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Mbed for VNG board

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F030R8/serial_api.c@404:cbc7dfcb0ce9, 2014-11-14 (annotated)

Committer:
mbed_official
Date:
Fri Nov 14 10:15:07 2014 +0000
Revision:
404:cbc7dfcb0ce9
Parent:
402:09075a3b15e3
Child:
414:4ec4c5b614b0
Synchronized with git revision c4901dbb33541e1dcda3fe69a1ec2a11caf496bf



Full URL: https://github.com/mbedmicro/mbed/commit/c4901dbb33541e1dcda3fe69a1ec2a11caf496bf/



Targets: NUCLEOs - Align hal files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 *******************************************************************************
mbed_official 76:aeb1df146756 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 4 * All rights reserved.
mbed_official 76:aeb1df146756 5 *
mbed_official 76:aeb1df146756 6 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 7 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 8 *
mbed_official 76:aeb1df146756 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 10 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 13 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 15 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 16 * without specific prior written permission.
mbed_official 76:aeb1df146756 17 *
mbed_official 76:aeb1df146756 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 28 *******************************************************************************
mbed_official 76:aeb1df146756 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 76:aeb1df146756 31 #include "serial_api.h"
mbed_official 166:cb4253f91ada 32
mbed_official 166:cb4253f91ada 33 #if DEVICE_SERIAL
mbed_official 166:cb4253f91ada 34
mbed_official 76:aeb1df146756 35 #include "cmsis.h"
mbed_official 76:aeb1df146756 36 #include "pinmap.h"
mbed_official 76:aeb1df146756 37 #include <string.h>
mbed_official 76:aeb1df146756 38
mbed_official 76:aeb1df146756 39 static const PinMap PinMap_UART_TX[] = {
mbed_official 340:28d1f895c6fe 40 {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_USART2)},
mbed_official 340:28d1f895c6fe 41 {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_USART1)},
mbed_official 340:28d1f895c6fe 42 {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
mbed_official 76:aeb1df146756 43 {NC, NC, 0}
mbed_official 76:aeb1df146756 44 };
mbed_official 76:aeb1df146756 45
mbed_official 76:aeb1df146756 46 static const PinMap PinMap_UART_RX[] = {
mbed_official 340:28d1f895c6fe 47 {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_USART2)},
mbed_official 340:28d1f895c6fe 48 {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_USART1)},
mbed_official 340:28d1f895c6fe 49 {PA_15, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_USART2)},
mbed_official 340:28d1f895c6fe 50 {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
mbed_official 76:aeb1df146756 51 {NC, NC, 0}
mbed_official 76:aeb1df146756 52 };
mbed_official 76:aeb1df146756 53
mbed_official 76:aeb1df146756 54 #define UART_NUM (2)
mbed_official 76:aeb1df146756 55
mbed_official 340:28d1f895c6fe 56 static uint32_t serial_irq_ids[UART_NUM] = {0, 0};
mbed_official 76:aeb1df146756 57
mbed_official 76:aeb1df146756 58 static uart_irq_handler irq_handler;
mbed_official 76:aeb1df146756 59
mbed_official 340:28d1f895c6fe 60 UART_HandleTypeDef UartHandle;
mbed_official 340:28d1f895c6fe 61
mbed_official 76:aeb1df146756 62 int stdio_uart_inited = 0;
mbed_official 76:aeb1df146756 63 serial_t stdio_uart;
mbed_official 76:aeb1df146756 64
mbed_official 402:09075a3b15e3 65 static void init_uart(serial_t *obj)
mbed_official 402:09075a3b15e3 66 {
