
struct serial_s {
LPC_UART_TypeDef *uart;
int index;
};
struct analogin_s {
ADCName adc;
};
struct i2c_s {
LPC_I2C_TypeDef *i2c;
};
struct spi_s {
LPC_SSP_TypeDef *spi;
};
#include "gpio_object.h"
#ifdef __cplusplus
}
#endif
#endif

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// SPI pin mappings for LPC11XX
// This should be included ONLY from spi_api.c
#ifndef SPI_PINMAP_H
#define SPI_PINMAP_H
static const PinMap PinMap_SPI_SCLK[] = {
{P0_6 , SPI_0, 0x02},
{P2_11, SPI_0, 0x01},
{P2_1 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_MOSI[] = {
{P0_9 , SPI_0, 0x01},
{P2_3 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_MISO[] = {
{P0_8 , SPI_0, 0x01},
{P2_2 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_SSEL[] = {
{P0_2 , SPI_0, 0x01},
{P2_0 , SPI_1, 0x02},
{NC , NC , 0}
};
#endif

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#include "pinmap.h"
#include "error.h"
#include "adc_pinmap.h"
static const PinMap PinMap_ADC[] = {
{P0_11, ADC0_0, 2},
{P1_0 , ADC0_1, 2},
{P1_1 , ADC0_2, 2},
{P1_2 , ADC0_3, 2},
// {P1_3 , ADC0_4, 2}, -- should be mapped to SWDIO only
{P1_4 , ADC0_5, 1},
{P1_10, ADC0_6, 1},
{P1_11, ADC0_7, 1},
{NC , NC , 0}
};
#define ANALOGIN_MEDIAN_FILTER 1

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@ -59,9 +59,11 @@ struct spi_s {
LPC_SSP_TypeDef *spi;
};
#if DEVICE_CAN
struct can_s {
int index;
};
#endif
#include "gpio_object.h"

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#include "pinmap.h"
#include "error.h"
#include "spi_pinmap.h"
static const PinMap PinMap_SPI_SCLK[] = {
{P0_6 , SPI_0, 0x02},
// {P0_10, SPI_0, 0x02}, -- should be mapped to SWCLK only
{P2_11, SPI_0, 0x01},
{P2_1 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_MOSI[] = {
{P0_9 , SPI_0, 0x01},
{P2_3 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_MISO[] = {
{P0_8 , SPI_0, 0x01},
{P2_2 , SPI_1, 0x02},
{NC , NC , 0}
};
static const PinMap PinMap_SPI_SSEL[] = {
{P0_2 , SPI_0, 0x01},
{P2_0 , SPI_1, 0x02},
{NC , NC , 0}
};
static inline int ssp_disable(spi_t *obj);
static inline int ssp_enable(spi_t *obj);