marcus chiou / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_STM32F3/serial_api.c@634:ac7d6880524d, 2015-09-28 (annotated)

Committer:
mbed_official
Date:
Mon Sep 28 20:15:09 2015 +0100
Revision:
634:ac7d6880524d
Parent:
632:7687fb9c4f91 
Synchronized with git revision 9b7d23d47153c298a6d24de9a415202705889d11



Full URL: https://github.com/mbedmicro/mbed/commit/9b7d23d47153c298a6d24de9a415202705889d11/



Revert "[NUCLEO_F303K8] add support of the STM32F303K8"

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 508:4f5903e025e6 1 /* mbed Microcontroller Library
mbed_official 508:4f5903e025e6 2 *******************************************************************************
mbed_official 508:4f5903e025e6 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 508:4f5903e025e6 4 * All rights reserved.
mbed_official 508:4f5903e025e6 5 *
mbed_official 508:4f5903e025e6 6 * Redistribution and use in source and binary forms, with or without
mbed_official 508:4f5903e025e6 7 * modification, are permitted provided that the following conditions are met:
mbed_official 508:4f5903e025e6 8 *
mbed_official 508:4f5903e025e6 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 508:4f5903e025e6 10 * this list of conditions and the following disclaimer.
mbed_official 508:4f5903e025e6 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 508:4f5903e025e6 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 508:4f5903e025e6 13 * and/or other materials provided with the distribution.
mbed_official 508:4f5903e025e6 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 508:4f5903e025e6 15 * may be used to endorse or promote products derived from this software
mbed_official 508:4f5903e025e6 16 * without specific prior written permission.
mbed_official 508:4f5903e025e6 17 *
mbed_official 508:4f5903e025e6 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 508:4f5903e025e6 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 508:4f5903e025e6 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 508:4f5903e025e6 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 508:4f5903e025e6 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 508:4f5903e025e6 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 508:4f5903e025e6 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 508:4f5903e025e6 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 508:4f5903e025e6 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 508:4f5903e025e6 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 508:4f5903e025e6 28 *******************************************************************************
mbed_official 508:4f5903e025e6 29 */
mbed_official 508:4f5903e025e6 30 #include "mbed_assert.h"
mbed_official 508:4f5903e025e6 31 #include "serial_api.h"
mbed_official 508:4f5903e025e6 32
mbed_official 508:4f5903e025e6 33 #if DEVICE_SERIAL
mbed_official 508:4f5903e025e6 34
mbed_official 508:4f5903e025e6 35 #include "cmsis.h"
mbed_official 508:4f5903e025e6 36 #include "pinmap.h"
mbed_official 508:4f5903e025e6 37 #include <string.h>
mbed_official 508:4f5903e025e6 38 #include "PeripheralPins.h"
mbed_official 508:4f5903e025e6 39
mbed_official 508:4f5903e025e6 40 #define UART_NUM (5)
mbed_official 508:4f5903e025e6 41
mbed_official 508:4f5903e025e6 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0};
mbed_official 508:4f5903e025e6 43
mbed_official 508:4f5903e025e6 44 static uart_irq_handler irq_handler;
mbed_official 508:4f5903e025e6 45
mbed_official 508:4f5903e025e6 46 UART_HandleTypeDef UartHandle;
mbed_official 508:4f5903e025e6 47
mbed_official 508:4f5903e025e6 48 int stdio_uart_inited = 0;
mbed_official 508:4f5903e025e6 49 serial_t stdio_uart;
mbed_official 508:4f5903e025e6 50
mbed_official 508:4f5903e025e6 51 static void init_uart(serial_t *obj)
mbed_official 508:4f5903e025e6 52 {
