gabriel della-monica / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_STM32F411RE/serial_api.c@429:cc5da43e7bf6, 2014-12-09 (annotated)

Committer:
mbed_official
Date:
Tue Dec 09 14:15:07 2014 +0000
Revision:
429:cc5da43e7bf6
Parent:
targets/hal/TARGET_STM/TARGET_NUCLEO_F411RE/serial_api.c@406:7b834b41c730 
Synchronized with git revision 75673df767b901eda5c6ea6c737b58deb390c955



Full URL: https://github.com/mbedmicro/mbed/commit/75673df767b901eda5c6ea6c737b58deb390c955/



Add support for mDot with STM32F411RE processor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 235:685d5f11838f 1 /* mbed Microcontroller Library
mbed_official 235:685d5f11838f 2 *******************************************************************************
mbed_official 235:685d5f11838f 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 235:685d5f11838f 4 * All rights reserved.
mbed_official 235:685d5f11838f 5 *
mbed_official 235:685d5f11838f 6 * Redistribution and use in source and binary forms, with or without
mbed_official 235:685d5f11838f 7 * modification, are permitted provided that the following conditions are met:
mbed_official 235:685d5f11838f 8 *
mbed_official 235:685d5f11838f 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 235:685d5f11838f 10 * this list of conditions and the following disclaimer.
mbed_official 235:685d5f11838f 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 235:685d5f11838f 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 235:685d5f11838f 13 * and/or other materials provided with the distribution.
mbed_official 235:685d5f11838f 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 235:685d5f11838f 15 * may be used to endorse or promote products derived from this software
mbed_official 235:685d5f11838f 16 * without specific prior written permission.
mbed_official 235:685d5f11838f 17 *
mbed_official 235:685d5f11838f 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 235:685d5f11838f 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 235:685d5f11838f 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 235:685d5f11838f 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 235:685d5f11838f 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 235:685d5f11838f 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 235:685d5f11838f 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 235:685d5f11838f 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 235:685d5f11838f 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 235:685d5f11838f 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 235:685d5f11838f 28 *******************************************************************************
mbed_official 235:685d5f11838f 29 */
mbed_official 235:685d5f11838f 30 #include "mbed_assert.h"
mbed_official 235:685d5f11838f 31 #include "serial_api.h"
mbed_official 235:685d5f11838f 32
mbed_official 235:685d5f11838f 33 #if DEVICE_SERIAL
mbed_official 235:685d5f11838f 34
mbed_official 235:685d5f11838f 35 #include "cmsis.h"
mbed_official 235:685d5f11838f 36 #include "pinmap.h"
mbed_official 235:685d5f11838f 37 #include <string.h>
mbed_official 406:7b834b41c730 38 #include "PeripheralPins.h"
mbed_official 235:685d5f11838f 39
mbed_official 235:685d5f11838f 40 #define UART_NUM (3)
mbed_official 235:685d5f11838f 41
mbed_official 235:685d5f11838f 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
mbed_official 235:685d5f11838f 43
mbed_official 235:685d5f11838f 44 static uart_irq_handler irq_handler;
mbed_official 235:685d5f11838f 45
mbed_official 235:685d5f11838f 46 UART_HandleTypeDef UartHandle;
mbed_official 235:685d5f11838f 47
mbed_official 235:685d5f11838f 48 int stdio_uart_inited = 0;
mbed_official 235:685d5f11838f 49 serial_t stdio_uart;
mbed_official 235:685d5f11838f 50
mbed_official 235:685d5f11838f 51 static void init_uart(serial_t *obj)
