lzbp li / mbed-stm32l0l1-src-1

SHIO

Fork of mbed-stm32l0/l1-src by lzbp li

targets/hal/TARGET_STM/TARGET_NUCLEO_L053R8/serial_api.c@489:119543c9f674, 2015-03-12 (annotated)

Committer:
mbed_official
Date:
Thu Mar 12 14:30:49 2015 +0000
Revision:
489:119543c9f674
Parent:
414:4ec4c5b614b0 
Synchronized with git revision 051854181516992fb498d51f9ee6e70cbad9e083



Full URL: https://github.com/mbedmicro/mbed/commit/051854181516992fb498d51f9ee6e70cbad9e083/



Fix ksdk mcu HAL - stopbit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 181:a4cbdfbbd2f4 1 /* mbed Microcontroller Library
mbed_official 181:a4cbdfbbd2f4 2 *******************************************************************************
mbed_official 181:a4cbdfbbd2f4 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 181:a4cbdfbbd2f4 4 * All rights reserved.
mbed_official 181:a4cbdfbbd2f4 5 *
mbed_official 181:a4cbdfbbd2f4 6 * Redistribution and use in source and binary forms, with or without
mbed_official 181:a4cbdfbbd2f4 7 * modification, are permitted provided that the following conditions are met:
mbed_official 181:a4cbdfbbd2f4 8 *
mbed_official 181:a4cbdfbbd2f4 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 181:a4cbdfbbd2f4 10 * this list of conditions and the following disclaimer.
mbed_official 181:a4cbdfbbd2f4 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 181:a4cbdfbbd2f4 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 181:a4cbdfbbd2f4 13 * and/or other materials provided with the distribution.
mbed_official 181:a4cbdfbbd2f4 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 181:a4cbdfbbd2f4 15 * may be used to endorse or promote products derived from this software
mbed_official 181:a4cbdfbbd2f4 16 * without specific prior written permission.
mbed_official 181:a4cbdfbbd2f4 17 *
mbed_official 181:a4cbdfbbd2f4 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 181:a4cbdfbbd2f4 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 181:a4cbdfbbd2f4 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 181:a4cbdfbbd2f4 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 181:a4cbdfbbd2f4 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 181:a4cbdfbbd2f4 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 181:a4cbdfbbd2f4 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 181:a4cbdfbbd2f4 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 181:a4cbdfbbd2f4 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 181:a4cbdfbbd2f4 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 181:a4cbdfbbd2f4 28 *******************************************************************************
mbed_official 181:a4cbdfbbd2f4 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 181:a4cbdfbbd2f4 31 #include "serial_api.h"
mbed_official 181:a4cbdfbbd2f4 32
mbed_official 181:a4cbdfbbd2f4 33 #if DEVICE_SERIAL
mbed_official 181:a4cbdfbbd2f4 34
mbed_official 181:a4cbdfbbd2f4 35 #include "cmsis.h"
mbed_official 181:a4cbdfbbd2f4 36 #include "pinmap.h"
mbed_official 181:a4cbdfbbd2f4 37 #include <string.h>
mbed_official 414:4ec4c5b614b0 38 #include "PeripheralPins.h"
mbed_official 181:a4cbdfbbd2f4 39
mbed_official 489:119543c9f674 40 #define UART_NUM (5)
mbed_official 181:a4cbdfbbd2f4 41
mbed_official 489:119543c9f674 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0};
