long dao / mbed-src

Mbed for VNG board

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F072RB/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:
404:cbc7dfcb0ce9 
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 219:993c9b0acbcc 1 /* mbed Microcontroller Library
mbed_official 219:993c9b0acbcc 2 *******************************************************************************
mbed_official 219:993c9b0acbcc 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 219:993c9b0acbcc 4 * All rights reserved.
mbed_official 219:993c9b0acbcc 5 *
mbed_official 219:993c9b0acbcc 6 * Redistribution and use in source and binary forms, with or without
mbed_official 219:993c9b0acbcc 7 * modification, are permitted provided that the following conditions are met:
mbed_official 219:993c9b0acbcc 8 *
mbed_official 219:993c9b0acbcc 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 219:993c9b0acbcc 10 * this list of conditions and the following disclaimer.
mbed_official 219:993c9b0acbcc 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 219:993c9b0acbcc 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 219:993c9b0acbcc 13 * and/or other materials provided with the distribution.
mbed_official 219:993c9b0acbcc 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 219:993c9b0acbcc 15 * may be used to endorse or promote products derived from this software
mbed_official 219:993c9b0acbcc 16 * without specific prior written permission.
mbed_official 219:993c9b0acbcc 17 *
mbed_official 219:993c9b0acbcc 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 219:993c9b0acbcc 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 219:993c9b0acbcc 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 219:993c9b0acbcc 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 219:993c9b0acbcc 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 219:993c9b0acbcc 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 219:993c9b0acbcc 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 219:993c9b0acbcc 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 219:993c9b0acbcc 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 219:993c9b0acbcc 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 219:993c9b0acbcc 28 *******************************************************************************
mbed_official 219:993c9b0acbcc 29 */
mbed_official 239:8cadf13dff33 30 #include "mbed_assert.h"
mbed_official 219:993c9b0acbcc 31 #include "serial_api.h"
mbed_official 219:993c9b0acbcc 32
mbed_official 219:993c9b0acbcc 33 #if DEVICE_SERIAL
mbed_official 219:993c9b0acbcc 34
mbed_official 219:993c9b0acbcc 35 #include "cmsis.h"
mbed_official 219:993c9b0acbcc 36 #include "pinmap.h"
mbed_official 219:993c9b0acbcc 37 #include <string.h>
mbed_official 414:4ec4c5b614b0 38 #include "PeripheralPins.h"
mbed_official 219:993c9b0acbcc 39
mbed_official 219:993c9b0acbcc 40 #define UART_NUM (4)
mbed_official 219:993c9b0acbcc 41
mbed_official 219:993c9b0acbcc 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0};
mbed_official 219:993c9b0acbcc 43
mbed_official 219:993c9b0acbcc 44 static uart_irq_handler irq_handler;
mbed_official 219:993c9b0acbcc 45
mbed_official 219:993c9b0acbcc 46 UART_HandleTypeDef UartHandle;
mbed_official 219:993c9b0acbcc 47
mbed_official 219:993c9b0acbcc 48 int stdio_uart_inited = 0;
mbed_official 219:993c9b0acbcc 49 serial_t stdio_uart;