mbed_official 235:685d5f11838f 52 {
mbed_official 235:685d5f11838f 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 54
mbed_official 235:685d5f11838f 55 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 235:685d5f11838f 56 UartHandle.Init.WordLength = obj->databits;
mbed_official 235:685d5f11838f 57 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 235:685d5f11838f 58 UartHandle.Init.Parity = obj->parity;
mbed_official 235:685d5f11838f 59 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 235:685d5f11838f 60
mbed_official 235:685d5f11838f 61 if (obj->pin_rx == NC) {
mbed_official 235:685d5f11838f 62 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 235:685d5f11838f 63 } else if (obj->pin_tx == NC) {
mbed_official 235:685d5f11838f 64 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 235:685d5f11838f 65 } else {
mbed_official 235:685d5f11838f 66 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 235:685d5f11838f 67 }
mbed_official 235:685d5f11838f 68
mbed_official 235:685d5f11838f 69 HAL_UART_Init(&UartHandle);
mbed_official 235:685d5f11838f 70 }
mbed_official 235:685d5f11838f 71
mbed_official 235:685d5f11838f 72 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 235:685d5f11838f 73 {
mbed_official 235:685d5f11838f 74 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 235:685d5f11838f 75 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 235:685d5f11838f 76 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 235:685d5f11838f 77
mbed_official 235:685d5f11838f 78 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 235:685d5f11838f 79 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 235:685d5f11838f 80 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 235:685d5f11838f 81
mbed_official 235:685d5f11838f 82 // Enable USART clock
mbed_official 235:685d5f11838f 83 if (obj->uart == UART_1) {
mbed_official 235:685d5f11838f 84 __USART1_CLK_ENABLE();
mbed_official 235:685d5f11838f 85 obj->index = 0;
mbed_official 235:685d5f11838f 86 }
mbed_official 235:685d5f11838f 87 if (obj->uart == UART_2) {
mbed_official 235:685d5f11838f 88 __USART2_CLK_ENABLE();
mbed_official 235:685d5f11838f 89 obj->index = 1;
mbed_official 235:685d5f11838f 90 }
mbed_official 235:685d5f11838f 91 if (obj->uart == UART_6) {
mbed_official 235:685d5f11838f 92 __USART6_CLK_ENABLE();
mbed_official 235:685d5f11838f 93 obj->index = 2;
mbed_official 235:685d5f11838f 94 }
mbed_official 235:685d5f11838f 95
mbed_official 235:685d5f11838f 96 // Configure the UART pins
mbed_official 235:685d5f11838f 97 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 235:685d5f11838f 98 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 339:40bd4701f3e2 99 if (tx != NC) {
mbed_official 339:40bd4701f3e2 100 pin_mode(tx, PullUp);
mbed_official 339:40bd4701f3e2 101 }
mbed_official 339:40bd4701f3e2 102 if (rx != NC) {
mbed_official 339:40bd4701f3e2 103 pin_mode(rx, PullUp);
mbed_official 339:40bd4701f3e2 104 }
mbed_official 235:685d5f11838f 105
mbed_official 235:685d5f11838f 106 // Configure UART
mbed_official 235:685d5f11838f 107 obj->baudrate = 9600;
mbed_official 235:685d5f11838f 108 obj->databits = UART_WORDLENGTH_8B;
mbed_official 235:685d5f11838f 109 obj->stopbits = UART_STOPBITS_1;
mbed_official 235:685d5f11838f 110 obj->parity = UART_PARITY_NONE;
mbed_official 235:685d5f11838f 111
mbed_official 235:685d5f11838f 112 obj->pin_tx = tx;
mbed_official 235:685d5f11838f 113 obj->pin_rx = rx;
mbed_official 235:685d5f11838f 114
mbed_official 235:685d5f11838f 115 init_uart(obj);
mbed_official 235:685d5f11838f 116
mbed_official 235:685d5f11838f 117 // For stdio management
mbed_official 235:685d5f11838f 118 if (obj->uart == STDIO_UART) {
mbed_official 235:685d5f11838f 119 stdio_uart_inited = 1;
mbed_official 235:685d5f11838f 120 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 235:685d5f11838f 121 }
