I am interfacing single led with lpc2148.I got simulation result. But i am not getting it on the board.I have written the following program to interface the led.
#include "LPC21xx.h"
void wait(void ) { int j=0;
for(j=0;j<1000000;j++); /*wait for one second*/
}
int main (void) { IODIR0 = 0x10000000; /* P0.28 defined as Output */ PINSEL1= 0x00000000; while (1) { /* Loop forever */
IOSET0 = 0x10000000; /* Turn on LED */
wait(); /* call wait function */
IOCLR0 = 0x10000000; /* Turn off LED */
wait();
................................................... what modifications i have to do to get output..kindly help me..
Sorry for not following the instructions to post a message. I am new to the embedded c. I am using Keil microvision 4 and flash program to transfer program to chip. simulation result i am getting but on board its not happening. i am using ngx lpc2148 blueboard. The voltage on pins same before and after the programming.
#include "LPC21xx.h" void wait(void ) { int j=0; for(j=0;j<1000000;j++); /*wait for one second*/ } int main (void) { IODIR0 = 0x10000000; /* P0.28 defined as Output */ PINSEL1= 0x00000000; while (1) { /* Loop forever */ IOSET0 = 0x10000000; /* Turn on LED */ wait(); /* call wait function */ IOCLR0 = 0x10000000; /* Turn off LED */ wait(); } }
I am not getting your suggestion.please can you elaborate it.
thank you..
And you did not notice that when you cut/pasted the broken source code from the original post into this new post, the lost line breaks are still lost?
And the only thing you have now said about your debugging attempts is that the voltages on some pins (which I have to guess is the LED pins) are not changing.
You didn't tell if they where high or low. You didn't tell if they are in tristate or if they are weakly or strongly held at their current state. You didn't tell if you have tried to single-step the program. You didn't tell if you have tried to read back the program to verify that you really have any program in the chip. You didn't tell if you have tried to download any other example program.
I want to interface led with lpc2148 by using with port and without port. I measured the voltages of all the pins and come to know that all the pins have same voltage before and after the programming.I have downloaded the program into chip through flash program.Kindly advise me how to interface led by using with port and without port.
and, in the whole internet, you haven't been able to find one example that does this?
No. I am not getting the output on the board but simulation is happenning.
Maybe you delay function is not working on target...? Saying "it does not work" will not help yourself or anybody else. Search for delay functions on this forum.