mbed_official 219:993c9b0acbcc 50
mbed_official 402:09075a3b15e3 51 static void init_uart(serial_t *obj)
mbed_official 402:09075a3b15e3 52 {
mbed_official 219:993c9b0acbcc 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 219:993c9b0acbcc 54
mbed_official 219:993c9b0acbcc 55 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 219:993c9b0acbcc 56 UartHandle.Init.WordLength = obj->databits;
mbed_official 219:993c9b0acbcc 57 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 219:993c9b0acbcc 58 UartHandle.Init.Parity = obj->parity;
mbed_official 219:993c9b0acbcc 59 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 219:993c9b0acbcc 60
mbed_official 219:993c9b0acbcc 61 if (obj->pin_rx == NC) {
mbed_official 219:993c9b0acbcc 62 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 219:993c9b0acbcc 63 } else if (obj->pin_tx == NC) {
mbed_official 219:993c9b0acbcc 64 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 219:993c9b0acbcc 65 } else {
mbed_official 219:993c9b0acbcc 66 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 219:993c9b0acbcc 67 }
mbed_official 219:993c9b0acbcc 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 219:993c9b0acbcc 73 HAL_UART_Init(&UartHandle);
mbed_official 219:993c9b0acbcc 74 }
mbed_official 219:993c9b0acbcc 75
mbed_official 402:09075a3b15e3 76 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 402:09075a3b15e3 77 {
mbed_official 219:993c9b0acbcc 78 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 219:993c9b0acbcc 79 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 219:993c9b0acbcc 80 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 219:993c9b0acbcc 81
mbed_official 219:993c9b0acbcc 82 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 219:993c9b0acbcc 83 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 239:8cadf13dff33 84 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 219:993c9b0acbcc 85
mbed_official 219:993c9b0acbcc 86 // Enable USART clock
mbed_official 219:993c9b0acbcc 87 if (obj->uart == UART_1) {
mbed_official 219:993c9b0acbcc 88 __USART1_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 89 obj->index = 0;
mbed_official 219:993c9b0acbcc 90 }
mbed_official 404:cbc7dfcb0ce9 91
mbed_official 219:993c9b0acbcc 92 if (obj->uart == UART_2) {
mbed_official 219:993c9b0acbcc 93 __USART2_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 94 obj->index = 1;
mbed_official 219:993c9b0acbcc 95 }
mbed_official 219:993c9b0acbcc 96
mbed_official 219:993c9b0acbcc 97 if (obj->uart == UART_3) {
mbed_official 219:993c9b0acbcc 98 __USART3_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 99 obj->index = 2;
mbed_official 219:993c9b0acbcc 100 }
mbed_official 404:cbc7dfcb0ce9 101
mbed_official 219:993c9b0acbcc 102 if (obj->uart == UART_4) {
mbed_official 219:993c9b0acbcc 103 __USART4_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 104 obj->index = 3;
mbed_official 219:993c9b0acbcc 105 }
mbed_official 219:993c9b0acbcc 106
mbed_official 219:993c9b0acbcc 107 // Configure the UART pins
mbed_official 219:993c9b0acbcc 108 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 219:993c9b0acbcc 109 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 339:40bd4701f3e2 110 if (tx != NC) {
mbed_official 339:40bd4701f3e2 111 pin_mode(tx, PullUp);
mbed_official 339:40bd4701f3e2 112 }
mbed_official 339:40bd4701f3e2 113 if (rx != NC) {
