These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
UART/Polling/uart_polling_test.c@0:bf7b9fba3924, 2011-03-20 (annotated)
- Committer:
- frank26080115
- Date:
- Sun Mar 20 05:38:56 2011 +0000
- Revision:
- 0:bf7b9fba3924
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
frank26080115 | 0:bf7b9fba3924 | 1 | /***********************************************************************//** |
frank26080115 | 0:bf7b9fba3924 | 2 | * @file uart_polling_test.c |
frank26080115 | 0:bf7b9fba3924 | 3 | * @purpose This example describes how to using UART in polling mode |
frank26080115 | 0:bf7b9fba3924 | 4 | * @version 2.0 |
frank26080115 | 0:bf7b9fba3924 | 5 | * @date 21. May. 2010 |
frank26080115 | 0:bf7b9fba3924 | 6 | * @author NXP MCU SW Application Team |
frank26080115 | 0:bf7b9fba3924 | 7 | *--------------------------------------------------------------------- |
frank26080115 | 0:bf7b9fba3924 | 8 | * Software that is described herein is for illustrative purposes only |
frank26080115 | 0:bf7b9fba3924 | 9 | * which provides customers with programming information regarding the |
frank26080115 | 0:bf7b9fba3924 | 10 | * products. This software is supplied "AS IS" without any warranties. |
frank26080115 | 0:bf7b9fba3924 | 11 | * NXP Semiconductors assumes no responsibility or liability for the |
frank26080115 | 0:bf7b9fba3924 | 12 | * use of the software, conveys no license or title under any patent, |
frank26080115 | 0:bf7b9fba3924 | 13 | * copyright, or mask work right to the product. NXP Semiconductors |
frank26080115 | 0:bf7b9fba3924 | 14 | * reserves the right to make changes in the software without |
frank26080115 | 0:bf7b9fba3924 | 15 | * notification. NXP Semiconductors also make no representation or |
frank26080115 | 0:bf7b9fba3924 | 16 | * warranty that such application will be suitable for the specified |
frank26080115 | 0:bf7b9fba3924 | 17 | * use without further testing or modification. |
frank26080115 | 0:bf7b9fba3924 | 18 | **********************************************************************/ |
frank26080115 | 0:bf7b9fba3924 | 19 | #include "lpc17xx_uart.h" |
frank26080115 | 0:bf7b9fba3924 | 20 | #include "lpc17xx_libcfg.h" |
frank26080115 | 0:bf7b9fba3924 | 21 | #include "lpc17xx_pinsel.h" |
frank26080115 | 0:bf7b9fba3924 | 22 | |
frank26080115 | 0:bf7b9fba3924 | 23 | /* Example group ----------------------------------------------------------- */ |
frank26080115 | 0:bf7b9fba3924 | 24 | /** @defgroup UART_Polling Polling |
frank26080115 | 0:bf7b9fba3924 | 25 | * @ingroup UART_Examples |
frank26080115 | 0:bf7b9fba3924 | 26 | * @{ |
frank26080115 | 0:bf7b9fba3924 | 27 | */ |
frank26080115 | 0:bf7b9fba3924 | 28 | |
frank26080115 | 0:bf7b9fba3924 | 29 | /************************** PRIVATE DEFINITIONS *************************/ |
frank26080115 | 0:bf7b9fba3924 | 30 | #define UART_PORT 0 |
frank26080115 | 0:bf7b9fba3924 | 31 | |
frank26080115 | 0:bf7b9fba3924 | 32 | #if (UART_PORT == 0) |
