mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F072RB/serial_api.c@440:8a0b45cd594f, 2014-12-16 (annotated)

Committer:
mbed_official
Date:
Tue Dec 16 08:15:08 2014 +0000
Revision:
440:8a0b45cd594f
Parent:
414:4ec4c5b614b0 
Synchronized with git revision 67fbbf0b635d0c0d93fbe433306c537c2ad206aa



Full URL: https://github.com/mbedmicro/mbed/commit/67fbbf0b635d0c0d93fbe433306c537c2ad206aa/



Targets: nrf51 - updating app_timer.c from Norid'c SDKv7.1.0

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