mbed_official 339:40bd4701f3e2 114 pin_mode(rx, PullUp);
mbed_official 339:40bd4701f3e2 115 }
mbed_official 219:993c9b0acbcc 116
mbed_official 219:993c9b0acbcc 117 // Configure UART
mbed_official 219:993c9b0acbcc 118 obj->baudrate = 9600;
mbed_official 219:993c9b0acbcc 119 obj->databits = UART_WORDLENGTH_8B;
mbed_official 219:993c9b0acbcc 120 obj->stopbits = UART_STOPBITS_1;
mbed_official 219:993c9b0acbcc 121 obj->parity = UART_PARITY_NONE;
mbed_official 219:993c9b0acbcc 122
mbed_official 219:993c9b0acbcc 123 obj->pin_tx = tx;
mbed_official 219:993c9b0acbcc 124 obj->pin_rx = rx;
mbed_official 219:993c9b0acbcc 125
mbed_official 219:993c9b0acbcc 126 init_uart(obj);
mbed_official 219:993c9b0acbcc 127
mbed_official 219:993c9b0acbcc 128 // For stdio management
mbed_official 219:993c9b0acbcc 129 if (obj->uart == STDIO_UART) {
mbed_official 219:993c9b0acbcc 130 stdio_uart_inited = 1;
mbed_official 219:993c9b0acbcc 131 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 219:993c9b0acbcc 132 }
mbed_official 219:993c9b0acbcc 133 }
mbed_official 219:993c9b0acbcc 134
mbed_official 402:09075a3b15e3 135 void serial_free(serial_t *obj)
mbed_official 402:09075a3b15e3 136 {
mbed_official 219:993c9b0acbcc 137 // Reset UART and disable clock
mbed_official 219:993c9b0acbcc 138 if (obj->uart == UART_1) {
mbed_official 219:993c9b0acbcc 139 __USART1_FORCE_RESET();
mbed_official 219:993c9b0acbcc 140 __USART1_RELEASE_RESET();
mbed_official 219:993c9b0acbcc 141 __USART1_CLK_DISABLE();
mbed_official 219:993c9b0acbcc 142 }
mbed_official 404:cbc7dfcb0ce9 143
mbed_official 219:993c9b0acbcc 144 if (obj->uart == UART_2) {
mbed_official 219:993c9b0acbcc 145 __USART2_FORCE_RESET();
mbed_official 219:993c9b0acbcc 146 __USART2_RELEASE_RESET();
mbed_official 219:993c9b0acbcc 147 __USART2_CLK_DISABLE();
mbed_official 219:993c9b0acbcc 148 }
mbed_official 404:cbc7dfcb0ce9 149
mbed_official 219:993c9b0acbcc 150 if (obj->uart == UART_3) {
mbed_official 219:993c9b0acbcc 151 __USART3_FORCE_RESET();
mbed_official 219:993c9b0acbcc 152 __USART3_RELEASE_RESET();
mbed_official 219:993c9b0acbcc 153 __USART3_CLK_DISABLE();
mbed_official 219:993c9b0acbcc 154 }
mbed_official 404:cbc7dfcb0ce9 155
mbed_official 219:993c9b0acbcc 156 if (obj->uart == UART_4) {
mbed_official 219:993c9b0acbcc 157 __USART4_FORCE_RESET();
mbed_official 219:993c9b0acbcc 158 __USART4_RELEASE_RESET();
mbed_official 219:993c9b0acbcc 159 __USART4_CLK_DISABLE();
mbed_official 219:993c9b0acbcc 160 }
mbed_official 219:993c9b0acbcc 161
mbed_official 219:993c9b0acbcc 162 // Configure GPIOs
mbed_official 219:993c9b0acbcc 163 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 219:993c9b0acbcc 164 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 219:993c9b0acbcc 165
mbed_official 219:993c9b0acbcc 166 serial_irq_ids[obj->index] = 0;
mbed_official 219:993c9b0acbcc 167 }
mbed_official 219:993c9b0acbcc 168
mbed_official 402:09075a3b15e3 169 void serial_baud(serial_t *obj, int baudrate)
mbed_official 402:09075a3b15e3 170 {
mbed_official 219:993c9b0acbcc 171 obj->baudrate = baudrate;
mbed_official 219:993c9b0acbcc 172 init_uart(obj);
mbed_official 219:993c9b0acbcc 173 }
mbed_official 219:993c9b0acbcc 174
mbed_official 402:09075a3b15e3 175 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 402:09075a3b15e3 176 {
mbed_official 242:7074e42da0b2 177 if (data_bits == 9) {