frank26080115 | 0:bf7b9fba3924 | 33 | #define TEST_UART LPC_UART0 |
frank26080115 | 0:bf7b9fba3924 | 34 | #elif (UART_PORT == 1) |
frank26080115 | 0:bf7b9fba3924 | 35 | #define TEST_UART (LPC_UART_TypeDef *)UART1 |
frank26080115 | 0:bf7b9fba3924 | 36 | #endif |
frank26080115 | 0:bf7b9fba3924 | 37 | |
frank26080115 | 0:bf7b9fba3924 | 38 | |
frank26080115 | 0:bf7b9fba3924 | 39 | /************************** PRIVATE VARIABLES *************************/ |
frank26080115 | 0:bf7b9fba3924 | 40 | uint8_t menu1[] = "Hello NXP Semiconductors \n\r"; |
frank26080115 | 0:bf7b9fba3924 | 41 | uint8_t menu2[] = "UART polling mode demo \n\r\t MCU LPC17xx - ARM Cortex-M3 \n\r\t UART0 - 9600bps \n\r"; |
frank26080115 | 0:bf7b9fba3924 | 42 | uint8_t menu3[] = "UART demo terminated!"; |
frank26080115 | 0:bf7b9fba3924 | 43 | |
frank26080115 | 0:bf7b9fba3924 | 44 | /************************** PRIVATE FUNCTIONS *************************/ |
frank26080115 | 0:bf7b9fba3924 | 45 | void print_menu(void); |
frank26080115 | 0:bf7b9fba3924 | 46 | |
frank26080115 | 0:bf7b9fba3924 | 47 | /*-------------------------PRIVATE FUNCTIONS------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 48 | /*********************************************************************//** |
frank26080115 | 0:bf7b9fba3924 | 49 | * @brief Print Welcome menu |
frank26080115 | 0:bf7b9fba3924 | 50 | * @param[in] none |
frank26080115 | 0:bf7b9fba3924 | 51 | * @return None |
frank26080115 | 0:bf7b9fba3924 | 52 | **********************************************************************/ |
frank26080115 | 0:bf7b9fba3924 | 53 | void print_menu(void) |
frank26080115 | 0:bf7b9fba3924 | 54 | { |
frank26080115 | 0:bf7b9fba3924 | 55 | UART_Send(TEST_UART, menu1, sizeof(menu1), BLOCKING); |
frank26080115 | 0:bf7b9fba3924 | 56 | UART_Send(TEST_UART, menu2, sizeof(menu2), BLOCKING); |
frank26080115 | 0:bf7b9fba3924 | 57 | } |
frank26080115 | 0:bf7b9fba3924 | 58 | |
frank26080115 | 0:bf7b9fba3924 | 59 | |
frank26080115 | 0:bf7b9fba3924 | 60 | |
frank26080115 | 0:bf7b9fba3924 | 61 | /*-------------------------MAIN FUNCTION------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 62 | /*********************************************************************//** |
frank26080115 | 0:bf7b9fba3924 | 63 | * @brief c_entry: Main UART program body |
frank26080115 | 0:bf7b9fba3924 | 64 | * @param[in] None |
frank26080115 | 0:bf7b9fba3924 | 65 | * @return int |
frank26080115 | 0:bf7b9fba3924 | 66 | **********************************************************************/ |
frank26080115 | 0:bf7b9fba3924 | 67 | int c_entry(void) |
frank26080115 | 0:bf7b9fba3924 | 68 | { |
frank26080115 | 0:bf7b9fba3924 | 69 | // UART Configuration structure variable |
frank26080115 | 0:bf7b9fba3924 | 70 | UART_CFG_Type UARTConfigStruct; |
frank26080115 | 0:bf7b9fba3924 | 71 | // UART FIFO configuration Struct variable |
frank26080115 | 0:bf7b9fba3924 | 72 | UART_FIFO_CFG_Type UARTFIFOConfigStruct; |