mbed_official 181:a4cbdfbbd2f4 43
mbed_official 181:a4cbdfbbd2f4 44 static uart_irq_handler irq_handler;
mbed_official 181:a4cbdfbbd2f4 45
mbed_official 181:a4cbdfbbd2f4 46 UART_HandleTypeDef UartHandle;
mbed_official 181:a4cbdfbbd2f4 47
mbed_official 181:a4cbdfbbd2f4 48 int stdio_uart_inited = 0;
mbed_official 181:a4cbdfbbd2f4 49 serial_t stdio_uart;
mbed_official 181:a4cbdfbbd2f4 50
mbed_official 402:09075a3b15e3 51 static void init_uart(serial_t *obj)
mbed_official 402:09075a3b15e3 52 {
mbed_official 181:a4cbdfbbd2f4 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 54
mbed_official 201:fa203361dc70 55 if (obj->uart == LPUART_1) {
mbed_official 201:fa203361dc70 56 UartHandle.Init.BaudRate = obj->baudrate >> 1;
mbed_official 201:fa203361dc70 57 } else {
mbed_official 201:fa203361dc70 58 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 201:fa203361dc70 59 }
mbed_official 181:a4cbdfbbd2f4 60 UartHandle.Init.WordLength = obj->databits;
mbed_official 181:a4cbdfbbd2f4 61 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 181:a4cbdfbbd2f4 62 UartHandle.Init.Parity = obj->parity;
mbed_official 181:a4cbdfbbd2f4 63 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 201:fa203361dc70 64
mbed_official 201:fa203361dc70 65 if (obj->pin_rx == NC) {
mbed_official 201:fa203361dc70 66 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 201:fa203361dc70 67 } else if (obj->pin_tx == NC) {
mbed_official 201:fa203361dc70 68 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 181:a4cbdfbbd2f4 69 } else {
mbed_official 201:fa203361dc70 70 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 181:a4cbdfbbd2f4 71 }
mbed_official 181:a4cbdfbbd2f4 72
mbed_official 293:2a9cf2ed1474 73 // Disable the reception overrun detection
mbed_official 293:2a9cf2ed1474 74 UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT;
mbed_official 293:2a9cf2ed1474 75 UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE;
mbed_official 402:09075a3b15e3 76
mbed_official 181:a4cbdfbbd2f4 77 HAL_UART_Init(&UartHandle);
mbed_official 181:a4cbdfbbd2f4 78 }
mbed_official 181:a4cbdfbbd2f4 79
mbed_official 402:09075a3b15e3 80 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 402:09075a3b15e3 81 {
mbed_official 181:a4cbdfbbd2f4 82 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 181:a4cbdfbbd2f4 83 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 84 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 181:a4cbdfbbd2f4 85
mbed_official 181:a4cbdfbbd2f4 86 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 181:a4cbdfbbd2f4 87 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 88 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 181:a4cbdfbbd2f4 89
mbed_official 181:a4cbdfbbd2f4 90 // Enable UART clock
mbed_official 181:a4cbdfbbd2f4 91 if (obj->uart == UART_1) {
mbed_official 489:119543c9f674 92 __HAL_RCC_USART1_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 93 obj->index = 0;
mbed_official 181:a4cbdfbbd2f4 94 }
mbed_official 181:a4cbdfbbd2f4 95
mbed_official 181:a4cbdfbbd2f4 96 if (obj->uart == UART_2) {
mbed_official 489:119543c9f674 97 __HAL_RCC_USART2_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 98 obj->index = 1;
mbed_official 181:a4cbdfbbd2f4 99 }