mbed_official 242:7074e42da0b2 178 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 179 } else {
mbed_official 219:993c9b0acbcc 180 obj->databits = UART_WORDLENGTH_8B;
mbed_official 219:993c9b0acbcc 181 }
mbed_official 219:993c9b0acbcc 182
mbed_official 219:993c9b0acbcc 183 switch (parity) {
mbed_official 219:993c9b0acbcc 184 case ParityOdd:
mbed_official 219:993c9b0acbcc 185 case ParityForced0:
mbed_official 219:993c9b0acbcc 186 obj->parity = UART_PARITY_ODD;
mbed_official 219:993c9b0acbcc 187 break;
mbed_official 219:993c9b0acbcc 188 case ParityEven:
mbed_official 219:993c9b0acbcc 189 case ParityForced1:
mbed_official 219:993c9b0acbcc 190 obj->parity = UART_PARITY_EVEN;
mbed_official 219:993c9b0acbcc 191 break;
mbed_official 219:993c9b0acbcc 192 default: // ParityNone
mbed_official 219:993c9b0acbcc 193 obj->parity = UART_PARITY_NONE;
mbed_official 219:993c9b0acbcc 194 break;
mbed_official 219:993c9b0acbcc 195 }
mbed_official 219:993c9b0acbcc 196
mbed_official 219:993c9b0acbcc 197 if (stop_bits == 2) {
mbed_official 219:993c9b0acbcc 198 obj->stopbits = UART_STOPBITS_2;
mbed_official 219:993c9b0acbcc 199 } else {
mbed_official 219:993c9b0acbcc 200 obj->stopbits = UART_STOPBITS_1;
mbed_official 219:993c9b0acbcc 201 }
mbed_official 219:993c9b0acbcc 202
mbed_official 219:993c9b0acbcc 203 init_uart(obj);
mbed_official 219:993c9b0acbcc 204 }
mbed_official 219:993c9b0acbcc 205
mbed_official 219:993c9b0acbcc 206 /******************************************************************************
mbed_official 219:993c9b0acbcc 207 * INTERRUPTS HANDLING
mbed_official 219:993c9b0acbcc 208 ******************************************************************************/
mbed_official 219:993c9b0acbcc 209
mbed_official 402:09075a3b15e3 210 static void uart_irq(UARTName name, int id)
mbed_official 402:09075a3b15e3 211 {
mbed_official 219:993c9b0acbcc 212 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 219:993c9b0acbcc 213 if (serial_irq_ids[id] != 0) {
mbed_official 219:993c9b0acbcc 214 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 219:993c9b0acbcc 215 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 219:993c9b0acbcc 216 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 219:993c9b0acbcc 217 }
mbed_official 219:993c9b0acbcc 218 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 219:993c9b0acbcc 219 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 293:2a9cf2ed1474 220 volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
mbed_official 219:993c9b0acbcc 221 }
mbed_official 219:993c9b0acbcc 222 }
mbed_official 219:993c9b0acbcc 223 }
mbed_official 219:993c9b0acbcc 224
mbed_official 402:09075a3b15e3 225 static void uart1_irq(void)
mbed_official 402:09075a3b15e3 226 {
mbed_official 219:993c9b0acbcc 227 uart_irq(UART_1, 0);
mbed_official 219:993c9b0acbcc 228 }
mbed_official 219:993c9b0acbcc 229
mbed_official 402:09075a3b15e3 230 static void uart2_irq(void)
mbed_official 402:09075a3b15e3 231 {
mbed_official 219:993c9b0acbcc 232 uart_irq(UART_2, 1);
mbed_official 219:993c9b0acbcc 233 }
mbed_official 219:993c9b0acbcc 234
mbed_official 402:09075a3b15e3 235 static void uart3_irq(void)
mbed_official 402:09075a3b15e3 236 {
mbed_official 219:993c9b0acbcc 237 uart_irq(UART_3, 2);
mbed_official 219:993c9b0acbcc 238 }
mbed_official 219:993c9b0acbcc 239
mbed_official 402:09075a3b15e3 240 static void uart4_irq(void)
