long dao / mbed-src

Mbed for VNG board

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/serial_api.c@414:4ec4c5b614b0, 2014-11-25 (annotated)

Committer:
mbed_official
Date:
Tue Nov 25 07:15:09 2014 +0000
Revision:
414:4ec4c5b614b0
Parent:
402:09075a3b15e3 
Synchronized with git revision fbc74e874ac089c6cb05add312fb5422be628886



Full URL: https://github.com/mbedmicro/mbed/commit/fbc74e874ac089c6cb05add312fb5422be628886/



Targets: NUCLEOs - Add PeripheralPins files for all nucleo targets

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 237:f3da66175598 1 /* mbed Microcontroller Library
mbed_official 237:f3da66175598 2 *******************************************************************************
mbed_official 237:f3da66175598 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 237:f3da66175598 4 * All rights reserved.
mbed_official 237:f3da66175598 5 *
mbed_official 237:f3da66175598 6 * Redistribution and use in source and binary forms, with or without
mbed_official 237:f3da66175598 7 * modification, are permitted provided that the following conditions are met:
mbed_official 237:f3da66175598 8 *
mbed_official 237:f3da66175598 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 237:f3da66175598 10 * this list of conditions and the following disclaimer.
mbed_official 237:f3da66175598 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 237:f3da66175598 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 237:f3da66175598 13 * and/or other materials provided with the distribution.
mbed_official 237:f3da66175598 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 237:f3da66175598 15 * may be used to endorse or promote products derived from this software
mbed_official 237:f3da66175598 16 * without specific prior written permission.
mbed_official 237:f3da66175598 17 *
mbed_official 237:f3da66175598 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 237:f3da66175598 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 237:f3da66175598 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 237:f3da66175598 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 237:f3da66175598 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 237:f3da66175598 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 237:f3da66175598 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 237:f3da66175598 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 237:f3da66175598 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 237:f3da66175598 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 237:f3da66175598 28 *******************************************************************************
mbed_official 237:f3da66175598 29 */
mbed_official 237:f3da66175598 30 #include "mbed_assert.h"
mbed_official 237:f3da66175598 31 #include "serial_api.h"
mbed_official 237:f3da66175598 32
mbed_official 237:f3da66175598 33 #if DEVICE_SERIAL
mbed_official 237:f3da66175598 34
mbed_official 237:f3da66175598 35 #include "cmsis.h"
mbed_official 237:f3da66175598 36 #include "pinmap.h"
mbed_official 237:f3da66175598 37 #include <string.h>
mbed_official 414:4ec4c5b614b0 38 #include "PeripheralPins.h"
mbed_official 237:f3da66175598 39
mbed_official 237:f3da66175598 40 #define UART_NUM (3)
mbed_official 237:f3da66175598 41
mbed_official 237:f3da66175598 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
mbed_official 237:f3da66175598 43
mbed_official 237:f3da66175598 44 static uart_irq_handler irq_handler;
mbed_official 237:f3da66175598 45
mbed_official 237:f3da66175598 46 UART_HandleTypeDef UartHandle;
mbed_official 237:f3da66175598 47
mbed_official 237:f3da66175598 48 int stdio_uart_inited = 0;
mbed_official 237:f3da66175598 49 serial_t stdio_uart;
mbed_official 237:f3da66175598 50
mbed_official 237:f3da66175598 51 static void init_uart(serial_t *obj)
mbed_official 237:f3da66175598 52 {
mbed_official 237:f3da66175598 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 237:f3da66175598 54
