These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
Diff: UART/IrDA/Receive/uart_irda_receive.c
- Revision:
- 0:bf7b9fba3924
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/UART/IrDA/Receive/uart_irda_receive.c Sun Mar 20 05:38:56 2011 +0000 @@ -0,0 +1,228 @@ +/*** + * @file uart_irda_receive.c + * @purpose This example describes how to using UART in irDA mode + * @version 2.0 + * @date 07. June. 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" +#include "lpc17xx_gpio.h" + +/* Example group ----------------------------------------------------------- */ +/** @defgroup UART_IrDA_Receive Receive + * @ingroup UART_IrDA_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 +#define TEST_IRDA LPC_UART3 + +/************************** PRIVATE VARIABLES *************************/ +uint8_t menu1[] = "Hello NXP Semiconductors \n\r"; +uint8_t menu2[] = "UART IrDA mode demo \n\r\t MCU LPC17xx - ARM Cortex-M3 \n\r\t UART0 - 9600bps communicates with PC \n\r\t UART3 - 9600bps receives infrared signal\n\r"; +uint8_t menu3[] = "\t The demo keep reading input infrared signal and display through 8 led bank \n\r"; +/************************** 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); + UART_Send(TEST_UART, menu3, sizeof(menu3), 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 len; + uint32_t led_mask[] = { 1<<28, 1<<29, 1UL<<31, 1<<2, 1<<3, 1<<4, 1<<5, 1<<6 }; + uint8_t buffer,i; + + //Initialize for 8 led bank + GPIO_SetDir(1, 0xB0000000, 1); /* LEDs on PORT1 defined as Output */ + GPIO_SetDir(2, 0x0000007C, 1); /* LEDs on PORT2 defined as Output */ + + GPIO_ClearValue(1, 0xB0000000); + GPIO_ClearValue(2, 0x0000007C); + +#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);//P0.2 TXD0 +#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 UART3 pin connect + */ + PinCfg.Funcnum = 3; + PinCfg.OpenDrain = 0; + PinCfg.Pinmode = 0; + PinCfg.Pinnum = 26; + PinCfg.Portnum = 0; + PINSEL_ConfigPin(&PinCfg);//P0.26 RXD3 + + /* Initialize UART Configuration parameter structure to default state: + * Baudrate = 9600bps + * 8 data bit + * 1 Stop bit + * None parity + */ + UART_ConfigStructInit(&UARTConfigStruct); + + // Initialize UART0 & UART3 peripheral with given to corresponding parameter + UART_Init(TEST_UART, &UARTConfigStruct); + UART_Init(TEST_IRDA, &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 & UART3 peripheral + UART_FIFOConfig(TEST_UART, &UARTFIFOConfigStruct); + UART_FIFOConfig(TEST_IRDA, &UARTFIFOConfigStruct); + //Configure and enable IrDA mode on UART + UART_IrDACmd(TEST_IRDA,ENABLE); + + // Enable UART Transmit + UART_TxCmd(TEST_UART, ENABLE); + + // print welcome screen + print_menu(); + + /* Read some data from the buffer */ + while (1) + { + len=0; + while(len==0) + { + len = UART_Receive(TEST_IRDA, &buffer, 1, NONE_BLOCKING); + } + if(buffer!=0) + { + for(i=0;i<8;i++) + { + if((buffer>>i)&0x01){//set + if(i<3) + GPIO_SetValue(1, led_mask[i]); + else + GPIO_SetValue(2, led_mask[i]); + } + else { //clear + if(i<3) + GPIO_ClearValue(1, led_mask[i]); + else + GPIO_ClearValue(2, led_mask[i]); + } + } + } + else //clear 8 led bank + { + GPIO_ClearValue(1, 0xB0000000); + GPIO_ClearValue(2, 0x0000007C); + } + } + + // 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 +/* + * @} + */