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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_L053R8/serial_api.c@268:402bcc0c870b, 2014-07-29 (annotated)

Committer:
mbed_official
Date:
Tue Jul 29 19:00:07 2014 +0100
Revision:
268:402bcc0c870b
Parent:
242:7074e42da0b2
Child:
293:2a9cf2ed1474
Synchronized with git revision 490d1a6606b3138f165c5edf2f2370ca616587c0



Full URL: https://github.com/mbedmicro/mbed/commit/490d1a6606b3138f165c5edf2f2370ca616587c0/



[LPC1114] Sleep fix + some device.h settings

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 181:a4cbdfbbd2f4 38
mbed_official 181:a4cbdfbbd2f4 39 static const PinMap PinMap_UART_TX[] = {
mbed_official 181:a4cbdfbbd2f4 40 {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
mbed_official 181:a4cbdfbbd2f4 41 {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
mbed_official 181:a4cbdfbbd2f4 42 {PA_14, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)}, // Warning: this pin is used by SWCLK
mbed_official 181:a4cbdfbbd2f4 43 {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
mbed_official 181:a4cbdfbbd2f4 44 {PB_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 45 {PC_4, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 46 {PC_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 47 {NC, NC, 0}
mbed_official 181:a4cbdfbbd2f4 48 };
mbed_official 181:a4cbdfbbd2f4 49
mbed_official 181:a4cbdfbbd2f4 50 static const PinMap PinMap_UART_RX[] = {
mbed_official 181:a4cbdfbbd2f4 51 {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
mbed_official 181:a4cbdfbbd2f4 52 {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
mbed_official 181:a4cbdfbbd2f4 53 {PA_15, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
mbed_official 181:a4cbdfbbd2f4 54 {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
mbed_official 181:a4cbdfbbd2f4 55 {PB_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 56 {PC_5, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 57 {PC_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 58 {NC, NC, 0}
mbed_official 181:a4cbdfbbd2f4 59 };
mbed_official 181:a4cbdfbbd2f4 60
mbed_official 181:a4cbdfbbd2f4 61 #define UART_NUM (3)
mbed_official 181:a4cbdfbbd2f4 62
mbed_official 181:a4cbdfbbd2f4 63 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
mbed_official 181:a4cbdfbbd2f4 64
mbed_official 181:a4cbdfbbd2f4 65 static uart_irq_handler irq_handler;
mbed_official 181:a4cbdfbbd2f4 66
mbed_official 181:a4cbdfbbd2f4 67 UART_HandleTypeDef UartHandle;
mbed_official 181:a4cbdfbbd2f4 68
mbed_official 181:a4cbdfbbd2f4 69 int stdio_uart_inited = 0;
mbed_official 181:a4cbdfbbd2f4 70 serial_t stdio_uart;
mbed_official 181:a4cbdfbbd2f4 71
mbed_official 181:a4cbdfbbd2f4 72 static void init_uart(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 73 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 74
mbed_official 201:fa203361dc70 75 // [TODO] Workaround to be removed after HAL driver is corrected
mbed_official 201:fa203361dc70 76 if (obj->uart == LPUART_1) {
mbed_official 201:fa203361dc70 77 UartHandle.Init.BaudRate = obj->baudrate >> 1;
mbed_official 201:fa203361dc70 78 } else {
mbed_official 201:fa203361dc70 79 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 201:fa203361dc70 80 }
mbed_official 181:a4cbdfbbd2f4 81 UartHandle.Init.WordLength = obj->databits;
mbed_official 181:a4cbdfbbd2f4 82 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 181:a4cbdfbbd2f4 83 UartHandle.Init.Parity = obj->parity;
mbed_official 181:a4cbdfbbd2f4 84 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 201:fa203361dc70 85
