These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
Diff: UART/Polling/uart_polling_test.c
- Revision:
- 0:bf7b9fba3924
diff -r 000000000000 -r bf7b9fba3924 UART/Polling/uart_polling_test.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/UART/Polling/uart_polling_test.c Sun Mar 20 05:38:56 2011 +0000 @@ -0,0 +1,215 @@ +/***********************************************************************//** + * @file uart_polling_test.c + * @purpose This example describes how to using UART in polling mode + * @version 2.0 + * @date 21. May. 2010 + * @author NXP MCU SW Application Team + *--------------------------------------------------------------------- + * Software that is described herein is for illustrative purposes only + * which provides customers with programming information regarding the + * products. This software is supplied "AS IS" without any warranties. + * NXP Semiconductors assumes no responsibility or liability for the + * use of the software, conveys no license or title under any patent, + * copyright, or mask work right to the product. NXP Semiconductors + * reserves the right to make changes in the software without + * notification. NXP Semiconductors also make no representation or + * warranty that such application will be suitable for the specified + * use without further testing or modification. + **********************************************************************/ +#include "lpc17xx_uart.h" +#include "lpc17xx_libcfg.h" +#include "lpc17xx_pinsel.h" + +/* Example group ----------------------------------------------------------- */ +/** @defgroup UART_Polling Polling + * @ingroup UART_Examples + * @{ + */ + +/************************** PRIVATE DEFINITIONS *************************/ +#define UART_PORT 0 + +#if (UART_PORT == 0) +#define TEST_UART LPC_UART0 +#elif (UART_PORT == 1) +#define TEST_UART (LPC_UART_TypeDef *)UART1 +#endif + + +/************************** PRIVATE VARIABLES *************************/ +uint8_t menu1[] = "Hello NXP Semiconductors \n\r"; +uint8_t menu2[] = "UART polling mode demo \n\r\t MCU LPC17xx - ARM Cortex-M3 \n\r\t UART0 - 9600bps \n\r"; +uint8_t menu3[] = "UART demo terminated!"; + +/************************** PRIVATE FUNCTIONS *************************/ +void print_menu(void); + +/*-------------------------PRIVATE FUNCTIONS------------------------------*/ +/*********************************************************************//** + * @brief Print Welcome menu + * @param[in] none + * @return None + **********************************************************************/ +void print_menu(void) +{ + UART_Send(TEST_UART, menu1, sizeof(menu1), BLOCKING); + UART_Send(TEST_UART, menu2, sizeof(menu2), BLOCKING); +} + + + +/*-------------------------MAIN FUNCTION------------------------------*/ +/*********************************************************************//** + * @brief c_entry: Main UART program body + * @param[in] None + * @return int + **********************************************************************/ +int c_entry(void) +{ + // UART Configuration structure variable + UART_CFG_Type UARTConfigStruct; + // UART FIFO configuration Struct variable + UART_FIFO_CFG_Type UARTFIFOConfigStruct; + // Pin configuration for UART0 + PINSEL_CFG_Type PinCfg; + + uint32_t idx, len; + __IO FlagStatus exitflag; + uint8_t buffer[10]; + +#if (UART_PORT == 0) + /* + * Initialize UART0 pin connect + */ + PinCfg.Funcnum = 1; + PinCfg.OpenDrain = 0; + PinCfg.Pinmode = 0; + PinCfg.Pinnum = 2; + PinCfg.Portnum = 0; + PINSEL_ConfigPin(&PinCfg); + PinCfg.Pinnum = 3; + PINSEL_ConfigPin(&PinCfg); +#endif + +#if (UART_PORT == 1) + /* + * Initialize UART1 pin connect + */ + PinCfg.Funcnum = 2; + PinCfg.OpenDrain = 0; + PinCfg.Pinmode = 0; + PinCfg.Pinnum = 0; + PinCfg.Portnum = 2; + PINSEL_ConfigPin(&PinCfg); + PinCfg.Pinnum = 1; + PINSEL_ConfigPin(&PinCfg); +#endif + + /* Initialize UART Configuration parameter structure to default state: + * Baudrate = 9600bps + * 8 data bit + * 1 Stop bit + * None parity + */ + UART_ConfigStructInit(&UARTConfigStruct); + + // Initialize UART0 peripheral with given to corresponding parameter + UART_Init(TEST_UART, &UARTConfigStruct); + + /* Initialize FIFOConfigStruct to default state: + * - FIFO_DMAMode = DISABLE + * - FIFO_Level = UART_FIFO_TRGLEV0 + * - FIFO_ResetRxBuf = ENABLE + * - FIFO_ResetTxBuf = ENABLE + * - FIFO_State = ENABLE + */ + UART_FIFOConfigStructInit(&UARTFIFOConfigStruct); + + // Initialize FIFO for UART0 peripheral + UART_FIFOConfig(TEST_UART, &UARTFIFOConfigStruct); + + + // Enable UART Transmit + UART_TxCmd(TEST_UART, ENABLE); + + // print welcome screen + print_menu(); + + // Reset exit flag + exitflag = RESET; + + /* Read some data from the buffer */ + while (exitflag == RESET) + { + len = 0; + while (len == 0) + { + len = UART_Receive(TEST_UART, buffer, sizeof(buffer), NONE_BLOCKING); + } + + /* Got some data */ + idx = 0; + while (idx < len) + { + if (buffer[idx] == 27) + { + /* ESC key, set exit flag */ + UART_Send(TEST_UART, menu3, sizeof(menu3), BLOCKING); + exitflag = SET; + } + else if (buffer[idx] == 'r') + { + print_menu(); + } + else + { + /* Echo it back */ + UART_Send(TEST_UART, &buffer[idx], 1, BLOCKING); + } + idx++; + } + } + + // wait for current transmission complete - THR must be empty + while (UART_CheckBusy(TEST_UART) == SET); + + // DeInitialize UART0 peripheral + UART_DeInit(TEST_UART); + + /* Loop forever */ + while(1); + return 1; +} + +/* With ARM and GHS toolsets, the entry point is main() - this will + allow the linker to generate wrapper code to setup stacks, allocate + heap area, and initialize and copy code and data segments. For GNU + toolsets, the entry point is through __start() in the crt0_gnu.asm + file, and that startup code will setup stacks and data */ +int main(void) +{ + return c_entry(); +} + + +#ifdef DEBUG +/******************************************************************************* +* @brief Reports the name of the source file and the source line number +* where the CHECK_PARAM error has occurred. +* @param[in] file Pointer to the source file name +* @param[in] line assert_param error line source number +* @return None +*******************************************************************************/ +void check_failed(uint8_t *file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + /* Infinite loop */ + while(1); +} +#endif + +/* + * @} + */