mbed_official 237:f3da66175598 55 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 237:f3da66175598 56 UartHandle.Init.WordLength = obj->databits;
mbed_official 237:f3da66175598 57 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 237:f3da66175598 58 UartHandle.Init.Parity = obj->parity;
mbed_official 237:f3da66175598 59 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 237:f3da66175598 60
mbed_official 237:f3da66175598 61 if (obj->pin_rx == NC) {
mbed_official 237:f3da66175598 62 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 237:f3da66175598 63 } else if (obj->pin_tx == NC) {
mbed_official 237:f3da66175598 64 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 237:f3da66175598 65 } else {
mbed_official 237:f3da66175598 66 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 237:f3da66175598 67 }
mbed_official 237:f3da66175598 68
mbed_official 293:2a9cf2ed1474 69 // Disable the reception overrun detection
mbed_official 293:2a9cf2ed1474 70 UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT;
mbed_official 293:2a9cf2ed1474 71 UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE;
mbed_official 402:09075a3b15e3 72
mbed_official 237:f3da66175598 73 HAL_UART_Init(&UartHandle);
mbed_official 237:f3da66175598 74 }
mbed_official 237:f3da66175598 75
mbed_official 237:f3da66175598 76 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 237:f3da66175598 77 {
mbed_official 237:f3da66175598 78 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 237:f3da66175598 79 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 237:f3da66175598 80 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 237:f3da66175598 81
mbed_official 237:f3da66175598 82 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 237:f3da66175598 83 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 237:f3da66175598 84 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 237:f3da66175598 85
mbed_official 237:f3da66175598 86 // Enable USART clock
mbed_official 237:f3da66175598 87 if (obj->uart == UART_1) {
mbed_official 237:f3da66175598 88 __USART1_CLK_ENABLE();
mbed_official 237:f3da66175598 89 obj->index = 0;
mbed_official 237:f3da66175598 90 }
mbed_official 237:f3da66175598 91 if (obj->uart == UART_2) {
mbed_official 237:f3da66175598 92 __USART2_CLK_ENABLE();
mbed_official 237:f3da66175598 93 obj->index = 1;
mbed_official 237:f3da66175598 94 }
mbed_official 237:f3da66175598 95 if (obj->uart == UART_3) {
mbed_official 237:f3da66175598 96 __USART3_CLK_ENABLE();
mbed_official 237:f3da66175598 97 obj->index = 2;
mbed_official 237:f3da66175598 98 }
mbed_official 237:f3da66175598 99
mbed_official 237:f3da66175598 100 // Configure the UART pins
mbed_official 237:f3da66175598 101 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 237:f3da66175598 102 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 339:40bd4701f3e2 103 if (tx != NC) {
mbed_official 339:40bd4701f3e2 104 pin_mode(tx, PullUp);
mbed_official 339:40bd4701f3e2 105 }
mbed_official 339:40bd4701f3e2 106 if (rx != NC) {
mbed_official 339:40bd4701f3e2 107 pin_mode(rx, PullUp);
mbed_official 339:40bd4701f3e2 108 }
mbed_official 237:f3da66175598 109
mbed_official 237:f3da66175598 110 // Configure UART
mbed_official 237:f3da66175598 111 obj->baudrate = 9600;
mbed_official 237:f3da66175598 112 obj->databits = UART_WORDLENGTH_8B;
mbed_official 237:f3da66175598 113 obj->stopbits = UART_STOPBITS_1;
mbed_official 237:f3da66175598 114 obj->parity = UART_PARITY_NONE;
mbed_official 237:f3da66175598 115
mbed_official 237:f3da66175598 116 obj->pin_tx = tx;
mbed_official 237:f3da66175598 117 obj->pin_rx = rx;
mbed_official 237:f3da66175598 118
mbed_official 237:f3da66175598 119 init_uart(obj);
mbed_official 237:f3da66175598 120
mbed_official 237:f3da66175598 121 // For stdio management
mbed_official 237:f3da66175598 122 if (obj->uart == STDIO_UART) {
mbed_official 237:f3da66175598 123 stdio_uart_inited = 1;
mbed_official 237:f3da66175598 124 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 237:f3da66175598 125 }
mbed_official 237:f3da66175598 126 }
mbed_official 237:f3da66175598 127