mbed_official 340:28d1f895c6fe 67 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 68
mbed_official 340:28d1f895c6fe 69 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 340:28d1f895c6fe 70 UartHandle.Init.WordLength = obj->databits;
mbed_official 340:28d1f895c6fe 71 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 340:28d1f895c6fe 72 UartHandle.Init.Parity = obj->parity;
mbed_official 340:28d1f895c6fe 73 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 242:7074e42da0b2 74
mbed_official 242:7074e42da0b2 75 if (obj->pin_rx == NC) {
mbed_official 340:28d1f895c6fe 76 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 242:7074e42da0b2 77 } else if (obj->pin_tx == NC) {
mbed_official 340:28d1f895c6fe 78 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 242:7074e42da0b2 79 } else {
mbed_official 340:28d1f895c6fe 80 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 242:7074e42da0b2 81 }
mbed_official 242:7074e42da0b2 82
mbed_official 340:28d1f895c6fe 83 // Disable the reception overrun detection
mbed_official 340:28d1f895c6fe 84 UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT;
mbed_official 340:28d1f895c6fe 85 UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE;
mbed_official 402:09075a3b15e3 86
mbed_official 340:28d1f895c6fe 87 HAL_UART_Init(&UartHandle);
mbed_official 76:aeb1df146756 88 }
mbed_official 76:aeb1df146756 89
mbed_official 402:09075a3b15e3 90 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 402:09075a3b15e3 91 {
mbed_official 76:aeb1df146756 92 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 76:aeb1df146756 93 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 94 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 216:577900467c9e 95
mbed_official 76:aeb1df146756 96 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 76:aeb1df146756 97 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 98 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 76:aeb1df146756 99
mbed_official 76:aeb1df146756 100 // Enable USART clock
mbed_official 76:aeb1df146756 101 if (obj->uart == UART_1) {
mbed_official 340:28d1f895c6fe 102 __USART1_CLK_ENABLE();
mbed_official 216:577900467c9e 103 obj->index = 0;
mbed_official 76:aeb1df146756 104 }
mbed_official 404:cbc7dfcb0ce9 105
mbed_official 76:aeb1df146756 106 if (obj->uart == UART_2) {
mbed_official 340:28d1f895c6fe 107 __USART2_CLK_ENABLE();
mbed_official 216:577900467c9e 108 obj->index = 1;
mbed_official 76:aeb1df146756 109 }
mbed_official 216:577900467c9e 110
mbed_official 76:aeb1df146756 111 // Configure the UART pins
mbed_official 76:aeb1df146756 112 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 113 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 404:cbc7dfcb0ce9 114 if (tx != NC) {
mbed_official 404:cbc7dfcb0ce9 115 pin_mode(tx, PullUp);
mbed_official 404:cbc7dfcb0ce9 116 }
mbed_official 404:cbc7dfcb0ce9 117 if (rx != NC) {
mbed_official 404:cbc7dfcb0ce9 118 pin_mode(rx, PullUp);
mbed_official 404:cbc7dfcb0ce9 119 }
mbed_official 77:b5886236e6f0 120
mbed_official 76:aeb1df146756 121 // Configure UART
mbed_official 76:aeb1df146756 122 obj->baudrate = 9600;
mbed_official 340:28d1f895c6fe 123 obj->databits = UART_WORDLENGTH_8B;
mbed_official 340:28d1f895c6fe 124 obj->stopbits = UART_STOPBITS_1;
mbed_official 340:28d1f895c6fe 125 obj->parity = UART_PARITY_NONE;
mbed_official 216:577900467c9e 126
mbed_official 216:577900467c9e 127 obj->pin_tx = tx;
mbed_official 216:577900467c9e 128 obj->pin_rx = rx;
mbed_official 76:aeb1df146756 129
mbed_official 340:28d1f895c6fe 130 init_uart(obj);
mbed_official 76:aeb1df146756 131
mbed_official 76:aeb1df146756 132 // For stdio management