mbed_official 181:a4cbdfbbd2f4 100
mbed_official 181:a4cbdfbbd2f4 101 if (obj->uart == LPUART_1) {
mbed_official 489:119543c9f674 102 __HAL_RCC_LPUART1_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 103 obj->index = 2;
mbed_official 181:a4cbdfbbd2f4 104 }
mbed_official 181:a4cbdfbbd2f4 105
mbed_official 489:119543c9f674 106 #if defined(USART4_BASE)
mbed_official 489:119543c9f674 107 if (obj->uart == UART_4) {
mbed_official 489:119543c9f674 108 __HAL_RCC_USART4_CLK_ENABLE();
mbed_official 489:119543c9f674 109 obj->index = 3;
mbed_official 489:119543c9f674 110 }
mbed_official 489:119543c9f674 111 #endif
mbed_official 489:119543c9f674 112
mbed_official 489:119543c9f674 113 #if defined(USART5_BASE)
mbed_official 489:119543c9f674 114 if (obj->uart == UART_5) {
mbed_official 489:119543c9f674 115 __HAL_RCC_USART5_CLK_ENABLE();
mbed_official 489:119543c9f674 116 obj->index = 4;
mbed_official 489:119543c9f674 117 }
mbed_official 489:119543c9f674 118 #endif
mbed_official 489:119543c9f674 119
mbed_official 181:a4cbdfbbd2f4 120 // Configure the UART pins
mbed_official 181:a4cbdfbbd2f4 121 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 122 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 339:40bd4701f3e2 123 if (tx != NC) {
mbed_official 339:40bd4701f3e2 124 pin_mode(tx, PullUp);
mbed_official 339:40bd4701f3e2 125 }
mbed_official 339:40bd4701f3e2 126 if (rx != NC) {
mbed_official 339:40bd4701f3e2 127 pin_mode(rx, PullUp);
mbed_official 339:40bd4701f3e2 128 }
mbed_official 181:a4cbdfbbd2f4 129
mbed_official 181:a4cbdfbbd2f4 130 // Configure UART
mbed_official 181:a4cbdfbbd2f4 131 obj->baudrate = 9600;
mbed_official 181:a4cbdfbbd2f4 132 obj->databits = UART_WORDLENGTH_8B;
mbed_official 181:a4cbdfbbd2f4 133 obj->stopbits = UART_STOPBITS_1;
mbed_official 181:a4cbdfbbd2f4 134 obj->parity = UART_PARITY_NONE;
mbed_official 201:fa203361dc70 135 obj->pin_tx = tx;
mbed_official 201:fa203361dc70 136 obj->pin_rx = rx;
mbed_official 181:a4cbdfbbd2f4 137
mbed_official 181:a4cbdfbbd2f4 138 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 139
mbed_official 181:a4cbdfbbd2f4 140 // For stdio management
mbed_official 181:a4cbdfbbd2f4 141 if (obj->uart == STDIO_UART) {
mbed_official 181:a4cbdfbbd2f4 142 stdio_uart_inited = 1;
mbed_official 181:a4cbdfbbd2f4 143 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 181:a4cbdfbbd2f4 144 }
mbed_official 181:a4cbdfbbd2f4 145 }
mbed_official 181:a4cbdfbbd2f4 146
mbed_official 402:09075a3b15e3 147 void serial_free(serial_t *obj)
mbed_official 402:09075a3b15e3 148 {
mbed_official 201:fa203361dc70 149 // Reset UART and disable clock
mbed_official 201:fa203361dc70 150 if (obj->uart == UART_1) {
mbed_official 489:119543c9f674 151 __HAL_RCC_USART1_FORCE_RESET();
mbed_official 489:119543c9f674 152 __HAL_RCC_USART1_RELEASE_RESET();
mbed_official 489:119543c9f674 153 __HAL_RCC_USART1_CLK_DISABLE();
mbed_official 201:fa203361dc70 154 }
mbed_official 201:fa203361dc70 155
mbed_official 201:fa203361dc70 156 if (obj->uart == UART_2) {
mbed_official 489:119543c9f674 157 __HAL_RCC_USART2_FORCE_RESET();
mbed_official 489:119543c9f674 158 __HAL_RCC_USART2_RELEASE_RESET();
mbed_official 489:119543c9f674 159 __HAL_RCC_USART2_CLK_DISABLE();
mbed_official 201:fa203361dc70 160 }
mbed_official 201:fa203361dc70 161