mbed_official 237:f3da66175598 128 void serial_free(serial_t *obj)
mbed_official 237:f3da66175598 129 {
mbed_official 237:f3da66175598 130 // Reset UART and disable clock
mbed_official 237:f3da66175598 131 if (obj->uart == UART_1) {
mbed_official 237:f3da66175598 132 __USART1_FORCE_RESET();
mbed_official 237:f3da66175598 133 __USART1_RELEASE_RESET();
mbed_official 237:f3da66175598 134 __USART1_CLK_DISABLE();
mbed_official 237:f3da66175598 135 }
mbed_official 237:f3da66175598 136 if (obj->uart == UART_2) {
mbed_official 237:f3da66175598 137 __USART2_FORCE_RESET();
mbed_official 237:f3da66175598 138 __USART2_RELEASE_RESET();
mbed_official 237:f3da66175598 139 __USART2_CLK_DISABLE();
mbed_official 237:f3da66175598 140 }
mbed_official 237:f3da66175598 141 if (obj->uart == UART_3) {
mbed_official 237:f3da66175598 142 __USART3_FORCE_RESET();
mbed_official 237:f3da66175598 143 __USART3_RELEASE_RESET();
mbed_official 237:f3da66175598 144 __USART3_CLK_DISABLE();
mbed_official 237:f3da66175598 145 }
mbed_official 237:f3da66175598 146
mbed_official 237:f3da66175598 147 // Configure GPIOs
mbed_official 237:f3da66175598 148 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 237:f3da66175598 149 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 237:f3da66175598 150
mbed_official 237:f3da66175598 151 serial_irq_ids[obj->index] = 0;
mbed_official 237:f3da66175598 152 }
mbed_official 237:f3da66175598 153
mbed_official 237:f3da66175598 154 void serial_baud(serial_t *obj, int baudrate)
mbed_official 237:f3da66175598 155 {
mbed_official 237:f3da66175598 156 obj->baudrate = baudrate;
mbed_official 237:f3da66175598 157 init_uart(obj);
mbed_official 237:f3da66175598 158 }
mbed_official 237:f3da66175598 159
mbed_official 237:f3da66175598 160 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 237:f3da66175598 161 {
mbed_official 237:f3da66175598 162 if (data_bits == 9) {
mbed_official 237:f3da66175598 163 obj->databits = UART_WORDLENGTH_9B;
mbed_official 237:f3da66175598 164 } else {
mbed_official 237:f3da66175598 165 obj->databits = UART_WORDLENGTH_8B;
mbed_official 237:f3da66175598 166 }
mbed_official 237:f3da66175598 167
mbed_official 237:f3da66175598 168 switch (parity) {
mbed_official 237:f3da66175598 169 case ParityOdd:
mbed_official 237:f3da66175598 170 case ParityForced0:
mbed_official 237:f3da66175598 171 obj->parity = UART_PARITY_ODD;
mbed_official 237:f3da66175598 172 break;
mbed_official 237:f3da66175598 173 case ParityEven:
mbed_official 237:f3da66175598 174 case ParityForced1:
mbed_official 237:f3da66175598 175 obj->parity = UART_PARITY_EVEN;
mbed_official 237:f3da66175598 176 break;
mbed_official 237:f3da66175598 177 default: // ParityNone
mbed_official 237:f3da66175598 178 obj->parity = UART_PARITY_NONE;
mbed_official 237:f3da66175598 179 break;
mbed_official 237:f3da66175598 180 }
mbed_official 237:f3da66175598 181
mbed_official 237:f3da66175598 182 if (stop_bits == 2) {
mbed_official 237:f3da66175598 183 obj->stopbits = UART_STOPBITS_2;
mbed_official 237:f3da66175598 184 } else {
mbed_official 237:f3da66175598 185 obj->stopbits = UART_STOPBITS_1;
mbed_official 237:f3da66175598 186 }
mbed_official 237:f3da66175598 187
mbed_official 237:f3da66175598 188 init_uart(obj);
mbed_official 237:f3da66175598 189 }
mbed_official 237:f3da66175598 190
mbed_official 237:f3da66175598 191 /******************************************************************************
mbed_official 237:f3da66175598 192 * INTERRUPTS HANDLING
mbed_official 237:f3da66175598 193 ******************************************************************************/
mbed_official 237:f3da66175598 194
mbed_official 237:f3da66175598 195 static void uart_irq(UARTName name, int id)
mbed_official 237:f3da66175598 196 {
mbed_official 237:f3da66175598 197 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 237:f3da66175598 198 if (serial_irq_ids[id] != 0) {
mbed_official 237:f3da66175598 199 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 237:f3da66175598 200 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 237:f3da66175598 201 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 237:f3da66175598 202 }