mbed_official 76:aeb1df146756 133 if (obj->uart == STDIO_UART) {
mbed_official 76:aeb1df146756 134 stdio_uart_inited = 1;
mbed_official 76:aeb1df146756 135 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 76:aeb1df146756 136 }
mbed_official 76:aeb1df146756 137 }
mbed_official 76:aeb1df146756 138
mbed_official 402:09075a3b15e3 139 void serial_free(serial_t *obj)
mbed_official 402:09075a3b15e3 140 {
mbed_official 216:577900467c9e 141 // Reset UART and disable clock
mbed_official 216:577900467c9e 142 if (obj->uart == UART_1) {
mbed_official 340:28d1f895c6fe 143 __USART1_FORCE_RESET();
mbed_official 340:28d1f895c6fe 144 __USART1_RELEASE_RESET();
mbed_official 340:28d1f895c6fe 145 __USART1_CLK_DISABLE();
mbed_official 216:577900467c9e 146 }
mbed_official 404:cbc7dfcb0ce9 147
mbed_official 216:577900467c9e 148 if (obj->uart == UART_2) {
mbed_official 340:28d1f895c6fe 149 __USART2_FORCE_RESET();
mbed_official 340:28d1f895c6fe 150 __USART2_RELEASE_RESET();
mbed_official 340:28d1f895c6fe 151 __USART2_CLK_DISABLE();
mbed_official 216:577900467c9e 152 }
mbed_official 216:577900467c9e 153
mbed_official 216:577900467c9e 154 // Configure GPIOs
mbed_official 340:28d1f895c6fe 155 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 340:28d1f895c6fe 156 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 216:577900467c9e 157
mbed_official 76:aeb1df146756 158 serial_irq_ids[obj->index] = 0;
mbed_official 76:aeb1df146756 159 }
mbed_official 76:aeb1df146756 160
mbed_official 402:09075a3b15e3 161 void serial_baud(serial_t *obj, int baudrate)
mbed_official 402:09075a3b15e3 162 {
mbed_official 76:aeb1df146756 163 obj->baudrate = baudrate;
mbed_official 340:28d1f895c6fe 164 init_uart(obj);
mbed_official 76:aeb1df146756 165 }
mbed_official 76:aeb1df146756 166
mbed_official 402:09075a3b15e3 167 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 402:09075a3b15e3 168 {
mbed_official 242:7074e42da0b2 169 if (data_bits == 9) {
mbed_official 340:28d1f895c6fe 170 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 171 } else {
mbed_official 340:28d1f895c6fe 172 obj->databits = UART_WORDLENGTH_8B;
mbed_official 76:aeb1df146756 173 }
mbed_official 76:aeb1df146756 174
mbed_official 76:aeb1df146756 175 switch (parity) {
mbed_official 216:577900467c9e 176 case ParityOdd:
mbed_official 216:577900467c9e 177 case ParityForced0:
mbed_official 340:28d1f895c6fe 178 obj->parity = UART_PARITY_ODD;
mbed_official 216:577900467c9e 179 break;
mbed_official 216:577900467c9e 180 case ParityEven:
mbed_official 216:577900467c9e 181 case ParityForced1:
mbed_official 340:28d1f895c6fe 182 obj->parity = UART_PARITY_EVEN;
mbed_official 216:577900467c9e 183 break;
mbed_official 216:577900467c9e 184 default: // ParityNone
mbed_official 340:28d1f895c6fe 185 obj->parity = UART_PARITY_NONE;
mbed_official 216:577900467c9e 186 break;
mbed_official 76:aeb1df146756 187 }
mbed_official 216:577900467c9e 188
mbed_official 76:aeb1df146756 189 if (stop_bits == 2) {
mbed_official 340:28d1f895c6fe 190 obj->stopbits = UART_STOPBITS_2;
mbed_official 216:577900467c9e 191 } else {
mbed_official 340:28d1f895c6fe 192 obj->stopbits = UART_STOPBITS_1;
mbed_official 76:aeb1df146756 193 }
mbed_official 76:aeb1df146756 194
mbed_official 340:28d1f895c6fe 195 init_uart(obj);
mbed_official 76:aeb1df146756 196 }
mbed_official 76:aeb1df146756 197
mbed_official 76:aeb1df146756 198 /******************************************************************************
mbed_official 76:aeb1df146756 199 * INTERRUPTS HANDLING
mbed_official 76:aeb1df146756 200 ******************************************************************************/