mbed_official 201:fa203361dc70 162 if (obj->uart == LPUART_1) {
mbed_official 489:119543c9f674 163 __HAL_RCC_LPUART1_FORCE_RESET();
mbed_official 489:119543c9f674 164 __HAL_RCC_LPUART1_RELEASE_RESET();
mbed_official 489:119543c9f674 165 __HAL_RCC_LPUART1_CLK_DISABLE();
mbed_official 201:fa203361dc70 166 }
mbed_official 201:fa203361dc70 167
mbed_official 489:119543c9f674 168 #if defined(USART4_BASE)
mbed_official 489:119543c9f674 169 if (obj->uart == UART_4) {
mbed_official 489:119543c9f674 170 __HAL_RCC_USART4_FORCE_RESET();
mbed_official 489:119543c9f674 171 __HAL_RCC_USART4_RELEASE_RESET();
mbed_official 489:119543c9f674 172 __HAL_RCC_USART4_CLK_DISABLE();
mbed_official 489:119543c9f674 173 }
mbed_official 489:119543c9f674 174 #endif
mbed_official 489:119543c9f674 175
mbed_official 489:119543c9f674 176 #if defined(USART5_BASE)
mbed_official 489:119543c9f674 177 if (obj->uart == UART_5) {
mbed_official 489:119543c9f674 178 __HAL_RCC_USART5_FORCE_RESET();
mbed_official 489:119543c9f674 179 __HAL_RCC_USART5_RELEASE_RESET();
mbed_official 489:119543c9f674 180 __HAL_RCC_USART5_CLK_DISABLE();
mbed_official 489:119543c9f674 181 }
mbed_official 489:119543c9f674 182 #endif
mbed_official 489:119543c9f674 183
mbed_official 201:fa203361dc70 184 // Configure GPIOs
mbed_official 201:fa203361dc70 185 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 201:fa203361dc70 186 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 201:fa203361dc70 187
mbed_official 181:a4cbdfbbd2f4 188 serial_irq_ids[obj->index] = 0;
mbed_official 181:a4cbdfbbd2f4 189 }
mbed_official 181:a4cbdfbbd2f4 190
mbed_official 402:09075a3b15e3 191 void serial_baud(serial_t *obj, int baudrate)
mbed_official 402:09075a3b15e3 192 {
mbed_official 181:a4cbdfbbd2f4 193 obj->baudrate = baudrate;
mbed_official 181:a4cbdfbbd2f4 194 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 195 }
mbed_official 181:a4cbdfbbd2f4 196
mbed_official 402:09075a3b15e3 197 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 402:09075a3b15e3 198 {
mbed_official 242:7074e42da0b2 199 if (data_bits == 9) {
mbed_official 242:7074e42da0b2 200 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 201 } else {
mbed_official 181:a4cbdfbbd2f4 202 obj->databits = UART_WORDLENGTH_8B;
mbed_official 181:a4cbdfbbd2f4 203 }
mbed_official 181:a4cbdfbbd2f4 204
mbed_official 181:a4cbdfbbd2f4 205 switch (parity) {
mbed_official 181:a4cbdfbbd2f4 206 case ParityOdd:
mbed_official 181:a4cbdfbbd2f4 207 case ParityForced0:
mbed_official 181:a4cbdfbbd2f4 208 obj->parity = UART_PARITY_ODD;
mbed_official 181:a4cbdfbbd2f4 209 break;
mbed_official 181:a4cbdfbbd2f4 210 case ParityEven:
mbed_official 181:a4cbdfbbd2f4 211 case ParityForced1:
mbed_official 181:a4cbdfbbd2f4 212 obj->parity = UART_PARITY_EVEN;
mbed_official 181:a4cbdfbbd2f4 213 break;
mbed_official 181:a4cbdfbbd2f4 214 default: // ParityNone
mbed_official 181:a4cbdfbbd2f4 215 obj->parity = UART_PARITY_NONE;
mbed_official 181:a4cbdfbbd2f4 216 break;
mbed_official 181:a4cbdfbbd2f4 217 }
mbed_official 181:a4cbdfbbd2f4 218
mbed_official 181:a4cbdfbbd2f4 219 if (stop_bits == 2) {
mbed_official 181:a4cbdfbbd2f4 220 obj->stopbits = UART_STOPBITS_2;
mbed_official 181:a4cbdfbbd2f4 221 } else {
mbed_official 181:a4cbdfbbd2f4 222 obj->stopbits = UART_STOPBITS_1;