frank26080115 | 0:bf7b9fba3924 | 73 | // Pin configuration for UART0 |
frank26080115 | 0:bf7b9fba3924 | 74 | PINSEL_CFG_Type PinCfg; |
frank26080115 | 0:bf7b9fba3924 | 75 | |
frank26080115 | 0:bf7b9fba3924 | 76 | uint32_t idx, len; |
frank26080115 | 0:bf7b9fba3924 | 77 | __IO FlagStatus exitflag; |
frank26080115 | 0:bf7b9fba3924 | 78 | uint8_t buffer[10]; |
frank26080115 | 0:bf7b9fba3924 | 79 | |
frank26080115 | 0:bf7b9fba3924 | 80 | #if (UART_PORT == 0) |
frank26080115 | 0:bf7b9fba3924 | 81 | /* |
frank26080115 | 0:bf7b9fba3924 | 82 | * Initialize UART0 pin connect |
frank26080115 | 0:bf7b9fba3924 | 83 | */ |
frank26080115 | 0:bf7b9fba3924 | 84 | PinCfg.Funcnum = 1; |
frank26080115 | 0:bf7b9fba3924 | 85 | PinCfg.OpenDrain = 0; |
frank26080115 | 0:bf7b9fba3924 | 86 | PinCfg.Pinmode = 0; |
frank26080115 | 0:bf7b9fba3924 | 87 | PinCfg.Pinnum = 2; |
frank26080115 | 0:bf7b9fba3924 | 88 | PinCfg.Portnum = 0; |
frank26080115 | 0:bf7b9fba3924 | 89 | PINSEL_ConfigPin(&PinCfg); |
frank26080115 | 0:bf7b9fba3924 | 90 | PinCfg.Pinnum = 3; |
frank26080115 | 0:bf7b9fba3924 | 91 | PINSEL_ConfigPin(&PinCfg); |
frank26080115 | 0:bf7b9fba3924 | 92 | #endif |
frank26080115 | 0:bf7b9fba3924 | 93 | |
frank26080115 | 0:bf7b9fba3924 | 94 | #if (UART_PORT == 1) |
frank26080115 | 0:bf7b9fba3924 | 95 | /* |
frank26080115 | 0:bf7b9fba3924 | 96 | * Initialize UART1 pin connect |
frank26080115 | 0:bf7b9fba3924 | 97 | */ |
frank26080115 | 0:bf7b9fba3924 | 98 | PinCfg.Funcnum = 2; |
frank26080115 | 0:bf7b9fba3924 | 99 | PinCfg.OpenDrain = 0; |
frank26080115 | 0:bf7b9fba3924 | 100 | PinCfg.Pinmode = 0; |
frank26080115 | 0:bf7b9fba3924 | 101 | PinCfg.Pinnum = 0; |
frank26080115 | 0:bf7b9fba3924 | 102 | PinCfg.Portnum = 2; |
frank26080115 | 0:bf7b9fba3924 | 103 | PINSEL_ConfigPin(&PinCfg); |
frank26080115 | 0:bf7b9fba3924 | 104 | PinCfg.Pinnum = 1; |
frank26080115 | 0:bf7b9fba3924 | 105 | PINSEL_ConfigPin(&PinCfg); |
frank26080115 | 0:bf7b9fba3924 | 106 | #endif |
frank26080115 | 0:bf7b9fba3924 | 107 | |
frank26080115 | 0:bf7b9fba3924 | 108 | /* Initialize UART Configuration parameter structure to default state: |
frank26080115 | 0:bf7b9fba3924 | 109 | * Baudrate = 9600bps |
frank26080115 | 0:bf7b9fba3924 | 110 | * 8 data bit |
frank26080115 | 0:bf7b9fba3924 | 111 | * 1 Stop bit |
frank26080115 | 0:bf7b9fba3924 | 112 | * None parity |
frank26080115 | 0:bf7b9fba3924 | 113 | */ |
frank26080115 | 0:bf7b9fba3924 | 114 | UART_ConfigStructInit(&UARTConfigStruct); |
frank26080115 | 0:bf7b9fba3924 | 115 | |
frank26080115 | 0:bf7b9fba3924 | 116 | // Initialize UART0 peripheral with given to corresponding parameter |
frank26080115 | 0:bf7b9fba3924 | 117 | UART_Init(TEST_UART, &UARTConfigStruct); |
frank26080115 | 0:bf7b9fba3924 | 118 | |
frank26080115 | 0:bf7b9fba3924 | 119 | /* Initialize FIFOConfigStruct to default state: |
frank26080115 | 0:bf7b9fba3924 | 120 | * - FIFO_DMAMode = DISABLE |
frank26080115 | 0:bf7b9fba3924 | 121 | * - FIFO_Level = UART_FIFO_TRGLEV0 |