mbed_official 508:4f5903e025e6 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 54
mbed_official 508:4f5903e025e6 55 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 508:4f5903e025e6 56 UartHandle.Init.WordLength = obj->databits;
mbed_official 508:4f5903e025e6 57 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 508:4f5903e025e6 58 UartHandle.Init.Parity = obj->parity;
mbed_official 508:4f5903e025e6 59 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 508:4f5903e025e6 60
mbed_official 508:4f5903e025e6 61 if (obj->pin_rx == NC) {
mbed_official 508:4f5903e025e6 62 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 508:4f5903e025e6 63 } else if (obj->pin_tx == NC) {
mbed_official 508:4f5903e025e6 64 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 508:4f5903e025e6 65 } else {
mbed_official 508:4f5903e025e6 66 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 508:4f5903e025e6 67 }
mbed_official 508:4f5903e025e6 68
mbed_official 508:4f5903e025e6 69 // Disable the reception overrun detection
mbed_official 508:4f5903e025e6 70 UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT;
mbed_official 508:4f5903e025e6 71 UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE;
mbed_official 508:4f5903e025e6 72
mbed_official 508:4f5903e025e6 73 HAL_UART_Init(&UartHandle);
mbed_official 508:4f5903e025e6 74 }
mbed_official 508:4f5903e025e6 75
mbed_official 508:4f5903e025e6 76 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 508:4f5903e025e6 77 {
mbed_official 508:4f5903e025e6 78 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 508:4f5903e025e6 79 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 508:4f5903e025e6 80 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 508:4f5903e025e6 81
mbed_official 508:4f5903e025e6 82 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 508:4f5903e025e6 83 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 508:4f5903e025e6 84 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 508:4f5903e025e6 85
mbed_official 508:4f5903e025e6 86 // Enable USART clock + switch to SystemClock
mbed_official 508:4f5903e025e6 87 if (obj->uart == UART_1) {
mbed_official 508:4f5903e025e6 88 __USART1_CLK_ENABLE();
mbed_official 508:4f5903e025e6 89 __HAL_RCC_USART1_CONFIG(RCC_USART1CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 90 obj->index = 0;
mbed_official 508:4f5903e025e6 91 }
mbed_official 508:4f5903e025e6 92 if (obj->uart == UART_2) {
mbed_official 508:4f5903e025e6 93 __USART2_CLK_ENABLE();
mbed_official 508:4f5903e025e6 94 __HAL_RCC_USART2_CONFIG(RCC_USART2CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 95 obj->index = 1;
mbed_official 508:4f5903e025e6 96 }
mbed_official 508:4f5903e025e6 97 if (obj->uart == UART_3) {
mbed_official 508:4f5903e025e6 98 __USART3_CLK_ENABLE();
mbed_official 508:4f5903e025e6 99 __HAL_RCC_USART3_CONFIG(RCC_USART3CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 100 obj->index = 2;
mbed_official 508:4f5903e025e6 101 }
mbed_official 508:4f5903e025e6 102 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 103 if (obj->uart == UART_4) {
mbed_official 508:4f5903e025e6 104 __UART4_CLK_ENABLE();
mbed_official 508:4f5903e025e6 105 __HAL_RCC_UART4_CONFIG(RCC_UART4CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 106 obj->index = 3;
mbed_official 508:4f5903e025e6 107 }
mbed_official 508:4f5903e025e6 108 #endif
mbed_official 508:4f5903e025e6 109 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 110 if (obj->uart == UART_5) {
mbed_official 508:4f5903e025e6 111 __UART5_CLK_ENABLE();
mbed_official 508:4f5903e025e6 112 __HAL_RCC_UART5_CONFIG(RCC_UART5CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 113 obj->index = 4;
mbed_official 508:4f5903e025e6 114 }
mbed_official 508:4f5903e025e6 115 #endif
mbed_official 508:4f5903e025e6 116
mbed_official 508:4f5903e025e6 117 // Configure the UART pins