mbed_official 402:09075a3b15e3 241 {
mbed_official 219:993c9b0acbcc 242 uart_irq(UART_4, 3);
mbed_official 219:993c9b0acbcc 243 }
mbed_official 219:993c9b0acbcc 244
mbed_official 402:09075a3b15e3 245 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 402:09075a3b15e3 246 {
mbed_official 219:993c9b0acbcc 247 irq_handler = handler;
mbed_official 219:993c9b0acbcc 248 serial_irq_ids[obj->index] = id;
mbed_official 219:993c9b0acbcc 249 }
mbed_official 219:993c9b0acbcc 250
mbed_official 402:09075a3b15e3 251 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 402:09075a3b15e3 252 {
mbed_official 219:993c9b0acbcc 253 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 219:993c9b0acbcc 254 uint32_t vector = 0;
mbed_official 219:993c9b0acbcc 255
mbed_official 219:993c9b0acbcc 256 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 219:993c9b0acbcc 257
mbed_official 219:993c9b0acbcc 258 if (obj->uart == UART_1) {
mbed_official 219:993c9b0acbcc 259 irq_n = USART1_IRQn;
mbed_official 219:993c9b0acbcc 260 vector = (uint32_t)&uart1_irq;
mbed_official 219:993c9b0acbcc 261 }
mbed_official 219:993c9b0acbcc 262
mbed_official 219:993c9b0acbcc 263 if (obj->uart == UART_2) {
mbed_official 219:993c9b0acbcc 264 irq_n = USART2_IRQn;
mbed_official 219:993c9b0acbcc 265 vector = (uint32_t)&uart2_irq;
mbed_official 219:993c9b0acbcc 266 }
mbed_official 219:993c9b0acbcc 267
mbed_official 219:993c9b0acbcc 268 if (obj->uart == UART_3) {
mbed_official 219:993c9b0acbcc 269 irq_n = USART3_4_IRQn;
mbed_official 219:993c9b0acbcc 270 vector = (uint32_t)&uart3_irq;
mbed_official 219:993c9b0acbcc 271 }
mbed_official 219:993c9b0acbcc 272
mbed_official 219:993c9b0acbcc 273 if (obj->uart == UART_4) {
mbed_official 219:993c9b0acbcc 274 irq_n = USART3_4_IRQn;
mbed_official 219:993c9b0acbcc 275 vector = (uint32_t)&uart4_irq;
mbed_official 219:993c9b0acbcc 276 }
mbed_official 219:993c9b0acbcc 277
mbed_official 219:993c9b0acbcc 278 if (enable) {
mbed_official 219:993c9b0acbcc 279
mbed_official 219:993c9b0acbcc 280 if (irq == RxIrq) {
mbed_official 219:993c9b0acbcc 281 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 219:993c9b0acbcc 282 } else { // TxIrq
mbed_official 219:993c9b0acbcc 283 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 219:993c9b0acbcc 284 }
mbed_official 219:993c9b0acbcc 285
mbed_official 219:993c9b0acbcc 286 NVIC_SetVector(irq_n, vector);
mbed_official 219:993c9b0acbcc 287 NVIC_EnableIRQ(irq_n);
mbed_official 219:993c9b0acbcc 288
mbed_official 219:993c9b0acbcc 289 } else { // disable
mbed_official 219:993c9b0acbcc 290
mbed_official 219:993c9b0acbcc 291 int all_disabled = 0;
mbed_official 219:993c9b0acbcc 292
mbed_official 219:993c9b0acbcc 293 if (irq == RxIrq) {
mbed_official 219:993c9b0acbcc 294 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 219:993c9b0acbcc 295 // Check if TxIrq is disabled too
mbed_official 293:2a9cf2ed1474 296 if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1;
mbed_official 219:993c9b0acbcc 297 } else { // TxIrq
mbed_official 293:2a9cf2ed1474 298 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 219:993c9b0acbcc 299 // Check if RxIrq is disabled too
mbed_official 219:993c9b0acbcc 300 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 219:993c9b0acbcc 301 }
mbed_official 219:993c9b0acbcc 302
mbed_official 219:993c9b0acbcc 303 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 219:993c9b0acbcc 304