frank26080115 | 0:bf7b9fba3924 | 122 | * - FIFO_ResetRxBuf = ENABLE |
frank26080115 | 0:bf7b9fba3924 | 123 | * - FIFO_ResetTxBuf = ENABLE |
frank26080115 | 0:bf7b9fba3924 | 124 | * - FIFO_State = ENABLE |
frank26080115 | 0:bf7b9fba3924 | 125 | */ |
frank26080115 | 0:bf7b9fba3924 | 126 | UART_FIFOConfigStructInit(&UARTFIFOConfigStruct); |
frank26080115 | 0:bf7b9fba3924 | 127 | |
frank26080115 | 0:bf7b9fba3924 | 128 | // Initialize FIFO for UART0 peripheral |
frank26080115 | 0:bf7b9fba3924 | 129 | UART_FIFOConfig(TEST_UART, &UARTFIFOConfigStruct); |
frank26080115 | 0:bf7b9fba3924 | 130 | |
frank26080115 | 0:bf7b9fba3924 | 131 | |
frank26080115 | 0:bf7b9fba3924 | 132 | // Enable UART Transmit |
frank26080115 | 0:bf7b9fba3924 | 133 | UART_TxCmd(TEST_UART, ENABLE); |
frank26080115 | 0:bf7b9fba3924 | 134 | |
frank26080115 | 0:bf7b9fba3924 | 135 | // print welcome screen |
frank26080115 | 0:bf7b9fba3924 | 136 | print_menu(); |
frank26080115 | 0:bf7b9fba3924 | 137 | |
frank26080115 | 0:bf7b9fba3924 | 138 | // Reset exit flag |
frank26080115 | 0:bf7b9fba3924 | 139 | exitflag = RESET; |
frank26080115 | 0:bf7b9fba3924 | 140 | |
frank26080115 | 0:bf7b9fba3924 | 141 | /* Read some data from the buffer */ |
frank26080115 | 0:bf7b9fba3924 | 142 | while (exitflag == RESET) |
frank26080115 | 0:bf7b9fba3924 | 143 | { |
frank26080115 | 0:bf7b9fba3924 | 144 | len = 0; |
frank26080115 | 0:bf7b9fba3924 | 145 | while (len == 0) |
frank26080115 | 0:bf7b9fba3924 | 146 | { |
frank26080115 | 0:bf7b9fba3924 | 147 | len = UART_Receive(TEST_UART, buffer, sizeof(buffer), NONE_BLOCKING); |
frank26080115 | 0:bf7b9fba3924 | 148 | } |
frank26080115 | 0:bf7b9fba3924 | 149 | |
frank26080115 | 0:bf7b9fba3924 | 150 | /* Got some data */ |
frank26080115 | 0:bf7b9fba3924 | 151 | idx = 0; |
frank26080115 | 0:bf7b9fba3924 | 152 | while (idx < len) |
frank26080115 | 0:bf7b9fba3924 | 153 | { |
frank26080115 | 0:bf7b9fba3924 | 154 | if (buffer[idx] == 27) |
frank26080115 | 0:bf7b9fba3924 | 155 | { |
frank26080115 | 0:bf7b9fba3924 | 156 | /* ESC key, set exit flag */ |
frank26080115 | 0:bf7b9fba3924 | 157 | UART_Send(TEST_UART, menu3, sizeof(menu3), BLOCKING); |
frank26080115 | 0:bf7b9fba3924 | 158 | exitflag = SET; |
frank26080115 | 0:bf7b9fba3924 | 159 | } |
frank26080115 | 0:bf7b9fba3924 | 160 | else if (buffer[idx] == 'r') |
frank26080115 | 0:bf7b9fba3924 | 161 | { |
frank26080115 | 0:bf7b9fba3924 | 162 | print_menu(); |
frank26080115 | 0:bf7b9fba3924 | 163 | } |
frank26080115 | 0:bf7b9fba3924 | 164 | else |
frank26080115 | 0:bf7b9fba3924 | 165 | { |
frank26080115 | 0:bf7b9fba3924 | 166 | /* Echo it back */ |
frank26080115 | 0:bf7b9fba3924 | 167 | UART_Send(TEST_UART, &buffer[idx], 1, BLOCKING); |
frank26080115 | 0:bf7b9fba3924 | 168 | } |
frank26080115 | 0:bf7b9fba3924 | 169 | idx++; |
frank26080115 | 0:bf7b9fba3924 | 170 | } |
frank26080115 | 0:bf7b9fba3924 | 171 | } |
frank26080115 | 0:bf7b9fba3924 | 172 | |
