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Change UART RTS/CTS to low level active

pull/3467/head
ccli8 2016-12-02 17:40:24 +08:00 committed by Anna Bridge
parent acafdf8304
commit 5510375dee
4 changed files with 28 additions and 16 deletions
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8
targets/TARGET_NUVOTON/TARGET_M451/serial_api.c
View File

@ -300,8 +300,8 @@ void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, Pi
MBED_ASSERT(uart_rts == obj->serial.uart);
// Enable the pin for RTS function
pinmap_pinout(rxflow, PinMap_UART_RTS);
// nRTS pin output is high level active
uart_base->MODEM = (uart_base->MODEM & ~UART_MODEM_RTSACTLV_Msk);
// nRTS pin output is low level active
uart_base->MODEM |= UART_MODEM_RTSACTLV_Msk;
uart_base->FIFO = (uart_base->FIFO & ~UART_FIFO_RTSTRGLV_Msk) | UART_FIFO_RTSTRGLV_8BYTES;
// Enable RTS
uart_base->INTEN |= UART_INTEN_ATORTSEN_Msk;
@ -313,8 +313,8 @@ void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, Pi
MBED_ASSERT(uart_cts == obj->serial.uart);
// Enable the pin for CTS function
pinmap_pinout(txflow, PinMap_UART_CTS);
// nCTS pin input is high level active
uart_base->MODEMSTS = (uart_base->MODEMSTS & ~UART_MODEMSTS_CTSACTLV_Msk);
// nCTS pin input is low level active
uart_base->MODEMSTS |= UART_MODEMSTS_CTSACTLV_Msk;
// Enable CTS
uart_base->INTEN |= UART_INTEN_ATOCTSEN_Msk;
}

20
targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_uart.c
View File

@ -1,8 +1,8 @@
/**************************************************************************//**
* @file uart.c
* @version V1.00
* $Revision: 13 $
* $Date: 14/10/03 1:55p $
* $Revision: 14 $
* $Date: 15/11/26 10:47a $
* @brief NUC472/NUC442 UART driver source file
*
* @note
@ -118,7 +118,7 @@ void UART_DisableInt(UART_T* uart, uint32_t u32InterruptFlag )
void UART_EnableFlowCtrl(UART_T* uart )
{
uart->MODEM |= UART_MODEM_RTSACTLV_Msk;
uart->MODEM &= UART_MODEM_RTS_Msk;
uart->MODEM &= ~UART_MODEM_RTS_Msk;
uart->MODEMSTS |= UART_MODEMSTS_CTSACTLV_Msk;
uart->INTEN |= UART_INTEN_ATORTSEN_Msk | UART_INTEN_ATOCTSEN_Msk;
}
@ -161,7 +161,7 @@ void UART_Open(UART_T* uart, uint32_t u32baudrate)
uint32_t u32Clk;
uint32_t u32Baud_Div;
u32ClkTbl[1] = CLK_GetPLLClockFreq();;
u32ClkTbl[1] = CLK_GetPLLClockFreq();
u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UARTSEL_Msk) >> CLK_CLKSEL1_UARTSEL_Pos;
@ -272,7 +272,17 @@ void UART_SetTimeoutCnt(UART_T* uart, uint32_t u32TOC)
*/
void UART_SelectIrDAMode(UART_T* uart, uint32_t u32Buadrate, uint32_t u32Direction)
{
uart->BAUD = UART_BAUD_MODE0 | UART_BAUD_MODE0_DIVIDER(12000000, 57600);
uint8_t u8UartClkSrcSel;
uint32_t u32ClkTbl[4] = {__HXT, 0, __HIRC, __HIRC};
uint32_t u32Clk;
u32ClkTbl[1] = CLK_GetPLLClockFreq();
u8UartClkSrcSel = (CLK->CLKSEL1 & CLK_CLKSEL1_UARTSEL_Msk) >> CLK_CLKSEL1_UARTSEL_Pos;
u32Clk = (u32ClkTbl[u8UartClkSrcSel]) / (((CLK->CLKDIV0 & CLK_CLKDIV0_UARTDIV_Msk) >> CLK_CLKDIV0_UARTDIV_Pos) + 1);
uart->BAUD = UART_BAUD_MODE0 | UART_BAUD_MODE0_DIVIDER(u32Clk, u32Buadrate);
uart->IRDA &= ~UART_IRDA_TXINV_Msk;
uart->IRDA |= UART_IRDA_RXINV_Msk;

6
targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_uart.h
View File

@ -1,8 +1,8 @@
/**************************************************************************//**
* @file uart.h
* @version V1.00
* $Revision: 19 $
* $Date: 14/10/07 9:28a $
* $Revision: 20 $
* $Date: 15/11/30 1:35p $
* @brief NUC472/NUC442 UART driver header file
*
* @note
@ -310,7 +310,7 @@ extern "C"
* - \ref UART_INTSTS_LINIF_Msk : LIN Bus Flag.
* - \ref UART_INTSTS_BUFERRIF_Msk : Buffer Error Interrupt Flag
* - \ref UART_INTSTS_RXTOIF_Msk : Rx time-out interrupt Flag
* - \ref UART_INTSTS_MODENIF_Msk : Modem interrupt Flag
* - \ref UART_INTSTS_MODEMIF_Msk : Modem interrupt Flag
* - \ref UART_INTSTS_RLSIF_Msk : Rx Line status interrupt Flag
* - \ref UART_INTSTS_THREIF_Msk : Tx empty interrupt Flag
* - \ref UART_INTSTS_RDAIF_Msk : Rx ready interrupt Flag

10
targets/TARGET_NUVOTON/TARGET_NUC472/serial_api.c
View File

@ -330,8 +330,10 @@ void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, Pi
MBED_ASSERT(uart_rts == obj->serial.uart);
// Enable the pin for RTS function
pinmap_pinout(rxflow, PinMap_UART_RTS);
// nRTS pin output is high level active
uart_base->MODEM = (uart_base->MODEM & ~UART_MODEM_RTSACTLV_Msk) | UART_MODEM_RTSACTLV_Msk;
// nRTS pin output is low level active
uart_base->MODEM |= UART_MODEM_RTSACTLV_Msk;
uart_base->MODEM &= ~UART_MODEM_RTS_Msk;
uart_base->FIFO = (uart_base->FIFO & ~UART_FIFO_RTSTRGLV_Msk) | UART_FIFO_RTSTRGLV_8BYTES;
// Enable RTS
uart_base->INTEN |= UART_INTEN_ATORTSEN_Msk;
@ -343,8 +345,8 @@ void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, Pi
MBED_ASSERT(uart_cts == obj->serial.uart);
// Enable the pin for CTS function
pinmap_pinout(txflow, PinMap_UART_CTS);
// nCTS pin input is high level active
uart_base->MODEMSTS = (uart_base->MODEMSTS & ~UART_MODEMSTS_CTSACTLV_Msk) | UART_MODEMSTS_CTSACTLV_Msk;
// nCTS pin input is low level active
uart_base->MODEMSTS |= UART_MODEMSTS_CTSACTLV_Msk;
// Enable CTS
uart_base->INTEN |= UART_INTEN_ATOCTSEN_Msk;
}