mbed_official 76:aeb1df146756 201
mbed_official 402:09075a3b15e3 202 static void uart_irq(UARTName name, int id)
mbed_official 402:09075a3b15e3 203 {
mbed_official 340:28d1f895c6fe 204 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 76:aeb1df146756 205 if (serial_irq_ids[id] != 0) {
mbed_official 340:28d1f895c6fe 206 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 76:aeb1df146756 207 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 340:28d1f895c6fe 208 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 76:aeb1df146756 209 }
mbed_official 340:28d1f895c6fe 210 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 76:aeb1df146756 211 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 340:28d1f895c6fe 212 volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
mbed_official 76:aeb1df146756 213 }
mbed_official 76:aeb1df146756 214 }
mbed_official 76:aeb1df146756 215 }
mbed_official 76:aeb1df146756 216
mbed_official 402:09075a3b15e3 217 static void uart1_irq(void)
mbed_official 402:09075a3b15e3 218 {
mbed_official 340:28d1f895c6fe 219 uart_irq(UART_1, 0);
mbed_official 216:577900467c9e 220 }
mbed_official 340:28d1f895c6fe 221
mbed_official 402:09075a3b15e3 222 static void uart2_irq(void)
mbed_official 402:09075a3b15e3 223 {
mbed_official 340:28d1f895c6fe 224 uart_irq(UART_2, 1);
mbed_official 216:577900467c9e 225 }
mbed_official 76:aeb1df146756 226
mbed_official 402:09075a3b15e3 227 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 402:09075a3b15e3 228 {
mbed_official 76:aeb1df146756 229 irq_handler = handler;
mbed_official 76:aeb1df146756 230 serial_irq_ids[obj->index] = id;
mbed_official 76:aeb1df146756 231 }
mbed_official 76:aeb1df146756 232
mbed_official 402:09075a3b15e3 233 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 402:09075a3b15e3 234 {
mbed_official 76:aeb1df146756 235 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 76:aeb1df146756 236 uint32_t vector = 0;
mbed_official 340:28d1f895c6fe 237
mbed_official 340:28d1f895c6fe 238 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 239
mbed_official 76:aeb1df146756 240 if (obj->uart == UART_1) {
mbed_official 216:577900467c9e 241 irq_n = USART1_IRQn;
mbed_official 216:577900467c9e 242 vector = (uint32_t)&uart1_irq;
mbed_official 76:aeb1df146756 243 }
mbed_official 216:577900467c9e 244
mbed_official 76:aeb1df146756 245 if (obj->uart == UART_2) {
mbed_official 216:577900467c9e 246 irq_n = USART2_IRQn;
mbed_official 216:577900467c9e 247 vector = (uint32_t)&uart2_irq;
mbed_official 76:aeb1df146756 248 }
mbed_official 216:577900467c9e 249
mbed_official 76:aeb1df146756 250 if (enable) {
mbed_official 216:577900467c9e 251
mbed_official 76:aeb1df146756 252 if (irq == RxIrq) {
mbed_official 340:28d1f895c6fe 253 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 216:577900467c9e 254 } else { // TxIrq
mbed_official 340:28d1f895c6fe 255 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 216:577900467c9e 256 }
mbed_official 216:577900467c9e 257
mbed_official 76:aeb1df146756 258 NVIC_SetVector(irq_n, vector);
mbed_official 76:aeb1df146756 259 NVIC_EnableIRQ(irq_n);
mbed_official 216:577900467c9e 260
mbed_official 76:aeb1df146756 261 } else { // disable
mbed_official 216:577900467c9e 262
mbed_official 76:aeb1df146756 263 int all_disabled = 0;
mbed_official 216:577900467c9e 264
mbed_official 76:aeb1df146756 265 if (irq == RxIrq) {
mbed_official 340:28d1f895c6fe 266 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 76:aeb1df146756 267 // Check if TxIrq is disabled too
mbed_official 340:28d1f895c6fe 268 if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1;
mbed_official 216:577900467c9e 269 } else { // TxIrq