mbed_official 508:4f5903e025e6 118 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 508:4f5903e025e6 119 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 508:4f5903e025e6 120 if (tx != NC) {
mbed_official 508:4f5903e025e6 121 pin_mode(tx, PullUp);
mbed_official 508:4f5903e025e6 122 }
mbed_official 508:4f5903e025e6 123 if (rx != NC) {
mbed_official 508:4f5903e025e6 124 pin_mode(rx, PullUp);
mbed_official 508:4f5903e025e6 125 }
mbed_official 508:4f5903e025e6 126
mbed_official 508:4f5903e025e6 127 // Configure UART
mbed_official 508:4f5903e025e6 128 obj->baudrate = 9600;
mbed_official 508:4f5903e025e6 129 obj->databits = UART_WORDLENGTH_8B;
mbed_official 508:4f5903e025e6 130 obj->stopbits = UART_STOPBITS_1;
mbed_official 508:4f5903e025e6 131 obj->parity = UART_PARITY_NONE;
mbed_official 508:4f5903e025e6 132
mbed_official 508:4f5903e025e6 133 obj->pin_tx = tx;
mbed_official 508:4f5903e025e6 134 obj->pin_rx = rx;
mbed_official 508:4f5903e025e6 135
mbed_official 508:4f5903e025e6 136 init_uart(obj);
mbed_official 508:4f5903e025e6 137
mbed_official 508:4f5903e025e6 138 // For stdio management
mbed_official 508:4f5903e025e6 139 if (obj->uart == STDIO_UART) {
mbed_official 508:4f5903e025e6 140 stdio_uart_inited = 1;
mbed_official 508:4f5903e025e6 141 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 508:4f5903e025e6 142 }
mbed_official 508:4f5903e025e6 143 }
mbed_official 508:4f5903e025e6 144
mbed_official 508:4f5903e025e6 145 void serial_free(serial_t *obj)
mbed_official 508:4f5903e025e6 146 {
mbed_official 508:4f5903e025e6 147 // Reset UART and disable clock
mbed_official 508:4f5903e025e6 148 if (obj->uart == UART_1) {
mbed_official 508:4f5903e025e6 149 __USART1_FORCE_RESET();
mbed_official 508:4f5903e025e6 150 __USART1_RELEASE_RESET();
mbed_official 508:4f5903e025e6 151 __USART1_CLK_DISABLE();
mbed_official 508:4f5903e025e6 152 }
mbed_official 508:4f5903e025e6 153 if (obj->uart == UART_2) {
mbed_official 508:4f5903e025e6 154 __USART2_FORCE_RESET();
mbed_official 508:4f5903e025e6 155 __USART2_RELEASE_RESET();
mbed_official 508:4f5903e025e6 156 __USART2_CLK_DISABLE();
mbed_official 508:4f5903e025e6 157 }
mbed_official 508:4f5903e025e6 158 if (obj->uart == UART_3) {
mbed_official 508:4f5903e025e6 159 __USART3_FORCE_RESET();
mbed_official 508:4f5903e025e6 160 __USART3_RELEASE_RESET();
mbed_official 508:4f5903e025e6 161 __USART3_CLK_DISABLE();
mbed_official 508:4f5903e025e6 162 }
mbed_official 508:4f5903e025e6 163 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 164 if (obj->uart == UART_4) {
mbed_official 508:4f5903e025e6 165 __UART4_FORCE_RESET();
mbed_official 508:4f5903e025e6 166 __UART4_RELEASE_RESET();
mbed_official 508:4f5903e025e6 167 __UART4_CLK_DISABLE();
mbed_official 508:4f5903e025e6 168 }
mbed_official 508:4f5903e025e6 169 #endif
mbed_official 508:4f5903e025e6 170 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 171 if (obj->uart == UART_5) {
mbed_official 508:4f5903e025e6 172 __UART5_FORCE_RESET();
mbed_official 508:4f5903e025e6 173 __UART5_RELEASE_RESET();
mbed_official 508:4f5903e025e6 174 __UART5_CLK_DISABLE();
mbed_official 508:4f5903e025e6 175 }
mbed_official 508:4f5903e025e6 176 #endif
mbed_official 508:4f5903e025e6 177
mbed_official 508:4f5903e025e6 178 // Configure GPIOs
mbed_official 508:4f5903e025e6 179 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 508:4f5903e025e6 180 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 508:4f5903e025e6 181
mbed_official 508:4f5903e025e6 182 serial_irq_ids[obj->index] = 0;
mbed_official 508:4f5903e025e6 183 }
mbed_official 508:4f5903e025e6 184
mbed_official 508:4f5903e025e6 185 void serial_baud(serial_t *obj, int baudrate)
mbed_official 508:4f5903e025e6 186 {
mbed_official 508:4f5903e025e6 187 obj->baudrate = baudrate;
mbed_official 508:4f5903e025e6 188 init_uart(obj);
mbed_official 508:4f5903e025e6 189 }
mbed_official 508:4f5903e025e6 190
