mbed library sources
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Superseded
This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.
Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.
If you are looking for a stable and tested release, please import one of the official mbed library releases:
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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Diff: targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/serial_api.c
- Revision:
- 174:8bb9f3a33240
- Parent:
- 167:d5744491c362
- Child:
- 208:4557f4bb2dd5
--- a/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/serial_api.c Mon Apr 28 18:15:06 2014 +0100 +++ b/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/serial_api.c Tue Apr 29 11:15:07 2014 +0100 @@ -28,6 +28,9 @@ ******************************************************************************* */ #include "serial_api.h" + +#if DEVICE_SERIAL + #include "cmsis.h" #include "pinmap.h" #include "error.h" @@ -63,7 +66,7 @@ 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; @@ -73,15 +76,15 @@ 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); @@ -91,15 +94,15 @@ // 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); } - + // Configure the UART pins pinmap_pinout(tx, PinMap_UART_TX); pinmap_pinout(rx, PinMap_UART_RX); @@ -108,7 +111,7 @@ 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); @@ -116,13 +119,12 @@ if (obj->uart == UART_1) obj->index = 0; if (obj->uart == UART_2) obj->index = 1; if (obj->uart == UART_3) obj->index = 2; - + // 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) { @@ -137,29 +139,27 @@ 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; } @@ -205,50 +205,48 @@ 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 (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); - - } + + } } /****************************************************************************** @@ -300,3 +298,5 @@ void serial_break_clear(serial_t *obj) { } + +#endif