mbed_official 235:685d5f11838f 122 }
mbed_official 235:685d5f11838f 123
mbed_official 235:685d5f11838f 124 void serial_free(serial_t *obj)
mbed_official 235:685d5f11838f 125 {
mbed_official 235:685d5f11838f 126 // Reset UART and disable clock
mbed_official 235:685d5f11838f 127 if (obj->uart == UART_1) {
mbed_official 235:685d5f11838f 128 __USART1_FORCE_RESET();
mbed_official 235:685d5f11838f 129 __USART1_RELEASE_RESET();
mbed_official 235:685d5f11838f 130 __USART1_CLK_DISABLE();
mbed_official 235:685d5f11838f 131 }
mbed_official 235:685d5f11838f 132 if (obj->uart == UART_2) {
mbed_official 235:685d5f11838f 133 __USART2_FORCE_RESET();
mbed_official 235:685d5f11838f 134 __USART2_RELEASE_RESET();
mbed_official 235:685d5f11838f 135 __USART2_CLK_DISABLE();
mbed_official 235:685d5f11838f 136 }
mbed_official 235:685d5f11838f 137 if (obj->uart == UART_6) {
mbed_official 235:685d5f11838f 138 __USART6_FORCE_RESET();
mbed_official 235:685d5f11838f 139 __USART6_RELEASE_RESET();
mbed_official 235:685d5f11838f 140 __USART6_CLK_DISABLE();
mbed_official 235:685d5f11838f 141 }
mbed_official 235:685d5f11838f 142
mbed_official 235:685d5f11838f 143 // Configure GPIOs
mbed_official 235:685d5f11838f 144 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 235:685d5f11838f 145 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 235:685d5f11838f 146
mbed_official 235:685d5f11838f 147 serial_irq_ids[obj->index] = 0;
mbed_official 235:685d5f11838f 148 }
mbed_official 235:685d5f11838f 149
mbed_official 235:685d5f11838f 150 void serial_baud(serial_t *obj, int baudrate)
mbed_official 235:685d5f11838f 151 {
mbed_official 235:685d5f11838f 152 obj->baudrate = baudrate;
mbed_official 235:685d5f11838f 153 init_uart(obj);
mbed_official 235:685d5f11838f 154 }
mbed_official 235:685d5f11838f 155
mbed_official 235:685d5f11838f 156 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 235:685d5f11838f 157 {
mbed_official 235:685d5f11838f 158 if (data_bits == 9) {
mbed_official 235:685d5f11838f 159 obj->databits = UART_WORDLENGTH_9B;
mbed_official 235:685d5f11838f 160 } else {
mbed_official 235:685d5f11838f 161 obj->databits = UART_WORDLENGTH_8B;
mbed_official 235:685d5f11838f 162 }
mbed_official 235:685d5f11838f 163
mbed_official 235:685d5f11838f 164 switch (parity) {
mbed_official 235:685d5f11838f 165 case ParityOdd:
mbed_official 235:685d5f11838f 166 case ParityForced0:
mbed_official 235:685d5f11838f 167 obj->parity = UART_PARITY_ODD;
mbed_official 235:685d5f11838f 168 break;
mbed_official 235:685d5f11838f 169 case ParityEven:
mbed_official 235:685d5f11838f 170 case ParityForced1:
mbed_official 235:685d5f11838f 171 obj->parity = UART_PARITY_EVEN;
mbed_official 235:685d5f11838f 172 break;
mbed_official 235:685d5f11838f 173 default: // ParityNone
mbed_official 235:685d5f11838f 174 obj->parity = UART_PARITY_NONE;
mbed_official 235:685d5f11838f 175 break;
mbed_official 235:685d5f11838f 176 }
mbed_official 235:685d5f11838f 177
mbed_official 235:685d5f11838f 178 if (stop_bits == 2) {
mbed_official 235:685d5f11838f 179 obj->stopbits = UART_STOPBITS_2;
mbed_official 235:685d5f11838f 180 } else {
mbed_official 235:685d5f11838f 181 obj->stopbits = UART_STOPBITS_1;
mbed_official 235:685d5f11838f 182 }
mbed_official 235:685d5f11838f 183
mbed_official 235:685d5f11838f 184 init_uart(obj);
mbed_official 235:685d5f11838f 185 }
mbed_official 235:685d5f11838f 186
mbed_official 235:685d5f11838f 187 /******************************************************************************
mbed_official 235:685d5f11838f 188 * INTERRUPTS HANDLING
mbed_official 235:685d5f11838f 189 ******************************************************************************/
mbed_official 235:685d5f11838f 190
mbed_official 235:685d5f11838f 191 static void uart_irq(UARTName name, int id)
mbed_official 235:685d5f11838f 192 {