mbed_official 340:28d1f895c6fe 270 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 76:aeb1df146756 271 // Check if RxIrq is disabled too
mbed_official 340:28d1f895c6fe 272 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 76:aeb1df146756 273 }
mbed_official 216:577900467c9e 274
mbed_official 76:aeb1df146756 275 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 216:577900467c9e 276
mbed_official 216:577900467c9e 277 }
mbed_official 76:aeb1df146756 278 }
mbed_official 76:aeb1df146756 279
mbed_official 76:aeb1df146756 280 /******************************************************************************
mbed_official 76:aeb1df146756 281 * READ/WRITE
mbed_official 76:aeb1df146756 282 ******************************************************************************/
mbed_official 76:aeb1df146756 283
mbed_official 402:09075a3b15e3 284 int serial_getc(serial_t *obj)
mbed_official 402:09075a3b15e3 285 {
mbed_official 340:28d1f895c6fe 286 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 287 while (!serial_readable(obj));
mbed_official 340:28d1f895c6fe 288 return (int)(uart->RDR & (uint16_t)0xFF);
mbed_official 76:aeb1df146756 289 }
mbed_official 76:aeb1df146756 290
mbed_official 402:09075a3b15e3 291 void serial_putc(serial_t *obj, int c)
mbed_official 402:09075a3b15e3 292 {
mbed_official 340:28d1f895c6fe 293 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 294 while (!serial_writable(obj));
mbed_official 340:28d1f895c6fe 295 uart->TDR = (uint32_t)(c & (uint16_t)0xFF);
mbed_official 76:aeb1df146756 296 }
mbed_official 76:aeb1df146756 297
mbed_official 402:09075a3b15e3 298 int serial_readable(serial_t *obj)
mbed_official 402:09075a3b15e3 299 {
mbed_official 76:aeb1df146756 300 int status;
mbed_official 340:28d1f895c6fe 301 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 302 // Check if data is received
mbed_official 340:28d1f895c6fe 303 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 304 return status;
mbed_official 76:aeb1df146756 305 }
mbed_official 76:aeb1df146756 306
mbed_official 402:09075a3b15e3 307 int serial_writable(serial_t *obj)
mbed_official 402:09075a3b15e3 308 {
mbed_official 76:aeb1df146756 309 int status;
mbed_official 340:28d1f895c6fe 310 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 311 // Check if data is transmitted
mbed_official 340:28d1f895c6fe 312 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 313 return status;
mbed_official 76:aeb1df146756 314 }
mbed_official 76:aeb1df146756 315
mbed_official 402:09075a3b15e3 316 void serial_clear(serial_t *obj)
mbed_official 402:09075a3b15e3 317 {
mbed_official 340:28d1f895c6fe 318 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 340:28d1f895c6fe 319 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 340:28d1f895c6fe 320 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 76:aeb1df146756 321 }
mbed_official 76:aeb1df146756 322
mbed_official 402:09075a3b15e3 323 void serial_pinout_tx(PinName tx)
mbed_official 402:09075a3b15e3 324 {
mbed_official 76:aeb1df146756 325 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 326 }
mbed_official 76:aeb1df146756 327
mbed_official 402:09075a3b15e3 328 void serial_break_set(serial_t *obj)
mbed_official 402:09075a3b15e3 329 {
mbed_official 340:28d1f895c6fe 330 // [TODO]
mbed_official 76:aeb1df146756 331 }
mbed_official 76:aeb1df146756 332
mbed_official 402:09075a3b15e3 333 void serial_break_clear(serial_t *obj)
mbed_official 402:09075a3b15e3 334 {
mbed_official 340:28d1f895c6fe 335 // [TODO]
mbed_official 76:aeb1df146756 336 }
mbed_official 166:cb4253f91ada 337
mbed_official 166:cb4253f91ada 338 #endif