mbed_official 181:a4cbdfbbd2f4 223 }
mbed_official 181:a4cbdfbbd2f4 224
mbed_official 181:a4cbdfbbd2f4 225 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 226 }
mbed_official 181:a4cbdfbbd2f4 227
mbed_official 181:a4cbdfbbd2f4 228 /******************************************************************************
mbed_official 181:a4cbdfbbd2f4 229 * INTERRUPTS HANDLING
mbed_official 181:a4cbdfbbd2f4 230 ******************************************************************************/
mbed_official 181:a4cbdfbbd2f4 231
mbed_official 402:09075a3b15e3 232 static void uart_irq(UARTName name, int id)
mbed_official 402:09075a3b15e3 233 {
mbed_official 181:a4cbdfbbd2f4 234 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 181:a4cbdfbbd2f4 235 if (serial_irq_ids[id] != 0) {
mbed_official 181:a4cbdfbbd2f4 236 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 181:a4cbdfbbd2f4 237 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 181:a4cbdfbbd2f4 238 __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF);
mbed_official 181:a4cbdfbbd2f4 239 }
mbed_official 181:a4cbdfbbd2f4 240 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 181:a4cbdfbbd2f4 241 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 293:2a9cf2ed1474 242 volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
mbed_official 181:a4cbdfbbd2f4 243 }
mbed_official 181:a4cbdfbbd2f4 244 }
mbed_official 181:a4cbdfbbd2f4 245 }
mbed_official 181:a4cbdfbbd2f4 246
mbed_official 402:09075a3b15e3 247 static void uart1_irq(void)
mbed_official 402:09075a3b15e3 248 {
mbed_official 181:a4cbdfbbd2f4 249 uart_irq(UART_1, 0);
mbed_official 181:a4cbdfbbd2f4 250 }
mbed_official 201:fa203361dc70 251
mbed_official 402:09075a3b15e3 252 static void uart2_irq(void)
mbed_official 402:09075a3b15e3 253 {
mbed_official 181:a4cbdfbbd2f4 254 uart_irq(UART_2, 1);
mbed_official 181:a4cbdfbbd2f4 255 }
mbed_official 201:fa203361dc70 256
mbed_official 402:09075a3b15e3 257 static void lpuart1_irq(void)
mbed_official 402:09075a3b15e3 258 {
mbed_official 181:a4cbdfbbd2f4 259 uart_irq(LPUART_1, 2);
mbed_official 181:a4cbdfbbd2f4 260 }
mbed_official 181:a4cbdfbbd2f4 261
mbed_official 489:119543c9f674 262 #if defined(USART4_BASE)
mbed_official 489:119543c9f674 263 static void uart4_irq(void)
mbed_official 489:119543c9f674 264 {
mbed_official 489:119543c9f674 265 uart_irq(UART_4, 3);
mbed_official 489:119543c9f674 266 }
mbed_official 489:119543c9f674 267 #endif
mbed_official 489:119543c9f674 268
mbed_official 489:119543c9f674 269 #if defined(USART5_BASE)
mbed_official 489:119543c9f674 270 static void uart5_irq(void)
mbed_official 489:119543c9f674 271 {
mbed_official 489:119543c9f674 272 uart_irq(UART_5, 4);
mbed_official 489:119543c9f674 273 }
mbed_official 489:119543c9f674 274 #endif
mbed_official 489:119543c9f674 275
mbed_official 402:09075a3b15e3 276 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 402:09075a3b15e3 277 {
mbed_official 181:a4cbdfbbd2f4 278 irq_handler = handler;
mbed_official 181:a4cbdfbbd2f4 279 serial_irq_ids[obj->index] = id;
mbed_official 181:a4cbdfbbd2f4 280 }
mbed_official 181:a4cbdfbbd2f4 281
mbed_official 402:09075a3b15e3 282 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 402:09075a3b15e3 283 {