mbed_official 235:685d5f11838f 193 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 235:685d5f11838f 194 if (serial_irq_ids[id] != 0) {
mbed_official 235:685d5f11838f 195 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 235:685d5f11838f 196 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 235:685d5f11838f 197 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 235:685d5f11838f 198 }
mbed_official 235:685d5f11838f 199 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 235:685d5f11838f 200 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 235:685d5f11838f 201 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 235:685d5f11838f 202 }
mbed_official 235:685d5f11838f 203 }
mbed_official 235:685d5f11838f 204 }
mbed_official 235:685d5f11838f 205
mbed_official 235:685d5f11838f 206 static void uart1_irq(void)
mbed_official 235:685d5f11838f 207 {
mbed_official 235:685d5f11838f 208 uart_irq(UART_1, 0);
mbed_official 235:685d5f11838f 209 }
mbed_official 235:685d5f11838f 210
mbed_official 235:685d5f11838f 211 static void uart2_irq(void)
mbed_official 235:685d5f11838f 212 {
mbed_official 235:685d5f11838f 213 uart_irq(UART_2, 1);
mbed_official 235:685d5f11838f 214 }
mbed_official 235:685d5f11838f 215
mbed_official 235:685d5f11838f 216 static void uart6_irq(void)
mbed_official 235:685d5f11838f 217 {
mbed_official 235:685d5f11838f 218 uart_irq(UART_6, 2);
mbed_official 235:685d5f11838f 219 }
mbed_official 235:685d5f11838f 220
mbed_official 235:685d5f11838f 221 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 235:685d5f11838f 222 {
mbed_official 235:685d5f11838f 223 irq_handler = handler;
mbed_official 235:685d5f11838f 224 serial_irq_ids[obj->index] = id;
mbed_official 235:685d5f11838f 225 }
mbed_official 235:685d5f11838f 226
mbed_official 235:685d5f11838f 227 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 235:685d5f11838f 228 {
mbed_official 235:685d5f11838f 229 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 235:685d5f11838f 230 uint32_t vector = 0;
mbed_official 235:685d5f11838f 231
mbed_official 235:685d5f11838f 232 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 233
mbed_official 235:685d5f11838f 234 if (obj->uart == UART_1) {
mbed_official 235:685d5f11838f 235 irq_n = USART1_IRQn;
mbed_official 235:685d5f11838f 236 vector = (uint32_t)&uart1_irq;
mbed_official 235:685d5f11838f 237 }
mbed_official 235:685d5f11838f 238
mbed_official 235:685d5f11838f 239 if (obj->uart == UART_2) {
mbed_official 235:685d5f11838f 240 irq_n = USART2_IRQn;
mbed_official 235:685d5f11838f 241 vector = (uint32_t)&uart2_irq;
mbed_official 235:685d5f11838f 242 }
mbed_official 235:685d5f11838f 243
mbed_official 235:685d5f11838f 244 if (obj->uart == UART_6) {
mbed_official 235:685d5f11838f 245 irq_n = USART6_IRQn;
mbed_official 235:685d5f11838f 246 vector = (uint32_t)&uart6_irq;
mbed_official 235:685d5f11838f 247 }
mbed_official 235:685d5f11838f 248
mbed_official 235:685d5f11838f 249 if (enable) {
mbed_official 235:685d5f11838f 250
mbed_official 235:685d5f11838f 251 if (irq == RxIrq) {
mbed_official 235:685d5f11838f 252 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 235:685d5f11838f 253 } else { // TxIrq
mbed_official 235:685d5f11838f 254 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 235:685d5f11838f 255 }
mbed_official 235:685d5f11838f 256
mbed_official 235:685d5f11838f 257 NVIC_SetVector(irq_n, vector);
mbed_official 235:685d5f11838f 258 NVIC_EnableIRQ(irq_n);
mbed_official 235:685d5f11838f 259
mbed_official 235:685d5f11838f 260 } else { // disable
mbed_official 235:685d5f11838f 261
mbed_official 235:685d5f11838f 262 int all_disabled = 0;
mbed_official 235:685d5f11838f 263
mbed_official 235:685d5f11838f 264 if (irq == RxIrq) {
mbed_official 235:685d5f11838f 265 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 235:685d5f11838f 266 // Check if TxIrq is disabled too