mbed_official 237:f3da66175598 203 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 237:f3da66175598 204 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 293:2a9cf2ed1474 205 volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
mbed_official 237:f3da66175598 206 }
mbed_official 237:f3da66175598 207 }
mbed_official 237:f3da66175598 208 }
mbed_official 237:f3da66175598 209
mbed_official 237:f3da66175598 210 static void uart1_irq(void)
mbed_official 237:f3da66175598 211 {
mbed_official 237:f3da66175598 212 uart_irq(UART_1, 0);
mbed_official 237:f3da66175598 213 }
mbed_official 237:f3da66175598 214
mbed_official 237:f3da66175598 215 static void uart2_irq(void)
mbed_official 237:f3da66175598 216 {
mbed_official 237:f3da66175598 217 uart_irq(UART_2, 1);
mbed_official 237:f3da66175598 218 }
mbed_official 237:f3da66175598 219
mbed_official 237:f3da66175598 220 static void uart3_irq(void)
mbed_official 237:f3da66175598 221 {
mbed_official 237:f3da66175598 222 uart_irq(UART_3, 2);
mbed_official 237:f3da66175598 223 }
mbed_official 237:f3da66175598 224
mbed_official 237:f3da66175598 225 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 237:f3da66175598 226 {
mbed_official 237:f3da66175598 227 irq_handler = handler;
mbed_official 237:f3da66175598 228 serial_irq_ids[obj->index] = id;
mbed_official 237:f3da66175598 229 }
mbed_official 237:f3da66175598 230
mbed_official 237:f3da66175598 231 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 237:f3da66175598 232 {
mbed_official 237:f3da66175598 233 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 237:f3da66175598 234 uint32_t vector = 0;
mbed_official 237:f3da66175598 235
mbed_official 237:f3da66175598 236 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 237:f3da66175598 237
mbed_official 237:f3da66175598 238 if (obj->uart == UART_1) {
mbed_official 237:f3da66175598 239 irq_n = USART1_IRQn;
mbed_official 237:f3da66175598 240 vector = (uint32_t)&uart1_irq;
mbed_official 237:f3da66175598 241 }
mbed_official 237:f3da66175598 242
mbed_official 237:f3da66175598 243 if (obj->uart == UART_2) {
mbed_official 237:f3da66175598 244 irq_n = USART2_IRQn;
mbed_official 237:f3da66175598 245 vector = (uint32_t)&uart2_irq;
mbed_official 237:f3da66175598 246 }
mbed_official 237:f3da66175598 247
mbed_official 237:f3da66175598 248 if (obj->uart == UART_3) {
mbed_official 237:f3da66175598 249 irq_n = USART3_IRQn;
mbed_official 237:f3da66175598 250 vector = (uint32_t)&uart3_irq;
mbed_official 237:f3da66175598 251 }
mbed_official 237:f3da66175598 252
mbed_official 237:f3da66175598 253 if (enable) {
mbed_official 237:f3da66175598 254
mbed_official 237:f3da66175598 255 if (irq == RxIrq) {
mbed_official 237:f3da66175598 256 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 237:f3da66175598 257 } else { // TxIrq
mbed_official 237:f3da66175598 258 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 237:f3da66175598 259 }
mbed_official 237:f3da66175598 260
mbed_official 237:f3da66175598 261 NVIC_SetVector(irq_n, vector);
mbed_official 237:f3da66175598 262 NVIC_EnableIRQ(irq_n);
mbed_official 237:f3da66175598 263
mbed_official 237:f3da66175598 264 } else { // disable
mbed_official 237:f3da66175598 265
mbed_official 237:f3da66175598 266 int all_disabled = 0;
mbed_official 237:f3da66175598 267
mbed_official 237:f3da66175598 268 if (irq == RxIrq) {
mbed_official 237:f3da66175598 269 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 237:f3da66175598 270 // Check if TxIrq is disabled too
mbed_official 293:2a9cf2ed1474 271 if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1;
mbed_official 237:f3da66175598 272 } else { // TxIrq
mbed_official 293:2a9cf2ed1474 273 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 237:f3da66175598 274 // Check if RxIrq is disabled too
mbed_official 237:f3da66175598 275 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 237:f3da66175598 276 }