mbed_official 181:a4cbdfbbd2f4 284 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 181:a4cbdfbbd2f4 285 uint32_t vector = 0;
mbed_official 181:a4cbdfbbd2f4 286
mbed_official 181:a4cbdfbbd2f4 287 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 288
mbed_official 181:a4cbdfbbd2f4 289 if (obj->uart == UART_1) {
mbed_official 181:a4cbdfbbd2f4 290 irq_n = USART1_IRQn;
mbed_official 181:a4cbdfbbd2f4 291 vector = (uint32_t)&uart1_irq;
mbed_official 181:a4cbdfbbd2f4 292 }
mbed_official 181:a4cbdfbbd2f4 293
mbed_official 181:a4cbdfbbd2f4 294 if (obj->uart == UART_2) {
mbed_official 181:a4cbdfbbd2f4 295 irq_n = USART2_IRQn;
mbed_official 181:a4cbdfbbd2f4 296 vector = (uint32_t)&uart2_irq;
mbed_official 181:a4cbdfbbd2f4 297 }
mbed_official 181:a4cbdfbbd2f4 298
mbed_official 181:a4cbdfbbd2f4 299 if (obj->uart == LPUART_1) {
mbed_official 181:a4cbdfbbd2f4 300 irq_n = RNG_LPUART1_IRQn;
mbed_official 181:a4cbdfbbd2f4 301 vector = (uint32_t)&lpuart1_irq;
mbed_official 181:a4cbdfbbd2f4 302 }
mbed_official 181:a4cbdfbbd2f4 303
mbed_official 489:119543c9f674 304 #if defined(USART4_BASE)
mbed_official 489:119543c9f674 305 if (obj->uart == UART_4) {
mbed_official 489:119543c9f674 306 irq_n = USART4_5_IRQn;
mbed_official 489:119543c9f674 307 vector = (uint32_t)&uart4_irq;
mbed_official 489:119543c9f674 308 }
mbed_official 489:119543c9f674 309 #endif
mbed_official 489:119543c9f674 310
mbed_official 489:119543c9f674 311 #if defined(USART5_BASE)
mbed_official 489:119543c9f674 312 if (obj->uart == UART_5) {
mbed_official 489:119543c9f674 313 irq_n = USART4_5_IRQn;
mbed_official 489:119543c9f674 314 vector = (uint32_t)&uart5_irq;
mbed_official 489:119543c9f674 315 }
mbed_official 489:119543c9f674 316 #endif
mbed_official 489:119543c9f674 317
mbed_official 181:a4cbdfbbd2f4 318 if (enable) {
mbed_official 181:a4cbdfbbd2f4 319
mbed_official 181:a4cbdfbbd2f4 320 if (irq == RxIrq) {
mbed_official 181:a4cbdfbbd2f4 321 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 181:a4cbdfbbd2f4 322 } else { // TxIrq
mbed_official 181:a4cbdfbbd2f4 323 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 181:a4cbdfbbd2f4 324 }
mbed_official 181:a4cbdfbbd2f4 325
mbed_official 181:a4cbdfbbd2f4 326 NVIC_SetVector(irq_n, vector);
mbed_official 181:a4cbdfbbd2f4 327 NVIC_EnableIRQ(irq_n);
mbed_official 181:a4cbdfbbd2f4 328
mbed_official 181:a4cbdfbbd2f4 329 } else { // disable
mbed_official 181:a4cbdfbbd2f4 330
mbed_official 181:a4cbdfbbd2f4 331 int all_disabled = 0;
mbed_official 181:a4cbdfbbd2f4 332
mbed_official 181:a4cbdfbbd2f4 333 if (irq == RxIrq) {
mbed_official 181:a4cbdfbbd2f4 334 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 181:a4cbdfbbd2f4 335 // Check if TxIrq is disabled too
mbed_official 293:2a9cf2ed1474 336 if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1;
mbed_official 181:a4cbdfbbd2f4 337 } else { // TxIrq
mbed_official 293:2a9cf2ed1474 338 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 181:a4cbdfbbd2f4 339 // Check if RxIrq is disabled too
mbed_official 181:a4cbdfbbd2f4 340 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 181:a4cbdfbbd2f4 341 }
mbed_official 181:a4cbdfbbd2f4 342
mbed_official 181:a4cbdfbbd2f4 343 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 181:a4cbdfbbd2f4 344
mbed_official 181:a4cbdfbbd2f4 345 }
mbed_official 181:a4cbdfbbd2f4 346 }