mbed_official 201:fa203361dc70 86 if (obj->pin_rx == NC) {
mbed_official 201:fa203361dc70 87 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 201:fa203361dc70 88 } else if (obj->pin_tx == NC) {
mbed_official 201:fa203361dc70 89 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 181:a4cbdfbbd2f4 90 } else {
mbed_official 201:fa203361dc70 91 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 181:a4cbdfbbd2f4 92 }
mbed_official 181:a4cbdfbbd2f4 93
mbed_official 181:a4cbdfbbd2f4 94 HAL_UART_Init(&UartHandle);
mbed_official 181:a4cbdfbbd2f4 95 }
mbed_official 181:a4cbdfbbd2f4 96
mbed_official 181:a4cbdfbbd2f4 97 void serial_init(serial_t *obj, PinName tx, PinName rx) {
mbed_official 181:a4cbdfbbd2f4 98 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 181:a4cbdfbbd2f4 99 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 100 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 181:a4cbdfbbd2f4 101
mbed_official 181:a4cbdfbbd2f4 102 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 181:a4cbdfbbd2f4 103 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 104 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 181:a4cbdfbbd2f4 105
mbed_official 181:a4cbdfbbd2f4 106 // Enable UART clock
mbed_official 181:a4cbdfbbd2f4 107 if (obj->uart == UART_1) {
mbed_official 181:a4cbdfbbd2f4 108 __USART1_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 109 obj->index = 0;
mbed_official 181:a4cbdfbbd2f4 110 }
mbed_official 181:a4cbdfbbd2f4 111
mbed_official 181:a4cbdfbbd2f4 112 if (obj->uart == UART_2) {
mbed_official 181:a4cbdfbbd2f4 113 __USART2_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 114 obj->index = 1;
mbed_official 181:a4cbdfbbd2f4 115 }
mbed_official 181:a4cbdfbbd2f4 116
mbed_official 181:a4cbdfbbd2f4 117 if (obj->uart == LPUART_1) {
mbed_official 181:a4cbdfbbd2f4 118 __LPUART1_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 119 obj->index = 2;
mbed_official 181:a4cbdfbbd2f4 120 }
mbed_official 181:a4cbdfbbd2f4 121
mbed_official 181:a4cbdfbbd2f4 122 // Configure the UART pins
mbed_official 181:a4cbdfbbd2f4 123 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 124 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 181:a4cbdfbbd2f4 125 pin_mode(tx, PullUp);
mbed_official 181:a4cbdfbbd2f4 126 pin_mode(rx, PullUp);
mbed_official 181:a4cbdfbbd2f4 127
mbed_official 181:a4cbdfbbd2f4 128 // Configure UART
mbed_official 181:a4cbdfbbd2f4 129 obj->baudrate = 9600;
mbed_official 181:a4cbdfbbd2f4 130 obj->databits = UART_WORDLENGTH_8B;
mbed_official 181:a4cbdfbbd2f4 131 obj->stopbits = UART_STOPBITS_1;
mbed_official 181:a4cbdfbbd2f4 132 obj->parity = UART_PARITY_NONE;
mbed_official 201:fa203361dc70 133 obj->pin_tx = tx;
mbed_official 201:fa203361dc70 134 obj->pin_rx = rx;
mbed_official 181:a4cbdfbbd2f4 135
mbed_official 181:a4cbdfbbd2f4 136 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 137
mbed_official 181:a4cbdfbbd2f4 138 // For stdio management
mbed_official 181:a4cbdfbbd2f4 139 if (obj->uart == STDIO_UART) {
mbed_official 181:a4cbdfbbd2f4 140 stdio_uart_inited = 1;
mbed_official 181:a4cbdfbbd2f4 141 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 181:a4cbdfbbd2f4 142 }
mbed_official 181:a4cbdfbbd2f4 143 }
mbed_official 181:a4cbdfbbd2f4 144
mbed_official 181:a4cbdfbbd2f4 145 void serial_free(serial_t *obj) {
mbed_official 201:fa203361dc70 146 // Reset UART and disable clock
mbed_official 201:fa203361dc70 147 if (obj->uart == UART_1) {
mbed_official 201:fa203361dc70 148 __USART1_FORCE_RESET();
mbed_official 201:fa203361dc70 149 __USART1_RELEASE_RESET();
