GPIO troubles

[Saram]

sad

[Jørgen Holmefjord]

How have you connected the LED? Did you connect the LED to GPIO P1.02 (pin # 39 on the module)? Note that the pin numbers used in the application is referring to the GPIO number (PORT_NUMBER*32 + PIN_NUMBER).

[Jørgen Holmefjord]

Which SDK version are you using? Have you tried both setting and clearing the GPIO? Have you tried setting the GPIO manually without the GPIO HAL functions?

NRF_P1->PIN_CNF[2] = (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos) |
                     (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
                     (GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos) |
                     (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
                     (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos);
                              
NRF_P1->OUTSET = (1UL << 2);  // Set GPIO P1.02 high

NRF_P1->OUTCLR = (1UL << 2);  // Set GPIO P1.02 low

[Saram]

I just tried, incl. on zero port on several pins.
Unfortunately, the result is zero. Maybe you need some PPI settings or disable standard UART or something else.
During the tests - additionally did not include anything. If you enable SPI 0 and output MOSI or SCK on the same P 1.02 - everything works, I see the signal visually (on the LED) and on the oscilloscope - the signal is clear.