mbed_official 237:f3da66175598 277
mbed_official 237:f3da66175598 278 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 237:f3da66175598 279
mbed_official 237:f3da66175598 280 }
mbed_official 237:f3da66175598 281 }
mbed_official 237:f3da66175598 282
mbed_official 237:f3da66175598 283 /******************************************************************************
mbed_official 237:f3da66175598 284 * READ/WRITE
mbed_official 237:f3da66175598 285 ******************************************************************************/
mbed_official 237:f3da66175598 286
mbed_official 237:f3da66175598 287 int serial_getc(serial_t *obj)
mbed_official 237:f3da66175598 288 {
mbed_official 237:f3da66175598 289 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 237:f3da66175598 290 while (!serial_readable(obj));
mbed_official 237:f3da66175598 291 if (obj->databits == UART_WORDLENGTH_8B) {
mbed_official 237:f3da66175598 292 return (int)(uart->RDR & (uint8_t)0xFF);
mbed_official 237:f3da66175598 293 } else {
mbed_official 237:f3da66175598 294 return (int)(uart->RDR & (uint16_t)0x1FF);
mbed_official 237:f3da66175598 295 }
mbed_official 237:f3da66175598 296 }
mbed_official 237:f3da66175598 297
mbed_official 237:f3da66175598 298 void serial_putc(serial_t *obj, int c)
mbed_official 237:f3da66175598 299 {
mbed_official 237:f3da66175598 300 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 237:f3da66175598 301 while (!serial_writable(obj));
mbed_official 237:f3da66175598 302 if (obj->databits == UART_WORDLENGTH_8B) {
mbed_official 237:f3da66175598 303 uart->TDR = (uint8_t)(c & (uint8_t)0xFF);
mbed_official 237:f3da66175598 304 } else {
mbed_official 237:f3da66175598 305 uart->TDR = (uint16_t)(c & (uint16_t)0x1FF);
mbed_official 237:f3da66175598 306 }
mbed_official 237:f3da66175598 307 }
mbed_official 237:f3da66175598 308
mbed_official 237:f3da66175598 309 int serial_readable(serial_t *obj)
mbed_official 237:f3da66175598 310 {
mbed_official 237:f3da66175598 311 int status;
mbed_official 237:f3da66175598 312 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 237:f3da66175598 313 // Check if data is received
mbed_official 237:f3da66175598 314 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 237:f3da66175598 315 return status;
mbed_official 237:f3da66175598 316 }
mbed_official 237:f3da66175598 317
mbed_official 237:f3da66175598 318 int serial_writable(serial_t *obj)
mbed_official 237:f3da66175598 319 {
mbed_official 237:f3da66175598 320 int status;
mbed_official 237:f3da66175598 321 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 237:f3da66175598 322 // Check if data is transmitted
mbed_official 237:f3da66175598 323 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 237:f3da66175598 324 return status;
mbed_official 237:f3da66175598 325 }
mbed_official 237:f3da66175598 326
mbed_official 237:f3da66175598 327 void serial_clear(serial_t *obj)
mbed_official 237:f3da66175598 328 {
mbed_official 237:f3da66175598 329 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 293:2a9cf2ed1474 330 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 293:2a9cf2ed1474 331 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 237:f3da66175598 332 }
mbed_official 237:f3da66175598 333
mbed_official 237:f3da66175598 334 void serial_pinout_tx(PinName tx)
mbed_official 237:f3da66175598 335 {
mbed_official 237:f3da66175598 336 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 237:f3da66175598 337 }
mbed_official 237:f3da66175598 338
mbed_official 237:f3da66175598 339 void serial_break_set(serial_t *obj)
mbed_official 237:f3da66175598 340 {
mbed_official 237:f3da66175598 341 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 237:f3da66175598 342 HAL_LIN_SendBreak(&UartHandle);
mbed_official 237:f3da66175598 343 }
mbed_official 237:f3da66175598 344
mbed_official 237:f3da66175598 345 void serial_break_clear(serial_t *obj)
mbed_official 237:f3da66175598 346 {
mbed_official 237:f3da66175598 347 }
mbed_official 237:f3da66175598 348
mbed_official 237:f3da66175598 349 #endif