These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
Diff: GPIO/GPIO_Interrupt/gpio_int.c
- Revision:
- 0:bf7b9fba3924
diff -r 000000000000 -r bf7b9fba3924 GPIO/GPIO_Interrupt/gpio_int.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/GPIO/GPIO_Interrupt/gpio_int.c Sun Mar 20 05:38:56 2011 +0000 @@ -0,0 +1,174 @@ +/***********************************************************************//** + * @file gpio_int.c + * @purpose This example used to test GPIO interrupt function + * @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.h" +#include "lpc17xx_gpio.h" +#include "lpc17xx_pinsel.h" +#include "lpc17xx_libcfg.h" + +/* Example group ----------------------------------------------------------- */ +/** @defgroup GPIO_Interrupt GPIO_Interrupt + * @ingroup GPIO_Examples + * @{ + */ + +/************************** PRIVATE DEFINITIONS *************************/ +#define MCB_LPC_1768 +//#define IAR_LPC_1768 + +#ifdef MCB_LPC_1768 +/* LED pin in byte style on P1 */ +#define POLL_LED (1<<4) // P1.28 +#define INT3_LED (1<<5) // P1.29 +#define GPIO_INT (1<<25) // test GPIO interrupt on P0.25 +#elif defined(IAR_LPC_1768) +#define POLL_LED (1<<1) //P1.25 (LED2) +#define INT3_LED (1<<4) //P0.4 (LED1) +#define GPIO_INT (1<<23) // test GPIO interrupt on P0.23 +#endif + + +/************************** PRIVATE FUNCTIONS *************************/ +void EINT3_IRQHandler(void); + +void delay (void); + +/*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/ +/*********************************************************************//** + * @brief External interrupt 3 handler sub-routine + * @param[in] None + * @return None + **********************************************************************/ +void EINT3_IRQHandler(void) +{ + int j; + if(GPIO_GetIntStatus(0, 25, 1)) + { + GPIO_ClearInt(0,(1<<25)); + for (j= 0; j<8; j++) + { +#ifdef MCB_LPC_1768 + /* Use MCB1700 board: + * blink LED P1.29 when EINT3 occur + */ + FIO_ByteSetValue(1, 3, INT3_LED); + delay(); + FIO_ByteClearValue(1, 3, INT3_LED); + delay(); +#elif defined(IAR_LPC_1768) + /* Use IAR LPC1768 KS board: + * blink LED2 P0.4 when EINT3 occur + */ + FIO_ByteSetValue(0, 0, INT3_LED); + delay(); + FIO_ByteClearValue(0, 0, INT3_LED); + delay(); +#endif + } + } +} + +/*-------------------------PRIVATE FUNCTIONS------------------------------*/ +/*********************************************************************//** + * @brief Delay function + * @param[in] None + * @return None + **********************************************************************/ +void delay (void) { + unsigned int i; + + for (i = 0; i < 0x100000; i++) { + } +} + + +/*-------------------------MAIN FUNCTION------------------------------*/ +/*********************************************************************//** + * @brief c_entry: Main program body + * @param[in] None + * @return int + **********************************************************************/ +int c_entry (void) +{ + /** Use: LEDs for polling when idle and when GPIO interrupt occurs + * If using MCB1700 board: Polling led: P1.28; Interrupt led: P1.29 + * If using IAR KS board: Polling led: P1.25 (LED1); Interrupt led: P0.4 (LED2) + */ +#ifdef MCB_LPC_1768 + FIO_ByteSetDir(1, 3, POLL_LED, 1); + FIO_ByteSetDir(1, 3, INT3_LED, 1); + // Turn off all LEDs + FIO_ByteClearValue(1, 3, POLL_LED); + FIO_ByteClearValue(1, 3, INT3_LED); +#elif defined(IAR_LPC_1768) + FIO_ByteSetDir(1, 3, POLL_LED, 1); + FIO_ByteSetDir(0, 0, INT3_LED, 1); + // Turn off all LEDs + FIO_ByteSetValue(1, 3, POLL_LED); + FIO_ByteSetValue(0, 0, INT3_LED); +#endif + + // Enable GPIO interrupt + /* Use MCB1700: test GPIO interrupt on P0.25->connects with ADC potentiometer + * Use IAR KS : test GPIO interrupt on P0.23->connects with BUT1 button + */ + GPIO_IntCmd(0,(1<<25),1); + NVIC_EnableIRQ(EINT3_IRQn); + + while (1) + { + //polling led while idle + FIO_ByteSetValue(1, 3, POLL_LED); + delay(); + FIO_ByteClearValue(1, 3, POLL_LED); + delay(); + } +} + + +/* 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 + +/* + * @} + */