topic LPC1313 toggling GPIO pins in LPC Microcontrollers

LPC1313 toggling GPIO pins

prachipanse — Mon, 15 May 2017 11:15:04 GMT

Hi,

I am using the LPC1313FBD48/01 controller to toggle some LEDs. I am using the LPCOpen library.

I observed in the GPIO registers that some GPIO outputs are not getting set (IOCON_PIO0_11 and IOCON_PIO1_10). Using the same procedure I am able to toggle the pin IOCON_PIO1_1.

Please suggest me what may be the issue.

Thanks and Regards.

Re: LPC1313 toggling GPIO pins

prachipanse — Tue, 16 May 2017 03:56:22 GMT

Hi,

I was able to find a workaround. The problem is seen when I use the Chip_GPIO_SetDir function to set the pin directions instead of Chip_GPIO_SetPinDIROutput. The Chip_GPIO_SetDir function doesn't seem to set the direction bits for some pins properly. However, I couldn't find the reason for the same.

Thanks and Regards.