mbed_official 181:a4cbdfbbd2f4 347
mbed_official 181:a4cbdfbbd2f4 348 /******************************************************************************
mbed_official 181:a4cbdfbbd2f4 349 * READ/WRITE
mbed_official 181:a4cbdfbbd2f4 350 ******************************************************************************/
mbed_official 181:a4cbdfbbd2f4 351
mbed_official 402:09075a3b15e3 352 int serial_getc(serial_t *obj)
mbed_official 402:09075a3b15e3 353 {
mbed_official 181:a4cbdfbbd2f4 354 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 355 while (!serial_readable(obj));
mbed_official 293:2a9cf2ed1474 356 return (int)(uart->RDR & (uint32_t)0xFF);
mbed_official 181:a4cbdfbbd2f4 357 }
mbed_official 181:a4cbdfbbd2f4 358
mbed_official 402:09075a3b15e3 359 void serial_putc(serial_t *obj, int c)
mbed_official 402:09075a3b15e3 360 {
mbed_official 181:a4cbdfbbd2f4 361 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 362 while (!serial_writable(obj));
mbed_official 293:2a9cf2ed1474 363 uart->TDR = (uint32_t)(c & (uint32_t)0xFF);
mbed_official 181:a4cbdfbbd2f4 364 }
mbed_official 181:a4cbdfbbd2f4 365
mbed_official 402:09075a3b15e3 366 int serial_readable(serial_t *obj)
mbed_official 402:09075a3b15e3 367 {
mbed_official 181:a4cbdfbbd2f4 368 int status;
mbed_official 181:a4cbdfbbd2f4 369 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 370 // Check if data is received
mbed_official 181:a4cbdfbbd2f4 371 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 181:a4cbdfbbd2f4 372 return status;
mbed_official 181:a4cbdfbbd2f4 373 }
mbed_official 181:a4cbdfbbd2f4 374
mbed_official 402:09075a3b15e3 375 int serial_writable(serial_t *obj)
mbed_official 402:09075a3b15e3 376 {
mbed_official 181:a4cbdfbbd2f4 377 int status;
mbed_official 181:a4cbdfbbd2f4 378 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 379 // Check if data is transmitted
mbed_official 181:a4cbdfbbd2f4 380 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 181:a4cbdfbbd2f4 381 return status;
mbed_official 181:a4cbdfbbd2f4 382 }
mbed_official 181:a4cbdfbbd2f4 383
mbed_official 402:09075a3b15e3 384 void serial_clear(serial_t *obj)
mbed_official 402:09075a3b15e3 385 {
mbed_official 181:a4cbdfbbd2f4 386 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 387 __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF);
mbed_official 181:a4cbdfbbd2f4 388 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 181:a4cbdfbbd2f4 389 }
mbed_official 181:a4cbdfbbd2f4 390
mbed_official 402:09075a3b15e3 391 void serial_pinout_tx(PinName tx)
mbed_official 402:09075a3b15e3 392 {
mbed_official 181:a4cbdfbbd2f4 393 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 394 }
mbed_official 181:a4cbdfbbd2f4 395
mbed_official 402:09075a3b15e3 396 void serial_break_set(serial_t *obj)
mbed_official 402:09075a3b15e3 397 {
mbed_official 181:a4cbdfbbd2f4 398 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 399 __HAL_UART_SEND_REQ(&UartHandle, UART_SENDBREAK_REQUEST);
mbed_official 181:a4cbdfbbd2f4 400 }
mbed_official 181:a4cbdfbbd2f4 401
mbed_official 402:09075a3b15e3 402 void serial_break_clear(serial_t *obj)
mbed_official 402:09075a3b15e3 403 {
mbed_official 181:a4cbdfbbd2f4 404 }
mbed_official 181:a4cbdfbbd2f4 405
mbed_official 181:a4cbdfbbd2f4 406 #endif