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Hi friends.I am new to ARM programming.I am working on NXP LPC1768 processor. There are 8 LED's interfaced to the processor as follows. LED0-P2.0 LED1-P2.1 LED2-P2.2 LED3-P2.3 LED4-P2.4 LED5-P2.5 LED6-P1.25 LED7-P1.26 i want to display the equivalent values of 0 to 255 on these LED's. When we use the FIOSET and set any particular pin only that pin gets set and provious pins remain unchanged. I have used following code.
#include "lpc17xx.h" #include "type.h" #include "delay.h" int main (void) { unsigned int i; unsigned long value=0; SystemInit(); LPC_GPIO2->FIODIR = 0x0000003F; while(1) { LPC_GPIO2->FIOCLR=0x0000003F; for(i=1;i<64;i++) { value=value+1; LPC_GPIO2->FIOSET=(value); delay_ms(100); } i=0; } }
The output is worng.Please suggest me. Thank you