mbed_official 508:4f5903e025e6 191 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 508:4f5903e025e6 192 {
mbed_official 508:4f5903e025e6 193 if (data_bits == 9) {
mbed_official 508:4f5903e025e6 194 obj->databits = UART_WORDLENGTH_9B;
mbed_official 508:4f5903e025e6 195 } else {
mbed_official 508:4f5903e025e6 196 obj->databits = UART_WORDLENGTH_8B;
mbed_official 508:4f5903e025e6 197 }
mbed_official 508:4f5903e025e6 198
mbed_official 508:4f5903e025e6 199 switch (parity) {
mbed_official 508:4f5903e025e6 200 case ParityOdd:
mbed_official 508:4f5903e025e6 201 case ParityForced0:
mbed_official 508:4f5903e025e6 202 obj->parity = UART_PARITY_ODD;
mbed_official 508:4f5903e025e6 203 break;
mbed_official 508:4f5903e025e6 204 case ParityEven:
mbed_official 508:4f5903e025e6 205 case ParityForced1:
mbed_official 508:4f5903e025e6 206 obj->parity = UART_PARITY_EVEN;
mbed_official 508:4f5903e025e6 207 break;
mbed_official 508:4f5903e025e6 208 default: // ParityNone
mbed_official 508:4f5903e025e6 209 obj->parity = UART_PARITY_NONE;
mbed_official 508:4f5903e025e6 210 break;
mbed_official 508:4f5903e025e6 211 }
mbed_official 508:4f5903e025e6 212
mbed_official 508:4f5903e025e6 213 if (stop_bits == 2) {
mbed_official 508:4f5903e025e6 214 obj->stopbits = UART_STOPBITS_2;
mbed_official 508:4f5903e025e6 215 } else {
mbed_official 508:4f5903e025e6 216 obj->stopbits = UART_STOPBITS_1;
mbed_official 508:4f5903e025e6 217 }
mbed_official 508:4f5903e025e6 218
mbed_official 508:4f5903e025e6 219 init_uart(obj);
mbed_official 508:4f5903e025e6 220 }
mbed_official 508:4f5903e025e6 221
mbed_official 508:4f5903e025e6 222 /******************************************************************************
mbed_official 508:4f5903e025e6 223 * INTERRUPTS HANDLING
mbed_official 508:4f5903e025e6 224 ******************************************************************************/
mbed_official 508:4f5903e025e6 225
mbed_official 508:4f5903e025e6 226 static void uart_irq(UARTName name, int id)
mbed_official 508:4f5903e025e6 227 {
mbed_official 508:4f5903e025e6 228 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 508:4f5903e025e6 229 if (serial_irq_ids[id] != 0) {
mbed_official 508:4f5903e025e6 230 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 508:4f5903e025e6 231 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 508:4f5903e025e6 232 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 508:4f5903e025e6 233 }
mbed_official 508:4f5903e025e6 234 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 508:4f5903e025e6 235 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 508:4f5903e025e6 236 volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
mbed_official 508:4f5903e025e6 237 }
mbed_official 508:4f5903e025e6 238 }
mbed_official 508:4f5903e025e6 239 }
mbed_official 508:4f5903e025e6 240
mbed_official 508:4f5903e025e6 241 static void uart1_irq(void)
mbed_official 508:4f5903e025e6 242 {
mbed_official 508:4f5903e025e6 243 uart_irq(UART_1, 0);
mbed_official 508:4f5903e025e6 244 }
mbed_official 508:4f5903e025e6 245
mbed_official 508:4f5903e025e6 246 static void uart2_irq(void)
mbed_official 508:4f5903e025e6 247 {
mbed_official 508:4f5903e025e6 248 uart_irq(UART_2, 1);
mbed_official 508:4f5903e025e6 249 }
mbed_official 508:4f5903e025e6 250
mbed_official 508:4f5903e025e6 251 static void uart3_irq(void)
mbed_official 508:4f5903e025e6 252 {
mbed_official 508:4f5903e025e6 253 uart_irq(UART_3, 2);
mbed_official 508:4f5903e025e6 254 }
mbed_official 508:4f5903e025e6 255
mbed_official 508:4f5903e025e6 256 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 257 static void uart4_irq(void)
mbed_official 508:4f5903e025e6 258 {
mbed_official 508:4f5903e025e6 259 uart_irq(UART_4, 3);
mbed_official 508:4f5903e025e6 260 }
mbed_official 508:4f5903e025e6 261 #endif
mbed_official 508:4f5903e025e6 262