mbed_official 235:685d5f11838f 267 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 235:685d5f11838f 268 } else { // TxIrq
mbed_official 235:685d5f11838f 269 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 235:685d5f11838f 270 // Check if RxIrq is disabled too
mbed_official 235:685d5f11838f 271 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 235:685d5f11838f 272 }
mbed_official 235:685d5f11838f 273
mbed_official 235:685d5f11838f 274 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 235:685d5f11838f 275
mbed_official 235:685d5f11838f 276 }
mbed_official 235:685d5f11838f 277 }
mbed_official 235:685d5f11838f 278
mbed_official 235:685d5f11838f 279 /******************************************************************************
mbed_official 235:685d5f11838f 280 * READ/WRITE
mbed_official 235:685d5f11838f 281 ******************************************************************************/
mbed_official 235:685d5f11838f 282
mbed_official 235:685d5f11838f 283 int serial_getc(serial_t *obj)
mbed_official 235:685d5f11838f 284 {
mbed_official 235:685d5f11838f 285 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 286 while (!serial_readable(obj));
mbed_official 235:685d5f11838f 287 return (int)(uart->DR & 0x1FF);
mbed_official 235:685d5f11838f 288 }
mbed_official 235:685d5f11838f 289
mbed_official 235:685d5f11838f 290 void serial_putc(serial_t *obj, int c)
mbed_official 235:685d5f11838f 291 {
mbed_official 235:685d5f11838f 292 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 293 while (!serial_writable(obj));
mbed_official 235:685d5f11838f 294 uart->DR = (uint32_t)(c & 0x1FF);
mbed_official 235:685d5f11838f 295 }
mbed_official 235:685d5f11838f 296
mbed_official 235:685d5f11838f 297 int serial_readable(serial_t *obj)
mbed_official 235:685d5f11838f 298 {
mbed_official 235:685d5f11838f 299 int status;
mbed_official 235:685d5f11838f 300 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 301 // Check if data is received
mbed_official 235:685d5f11838f 302 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 235:685d5f11838f 303 return status;
mbed_official 235:685d5f11838f 304 }
mbed_official 235:685d5f11838f 305
mbed_official 235:685d5f11838f 306 int serial_writable(serial_t *obj)
mbed_official 235:685d5f11838f 307 {
mbed_official 235:685d5f11838f 308 int status;
mbed_official 235:685d5f11838f 309 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 310 // Check if data is transmitted
mbed_official 235:685d5f11838f 311 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 235:685d5f11838f 312 return status;
mbed_official 235:685d5f11838f 313 }
mbed_official 235:685d5f11838f 314
mbed_official 235:685d5f11838f 315 void serial_clear(serial_t *obj)
mbed_official 235:685d5f11838f 316 {
mbed_official 235:685d5f11838f 317 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 318 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 235:685d5f11838f 319 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 235:685d5f11838f 320 }
mbed_official 235:685d5f11838f 321
mbed_official 235:685d5f11838f 322 void serial_pinout_tx(PinName tx)
mbed_official 235:685d5f11838f 323 {
mbed_official 235:685d5f11838f 324 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 235:685d5f11838f 325 }
mbed_official 235:685d5f11838f 326
mbed_official 235:685d5f11838f 327 void serial_break_set(serial_t *obj)
mbed_official 235:685d5f11838f 328 {
mbed_official 235:685d5f11838f 329 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 235:685d5f11838f 330 HAL_LIN_SendBreak(&UartHandle);
mbed_official 235:685d5f11838f 331 }
mbed_official 235:685d5f11838f 332
mbed_official 235:685d5f11838f 333 void serial_break_clear(serial_t *obj)
mbed_official 235:685d5f11838f 334 {
mbed_official 235:685d5f11838f 335 }
mbed_official 235:685d5f11838f 336
mbed_official 235:685d5f11838f 337 #endif