Unable to program GPIO pins on ngx xplorer with blinky example

lpcware — Wed, 15 Jun 2016 18:49:49 GMT

Content originally posted in LPCWare by verybadalloc on Mon Mar 07 20:49:34 MST 2016
Hello there,

I am having a very basic issue with the NGX Xplorer 4330, whereby I am unable to program any pin other than the LED ones. I know that I can control the LED pins because I am connecting it to an oscilloscope, and I can see the voltage levels toggling.
I am using Xplorer 8.0, with an LPC Link 2 for programmer.
Here is the code I am using:

#include "board.h"
#include <stdio.h>

const uint32_t ExtRateIn = 0;
const uint32_t OscRateIn = 12000000;

#define TICKRATE_HZ1 (1000)/* 10 ticks per second */

void SysTick_Handler(void) {
Chip_GPIO_SetPinState(LPC_GPIO_PORT, 0, 1, state);
Chip_GPIO_SetPinState(LPC_GPIO_PORT, 1, 12, state);
state = !state;
}

int main(void)
{
SystemCoreClockUpdate();
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 1, 12);
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 0, 1);

/* Enable and setup SysTick Timer at a periodic rate */
SysTick_Config(SystemCoreClock / TICKRATE_HZ1);

while (1) {
__WFI();
}
return 0;
}

As you can see, the same logic is applied to both the LED pin (GPIO1[12]), and that of GPIO0[1] (I took this pin randomly, none of the other pins work either),

Is there anything that I am missing in my setup that would explain why I can't write to this pin? Any help would be greatly appreciated.

Thank you!

Re: Unable to program GPIO pins on ngx xplorer with blinky example

lpcware — Wed, 15 Jun 2016 18:49:50 GMT

Content originally posted in LPCWare by bavarian on Fri Mar 11 06:41:50 MST 2016
Do you configure the pins used by GPIO1[12] and GPIO0[1] in the same way as the pins which are used for the LEDs?

Look for Chip_IOCON_PinMux(...) or Chip_IOCON_SetPinMuxing(...).

Maybe these two pins (P0_1 and P2-12) are not set to GPIO function. In this case your GPIO configuration is useless, because the multiplexer just in front of the pin is set to another function.

Regards,
NXP Support Team

Re: Unable to program GPIO pins on ngx xplorer with blinky example

lpcware — Sun, 19 Jun 2016 01:04:18 GMT

bump

topic Unable to program GPIO pins on ngx xplorer with blinky example in LPC Microcontrollers

Unable to program GPIO pins on ngx xplorer with blinky example

Re: Unable to program GPIO pins on ngx xplorer with blinky example

Re: Unable to program GPIO pins on ngx xplorer with blinky example