mbed_official 201:fa203361dc70 150 __USART1_CLK_DISABLE();
mbed_official 201:fa203361dc70 151 }
mbed_official 201:fa203361dc70 152
mbed_official 201:fa203361dc70 153 if (obj->uart == UART_2) {
mbed_official 201:fa203361dc70 154 __USART2_FORCE_RESET();
mbed_official 201:fa203361dc70 155 __USART2_RELEASE_RESET();
mbed_official 201:fa203361dc70 156 __USART2_CLK_DISABLE();
mbed_official 201:fa203361dc70 157 }
mbed_official 201:fa203361dc70 158
mbed_official 201:fa203361dc70 159 if (obj->uart == LPUART_1) {
mbed_official 201:fa203361dc70 160 __LPUART1_FORCE_RESET();
mbed_official 201:fa203361dc70 161 __LPUART1_RELEASE_RESET();
mbed_official 201:fa203361dc70 162 __LPUART1_CLK_DISABLE();
mbed_official 201:fa203361dc70 163 }
mbed_official 201:fa203361dc70 164
mbed_official 201:fa203361dc70 165 // Configure GPIOs
mbed_official 201:fa203361dc70 166 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 201:fa203361dc70 167 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 201:fa203361dc70 168
mbed_official 181:a4cbdfbbd2f4 169 serial_irq_ids[obj->index] = 0;
mbed_official 181:a4cbdfbbd2f4 170 }
mbed_official 181:a4cbdfbbd2f4 171
mbed_official 181:a4cbdfbbd2f4 172 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 181:a4cbdfbbd2f4 173 obj->baudrate = baudrate;
mbed_official 181:a4cbdfbbd2f4 174 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 175 }
mbed_official 181:a4cbdfbbd2f4 176
mbed_official 181:a4cbdfbbd2f4 177 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 242:7074e42da0b2 178 if (data_bits == 9) {
mbed_official 242:7074e42da0b2 179 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 180 } else {
mbed_official 181:a4cbdfbbd2f4 181 obj->databits = UART_WORDLENGTH_8B;
mbed_official 181:a4cbdfbbd2f4 182 }
mbed_official 181:a4cbdfbbd2f4 183
mbed_official 181:a4cbdfbbd2f4 184 switch (parity) {
mbed_official 181:a4cbdfbbd2f4 185 case ParityOdd:
mbed_official 181:a4cbdfbbd2f4 186 case ParityForced0:
mbed_official 181:a4cbdfbbd2f4 187 obj->parity = UART_PARITY_ODD;
mbed_official 181:a4cbdfbbd2f4 188 break;
mbed_official 181:a4cbdfbbd2f4 189 case ParityEven:
mbed_official 181:a4cbdfbbd2f4 190 case ParityForced1:
mbed_official 181:a4cbdfbbd2f4 191 obj->parity = UART_PARITY_EVEN;
mbed_official 181:a4cbdfbbd2f4 192 break;
mbed_official 181:a4cbdfbbd2f4 193 default: // ParityNone
mbed_official 181:a4cbdfbbd2f4 194 obj->parity = UART_PARITY_NONE;
mbed_official 181:a4cbdfbbd2f4 195 break;
mbed_official 181:a4cbdfbbd2f4 196 }
mbed_official 181:a4cbdfbbd2f4 197
mbed_official 181:a4cbdfbbd2f4 198 if (stop_bits == 2) {
mbed_official 181:a4cbdfbbd2f4 199 obj->stopbits = UART_STOPBITS_2;
mbed_official 181:a4cbdfbbd2f4 200 } else {
mbed_official 181:a4cbdfbbd2f4 201 obj->stopbits = UART_STOPBITS_1;
mbed_official 181:a4cbdfbbd2f4 202 }
mbed_official 181:a4cbdfbbd2f4 203
mbed_official 181:a4cbdfbbd2f4 204 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 205 }
mbed_official 181:a4cbdfbbd2f4 206
mbed_official 181:a4cbdfbbd2f4 207 /******************************************************************************
mbed_official 181:a4cbdfbbd2f4 208 * INTERRUPTS HANDLING
mbed_official 181:a4cbdfbbd2f4 209 ******************************************************************************/
mbed_official 181:a4cbdfbbd2f4 210
mbed_official 181:a4cbdfbbd2f4 211 static void uart_irq(UARTName name, int id) {
mbed_official 181:a4cbdfbbd2f4 212 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 181:a4cbdfbbd2f4 213 if (serial_irq_ids[id] != 0) {
