Changing SD card configuration pins doesn't work on nrf52832

RE: Changing SD card configuration pins doesn't work on nrf52832

Piyush — Tue, 29 Aug 2017 11:33:32 GMT

Sorry my mistake. I forgot to add NRF52 before "CONFIG_NFCT_PINS_AS_GPIOS" in Options for target box. It works fine now. Thank you so much for answering my question so promptly. I appreciate your help.

RE: Changing SD card configuration pins doesn't work on nrf52832

Jørgen Holmefjord — Tue, 29 Aug 2017 11:15:42 GMT

Have you tested it with other pins than P0.09/P0.10, or checked the output with a logic analyzer?

RE: Changing SD card configuration pins doesn't work on nrf52832

Piyush — Tue, 29 Aug 2017 11:05:45 GMT

Thank you for your reply. Actually, I am trying to program an external nrf52832 chip using the nrf52 DK. There is no circuitry (LED and resistors) attached to pin 17 and pin 19 in the external chip rather they are directly connected to the SD card port so there is no concern of cutting the solder bridge. I have written "CONFIG_NFCT_PINS_AS_GPIOS" in Options for target box to configure NFC pins as GPIOs. FYI, pins PO.09 and PO.10 are also directly connected to SD card ports with no additional circuitry. But the SD card example doesn't seem to work on the external chip. Please help. Thanks!

RE: Changing SD card configuration pins doesn't work on nrf52832

Jørgen Holmefjord — Tue, 29 Aug 2017 08:39:27 GMT

Hi,

On the nRF52 DK, GPIO pins 9, 10, 17, and 19 are used for other purposes/peripherals:

P0.17: LED1
P0.19: LED3
P0.09: NFC1
P0.10: NFC2

Have you modified the DK to disconnect these peripherals, and configured the NFC pins as GPIO?

Best regards,

Jørgen