mbed_official 219:993c9b0acbcc 305 }
mbed_official 219:993c9b0acbcc 306 }
mbed_official 219:993c9b0acbcc 307
mbed_official 219:993c9b0acbcc 308 /******************************************************************************
mbed_official 219:993c9b0acbcc 309 * READ/WRITE
mbed_official 219:993c9b0acbcc 310 ******************************************************************************/
mbed_official 219:993c9b0acbcc 311
mbed_official 402:09075a3b15e3 312 int serial_getc(serial_t *obj)
mbed_official 402:09075a3b15e3 313 {
mbed_official 219:993c9b0acbcc 314 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 219:993c9b0acbcc 315 while (!serial_readable(obj));
mbed_official 219:993c9b0acbcc 316 return (int)(uart->RDR & (uint16_t)0xFF);
mbed_official 219:993c9b0acbcc 317 }
mbed_official 219:993c9b0acbcc 318
mbed_official 402:09075a3b15e3 319 void serial_putc(serial_t *obj, int c)
mbed_official 402:09075a3b15e3 320 {
mbed_official 219:993c9b0acbcc 321 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 219:993c9b0acbcc 322 while (!serial_writable(obj));
mbed_official 219:993c9b0acbcc 323 uart->TDR = (uint32_t)(c & (uint16_t)0xFF);
mbed_official 219:993c9b0acbcc 324 }
mbed_official 219:993c9b0acbcc 325
mbed_official 402:09075a3b15e3 326 int serial_readable(serial_t *obj)
mbed_official 402:09075a3b15e3 327 {
mbed_official 219:993c9b0acbcc 328 int status;
mbed_official 219:993c9b0acbcc 329 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 219:993c9b0acbcc 330 // Check if data is received
mbed_official 219:993c9b0acbcc 331 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 219:993c9b0acbcc 332 return status;
mbed_official 219:993c9b0acbcc 333 }
mbed_official 219:993c9b0acbcc 334
mbed_official 402:09075a3b15e3 335 int serial_writable(serial_t *obj)
mbed_official 402:09075a3b15e3 336 {
mbed_official 219:993c9b0acbcc 337 int status;
mbed_official 219:993c9b0acbcc 338 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 219:993c9b0acbcc 339 // Check if data is transmitted
mbed_official 219:993c9b0acbcc 340 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 219:993c9b0acbcc 341 return status;
mbed_official 219:993c9b0acbcc 342 }
mbed_official 219:993c9b0acbcc 343
mbed_official 402:09075a3b15e3 344 void serial_clear(serial_t *obj)
mbed_official 402:09075a3b15e3 345 {
mbed_official 219:993c9b0acbcc 346 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 293:2a9cf2ed1474 347 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 293:2a9cf2ed1474 348 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 219:993c9b0acbcc 349 }
mbed_official 219:993c9b0acbcc 350
mbed_official 402:09075a3b15e3 351 void serial_pinout_tx(PinName tx)
mbed_official 402:09075a3b15e3 352 {
mbed_official 219:993c9b0acbcc 353 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 219:993c9b0acbcc 354 }
mbed_official 219:993c9b0acbcc 355
mbed_official 402:09075a3b15e3 356 void serial_break_set(serial_t *obj)
mbed_official 402:09075a3b15e3 357 {
mbed_official 219:993c9b0acbcc 358 // [TODO]
mbed_official 219:993c9b0acbcc 359 }
mbed_official 219:993c9b0acbcc 360
mbed_official 402:09075a3b15e3 361 void serial_break_clear(serial_t *obj)
mbed_official 402:09075a3b15e3 362 {
mbed_official 219:993c9b0acbcc 363 // [TODO]
mbed_official 219:993c9b0acbcc 364 }
mbed_official 219:993c9b0acbcc 365
mbed_official 219:993c9b0acbcc 366 #endif