mbed_official 508:4f5903e025e6 263 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 264 static void uart5_irq(void)
mbed_official 508:4f5903e025e6 265 {
mbed_official 508:4f5903e025e6 266 uart_irq(UART_5, 4);
mbed_official 508:4f5903e025e6 267 }
mbed_official 508:4f5903e025e6 268 #endif
mbed_official 508:4f5903e025e6 269
mbed_official 508:4f5903e025e6 270 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 508:4f5903e025e6 271 {
mbed_official 508:4f5903e025e6 272 irq_handler = handler;
mbed_official 508:4f5903e025e6 273 serial_irq_ids[obj->index] = id;
mbed_official 508:4f5903e025e6 274 }
mbed_official 508:4f5903e025e6 275
mbed_official 508:4f5903e025e6 276 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 508:4f5903e025e6 277 {
mbed_official 508:4f5903e025e6 278 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 508:4f5903e025e6 279 uint32_t vector = 0;
mbed_official 508:4f5903e025e6 280
mbed_official 508:4f5903e025e6 281 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 282
mbed_official 508:4f5903e025e6 283 if (obj->uart == UART_1) {
mbed_official 508:4f5903e025e6 284 irq_n = USART1_IRQn;
mbed_official 508:4f5903e025e6 285 vector = (uint32_t)&uart1_irq;
mbed_official 508:4f5903e025e6 286 }
mbed_official 508:4f5903e025e6 287
mbed_official 508:4f5903e025e6 288 if (obj->uart == UART_2) {
mbed_official 508:4f5903e025e6 289 irq_n = USART2_IRQn;
mbed_official 508:4f5903e025e6 290 vector = (uint32_t)&uart2_irq;
mbed_official 508:4f5903e025e6 291 }
mbed_official 508:4f5903e025e6 292
mbed_official 508:4f5903e025e6 293 if (obj->uart == UART_3) {
mbed_official 508:4f5903e025e6 294 irq_n = USART3_IRQn;
mbed_official 508:4f5903e025e6 295 vector = (uint32_t)&uart3_irq;
mbed_official 508:4f5903e025e6 296 }
mbed_official 508:4f5903e025e6 297
mbed_official 508:4f5903e025e6 298 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 299 if (obj->uart == UART_4) {
mbed_official 508:4f5903e025e6 300 irq_n = UART4_IRQn;
mbed_official 508:4f5903e025e6 301 vector = (uint32_t)&uart4_irq;
mbed_official 508:4f5903e025e6 302 }
mbed_official 508:4f5903e025e6 303 #endif
mbed_official 508:4f5903e025e6 304
mbed_official 508:4f5903e025e6 305 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 306 if (obj->uart == UART_5) {
mbed_official 508:4f5903e025e6 307 irq_n = UART5_IRQn;
mbed_official 508:4f5903e025e6 308 vector = (uint32_t)&uart5_irq;
mbed_official 508:4f5903e025e6 309 }
mbed_official 508:4f5903e025e6 310 #endif
mbed_official 508:4f5903e025e6 311
mbed_official 508:4f5903e025e6 312 if (enable) {
mbed_official 508:4f5903e025e6 313
mbed_official 508:4f5903e025e6 314 if (irq == RxIrq) {
mbed_official 508:4f5903e025e6 315 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 508:4f5903e025e6 316 } else { // TxIrq
mbed_official 508:4f5903e025e6 317 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 508:4f5903e025e6 318 }
mbed_official 508:4f5903e025e6 319
mbed_official 508:4f5903e025e6 320 NVIC_SetVector(irq_n, vector);
mbed_official 508:4f5903e025e6 321 NVIC_EnableIRQ(irq_n);
mbed_official 508:4f5903e025e6 322
mbed_official 508:4f5903e025e6 323 } else { // disable
mbed_official 508:4f5903e025e6 324
mbed_official 508:4f5903e025e6 325 int all_disabled = 0;
mbed_official 508:4f5903e025e6 326
mbed_official 508:4f5903e025e6 327 if (irq == RxIrq) {
mbed_official 508:4f5903e025e6 328 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 508:4f5903e025e6 329 // Check if TxIrq is disabled too
mbed_official 508:4f5903e025e6 330 if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1;
mbed_official 508:4f5903e025e6 331 } else { // TxIrq
mbed_official 508:4f5903e025e6 332 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 508:4f5903e025e6 333 // Check if RxIrq is disabled too
mbed_official 508:4f5903e025e6 334 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 508:4f5903e025e6 335 }
mbed_official 508:4f5903e025e6 336