frank26080115 | 0:bf7b9fba3924 | 173 | // wait for current transmission complete - THR must be empty |
frank26080115 | 0:bf7b9fba3924 | 174 | while (UART_CheckBusy(TEST_UART) == SET); |
frank26080115 | 0:bf7b9fba3924 | 175 | |
frank26080115 | 0:bf7b9fba3924 | 176 | // DeInitialize UART0 peripheral |
frank26080115 | 0:bf7b9fba3924 | 177 | UART_DeInit(TEST_UART); |
frank26080115 | 0:bf7b9fba3924 | 178 | |
frank26080115 | 0:bf7b9fba3924 | 179 | /* Loop forever */ |
frank26080115 | 0:bf7b9fba3924 | 180 | while(1); |
frank26080115 | 0:bf7b9fba3924 | 181 | return 1; |
frank26080115 | 0:bf7b9fba3924 | 182 | } |
frank26080115 | 0:bf7b9fba3924 | 183 | |
frank26080115 | 0:bf7b9fba3924 | 184 | /* With ARM and GHS toolsets, the entry point is main() - this will |
frank26080115 | 0:bf7b9fba3924 | 185 | allow the linker to generate wrapper code to setup stacks, allocate |
frank26080115 | 0:bf7b9fba3924 | 186 | heap area, and initialize and copy code and data segments. For GNU |
frank26080115 | 0:bf7b9fba3924 | 187 | toolsets, the entry point is through __start() in the crt0_gnu.asm |
frank26080115 | 0:bf7b9fba3924 | 188 | file, and that startup code will setup stacks and data */ |
frank26080115 | 0:bf7b9fba3924 | 189 | int main(void) |
frank26080115 | 0:bf7b9fba3924 | 190 | { |
frank26080115 | 0:bf7b9fba3924 | 191 | return c_entry(); |
frank26080115 | 0:bf7b9fba3924 | 192 | } |
frank26080115 | 0:bf7b9fba3924 | 193 | |
frank26080115 | 0:bf7b9fba3924 | 194 | |
frank26080115 | 0:bf7b9fba3924 | 195 | #ifdef DEBUG |
frank26080115 | 0:bf7b9fba3924 | 196 | /******************************************************************************* |
frank26080115 | 0:bf7b9fba3924 | 197 | * @brief Reports the name of the source file and the source line number |
frank26080115 | 0:bf7b9fba3924 | 198 | * where the CHECK_PARAM error has occurred. |
frank26080115 | 0:bf7b9fba3924 | 199 | * @param[in] file Pointer to the source file name |
frank26080115 | 0:bf7b9fba3924 | 200 | * @param[in] line assert_param error line source number |
frank26080115 | 0:bf7b9fba3924 | 201 | * @return None |
frank26080115 | 0:bf7b9fba3924 | 202 | *******************************************************************************/ |
frank26080115 | 0:bf7b9fba3924 | 203 | void check_failed(uint8_t *file, uint32_t line) |
frank26080115 | 0:bf7b9fba3924 | 204 | { |
frank26080115 | 0:bf7b9fba3924 | 205 | /* User can add his own implementation to report the file name and line number, |
frank26080115 | 0:bf7b9fba3924 | 206 | ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ |
frank26080115 | 0:bf7b9fba3924 | 207 | |
frank26080115 | 0:bf7b9fba3924 | 208 | /* Infinite loop */ |
frank26080115 | 0:bf7b9fba3924 | 209 | while(1); |
frank26080115 | 0:bf7b9fba3924 | 210 | } |
frank26080115 | 0:bf7b9fba3924 | 211 | #endif |
frank26080115 | 0:bf7b9fba3924 | 212 | |
frank26080115 | 0:bf7b9fba3924 | 213 | /* |
frank26080115 | 0:bf7b9fba3924 | 214 | * @} |
frank26080115 | 0:bf7b9fba3924 | 215 | */ |