mbed_official 181:a4cbdfbbd2f4 214 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 181:a4cbdfbbd2f4 215 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 181:a4cbdfbbd2f4 216 __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF);
mbed_official 181:a4cbdfbbd2f4 217 }
mbed_official 181:a4cbdfbbd2f4 218 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 181:a4cbdfbbd2f4 219 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 181:a4cbdfbbd2f4 220 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 181:a4cbdfbbd2f4 221 }
mbed_official 181:a4cbdfbbd2f4 222 }
mbed_official 181:a4cbdfbbd2f4 223 }
mbed_official 181:a4cbdfbbd2f4 224
mbed_official 181:a4cbdfbbd2f4 225 static void uart1_irq(void) {
mbed_official 181:a4cbdfbbd2f4 226 uart_irq(UART_1, 0);
mbed_official 181:a4cbdfbbd2f4 227 }
mbed_official 201:fa203361dc70 228
mbed_official 181:a4cbdfbbd2f4 229 static void uart2_irq(void) {
mbed_official 181:a4cbdfbbd2f4 230 uart_irq(UART_2, 1);
mbed_official 181:a4cbdfbbd2f4 231 }
mbed_official 201:fa203361dc70 232
mbed_official 181:a4cbdfbbd2f4 233 static void lpuart1_irq(void) {
mbed_official 181:a4cbdfbbd2f4 234 uart_irq(LPUART_1, 2);
mbed_official 181:a4cbdfbbd2f4 235 }
mbed_official 181:a4cbdfbbd2f4 236
mbed_official 181:a4cbdfbbd2f4 237 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 181:a4cbdfbbd2f4 238 irq_handler = handler;
mbed_official 181:a4cbdfbbd2f4 239 serial_irq_ids[obj->index] = id;
mbed_official 181:a4cbdfbbd2f4 240 }
mbed_official 181:a4cbdfbbd2f4 241
mbed_official 181:a4cbdfbbd2f4 242 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 181:a4cbdfbbd2f4 243 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 181:a4cbdfbbd2f4 244 uint32_t vector = 0;
mbed_official 181:a4cbdfbbd2f4 245
mbed_official 181:a4cbdfbbd2f4 246 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 247
mbed_official 181:a4cbdfbbd2f4 248 if (obj->uart == UART_1) {
mbed_official 181:a4cbdfbbd2f4 249 irq_n = USART1_IRQn;
mbed_official 181:a4cbdfbbd2f4 250 vector = (uint32_t)&uart1_irq;
mbed_official 181:a4cbdfbbd2f4 251 }
mbed_official 181:a4cbdfbbd2f4 252
mbed_official 181:a4cbdfbbd2f4 253 if (obj->uart == UART_2) {
mbed_official 181:a4cbdfbbd2f4 254 irq_n = USART2_IRQn;
mbed_official 181:a4cbdfbbd2f4 255 vector = (uint32_t)&uart2_irq;
mbed_official 181:a4cbdfbbd2f4 256 }
mbed_official 181:a4cbdfbbd2f4 257
mbed_official 181:a4cbdfbbd2f4 258 if (obj->uart == LPUART_1) {
mbed_official 181:a4cbdfbbd2f4 259 irq_n = RNG_LPUART1_IRQn;
mbed_official 181:a4cbdfbbd2f4 260 vector = (uint32_t)&lpuart1_irq;
mbed_official 181:a4cbdfbbd2f4 261 }
mbed_official 181:a4cbdfbbd2f4 262
mbed_official 181:a4cbdfbbd2f4 263 if (enable) {
mbed_official 181:a4cbdfbbd2f4 264
mbed_official 181:a4cbdfbbd2f4 265 if (irq == RxIrq) {
mbed_official 181:a4cbdfbbd2f4 266 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 181:a4cbdfbbd2f4 267 } else { // TxIrq
mbed_official 181:a4cbdfbbd2f4 268 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 181:a4cbdfbbd2f4 269 }
mbed_official 181:a4cbdfbbd2f4 270
mbed_official 181:a4cbdfbbd2f4 271 NVIC_SetVector(irq_n, vector);
mbed_official 181:a4cbdfbbd2f4 272 NVIC_EnableIRQ(irq_n);
mbed_official 181:a4cbdfbbd2f4 273
mbed_official 181:a4cbdfbbd2f4 274 } else { // disable
mbed_official 181:a4cbdfbbd2f4 275
mbed_official 181:a4cbdfbbd2f4 276 int all_disabled = 0;
mbed_official 181:a4cbdfbbd2f4 277
mbed_official 181:a4cbdfbbd2f4 278 if (irq == RxIrq) {
mbed_official 181:a4cbdfbbd2f4 279 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 181:a4cbdfbbd2f4 280 // Check if TxIrq is disabled too