mbed_official 508:4f5903e025e6 337 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 508:4f5903e025e6 338
mbed_official 508:4f5903e025e6 339 }
mbed_official 508:4f5903e025e6 340 }
mbed_official 508:4f5903e025e6 341
mbed_official 508:4f5903e025e6 342 /******************************************************************************
mbed_official 508:4f5903e025e6 343 * READ/WRITE
mbed_official 508:4f5903e025e6 344 ******************************************************************************/
mbed_official 508:4f5903e025e6 345
mbed_official 508:4f5903e025e6 346 int serial_getc(serial_t *obj)
mbed_official 508:4f5903e025e6 347 {
mbed_official 508:4f5903e025e6 348 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 349 while (!serial_readable(obj));
mbed_official 508:4f5903e025e6 350 if (obj->databits == UART_WORDLENGTH_8B) {
mbed_official 508:4f5903e025e6 351 return (int)(uart->RDR & (uint8_t)0xFF);
mbed_official 508:4f5903e025e6 352 } else {
mbed_official 508:4f5903e025e6 353 return (int)(uart->RDR & (uint16_t)0x1FF);
mbed_official 508:4f5903e025e6 354 }
mbed_official 508:4f5903e025e6 355 }
mbed_official 508:4f5903e025e6 356
mbed_official 508:4f5903e025e6 357 void serial_putc(serial_t *obj, int c)
mbed_official 508:4f5903e025e6 358 {
mbed_official 508:4f5903e025e6 359 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 360 while (!serial_writable(obj));
mbed_official 508:4f5903e025e6 361 if (obj->databits == UART_WORDLENGTH_8B) {
mbed_official 508:4f5903e025e6 362 uart->TDR = (uint8_t)(c & (uint8_t)0xFF);
mbed_official 508:4f5903e025e6 363 } else {
mbed_official 508:4f5903e025e6 364 uart->TDR = (uint16_t)(c & (uint16_t)0x1FF);
mbed_official 508:4f5903e025e6 365 }
mbed_official 508:4f5903e025e6 366 }
mbed_official 508:4f5903e025e6 367
mbed_official 508:4f5903e025e6 368 int serial_readable(serial_t *obj)
mbed_official 508:4f5903e025e6 369 {
mbed_official 508:4f5903e025e6 370 int status;
mbed_official 508:4f5903e025e6 371 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 372 // Check if data is received
mbed_official 508:4f5903e025e6 373 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 508:4f5903e025e6 374 return status;
mbed_official 508:4f5903e025e6 375 }
mbed_official 508:4f5903e025e6 376
mbed_official 508:4f5903e025e6 377 int serial_writable(serial_t *obj)
mbed_official 508:4f5903e025e6 378 {
mbed_official 508:4f5903e025e6 379 int status;
mbed_official 508:4f5903e025e6 380 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 381 // Check if data is transmitted
mbed_official 508:4f5903e025e6 382 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 508:4f5903e025e6 383 return status;
mbed_official 508:4f5903e025e6 384 }
mbed_official 508:4f5903e025e6 385
mbed_official 508:4f5903e025e6 386 void serial_clear(serial_t *obj)
mbed_official 508:4f5903e025e6 387 {
mbed_official 508:4f5903e025e6 388 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 389 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 508:4f5903e025e6 390 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 508:4f5903e025e6 391 }
mbed_official 508:4f5903e025e6 392
mbed_official 508:4f5903e025e6 393 void serial_pinout_tx(PinName tx)
mbed_official 508:4f5903e025e6 394 {
mbed_official 508:4f5903e025e6 395 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 508:4f5903e025e6 396 }
mbed_official 508:4f5903e025e6 397
mbed_official 508:4f5903e025e6 398 void serial_break_set(serial_t *obj)
mbed_official 508:4f5903e025e6 399 {
mbed_official 508:4f5903e025e6 400 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 401 HAL_LIN_SendBreak(&UartHandle);
mbed_official 508:4f5903e025e6 402 }
mbed_official 508:4f5903e025e6 403
mbed_official 508:4f5903e025e6 404 void serial_break_clear(serial_t *obj)
mbed_official 508:4f5903e025e6 405 {
mbed_official 508:4f5903e025e6 406 }
mbed_official 508:4f5903e025e6 407
mbed_official 508:4f5903e025e6 408 #endif