I am trying to use GPIO1 ~ GPIO4 for some general purpose tasks.
To access and control GPIO2 ~ GPIO4 there is no problem, I can control them.
However, the GPIO0 (which is also used for SPI) is not working, it holds HIGH always.
I am running the
example_gpio.c from the BC660K SDK, no changes were done, except that I am looping over the GPIOs from 1 to 4, like this:
if (++gpioPin > 11) gpioPin = 0;
Where on each iteration, the GPIO is set to low, waits 1 second, then sets to HIGH.
Here is an picture of the schematic, which we can see the MOSI/GPIO1
EDIT: I am using the dev-kit BC660K-TE-B
EDIT 2: I noticed that the GPIOs on chip are mapped to different GPIO numbers on PCB. For example, GPIO4 (on chip) maps to GPIO2 on PCB.