mbed_official 181:a4cbdfbbd2f4 281 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 181:a4cbdfbbd2f4 282 } else { // TxIrq
mbed_official 181:a4cbdfbbd2f4 283 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 181:a4cbdfbbd2f4 284 // Check if RxIrq is disabled too
mbed_official 181:a4cbdfbbd2f4 285 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 181:a4cbdfbbd2f4 286 }
mbed_official 181:a4cbdfbbd2f4 287
mbed_official 181:a4cbdfbbd2f4 288 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 181:a4cbdfbbd2f4 289
mbed_official 181:a4cbdfbbd2f4 290 }
mbed_official 181:a4cbdfbbd2f4 291 }
mbed_official 181:a4cbdfbbd2f4 292
mbed_official 181:a4cbdfbbd2f4 293 /******************************************************************************
mbed_official 181:a4cbdfbbd2f4 294 * READ/WRITE
mbed_official 181:a4cbdfbbd2f4 295 ******************************************************************************/
mbed_official 181:a4cbdfbbd2f4 296
mbed_official 181:a4cbdfbbd2f4 297 int serial_getc(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 298 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 299 while (!serial_readable(obj));
mbed_official 181:a4cbdfbbd2f4 300 return (int)(uart->RDR & 0xFF);
mbed_official 181:a4cbdfbbd2f4 301 }
mbed_official 181:a4cbdfbbd2f4 302
mbed_official 181:a4cbdfbbd2f4 303 void serial_putc(serial_t *obj, int c) {
mbed_official 181:a4cbdfbbd2f4 304 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 305 while (!serial_writable(obj));
mbed_official 242:7074e42da0b2 306 uart->TDR = (uint16_t)(c & 0xFF);
mbed_official 181:a4cbdfbbd2f4 307 }
mbed_official 181:a4cbdfbbd2f4 308
mbed_official 181:a4cbdfbbd2f4 309 int serial_readable(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 310 int status;
mbed_official 181:a4cbdfbbd2f4 311 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 312 // Check if data is received
mbed_official 181:a4cbdfbbd2f4 313 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 181:a4cbdfbbd2f4 314 return status;
mbed_official 181:a4cbdfbbd2f4 315 }
mbed_official 181:a4cbdfbbd2f4 316
mbed_official 181:a4cbdfbbd2f4 317 int serial_writable(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 318 int status;
mbed_official 181:a4cbdfbbd2f4 319 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 320 // Check if data is transmitted
mbed_official 181:a4cbdfbbd2f4 321 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 181:a4cbdfbbd2f4 322 return status;
mbed_official 181:a4cbdfbbd2f4 323 }
mbed_official 181:a4cbdfbbd2f4 324
mbed_official 181:a4cbdfbbd2f4 325 void serial_clear(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 326 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 327 __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF);
mbed_official 181:a4cbdfbbd2f4 328 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 181:a4cbdfbbd2f4 329 }
mbed_official 181:a4cbdfbbd2f4 330
mbed_official 181:a4cbdfbbd2f4 331 void serial_pinout_tx(PinName tx) {
mbed_official 181:a4cbdfbbd2f4 332 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 333 }
mbed_official 181:a4cbdfbbd2f4 334
mbed_official 181:a4cbdfbbd2f4 335 void serial_break_set(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 336 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 337 __HAL_UART_SEND_REQ(&UartHandle, UART_SENDBREAK_REQUEST);
mbed_official 181:a4cbdfbbd2f4 338 }
mbed_official 181:a4cbdfbbd2f4 339
mbed_official 181:a4cbdfbbd2f4 340 void serial_break_clear(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 341 }
mbed_official 181:a4cbdfbbd2f4 342
mbed_official 181:a4cbdfbbd2f4 343 #endif