GPIO Table
I have edit the wiki with table for GPIO

Can someone please check it? Thanks.

Sorry for any mistakes. English is not my native language

1. Quartz64 Model B, 4GB RAM

2. Quartz64 Model A, 4GB RAM

3. RockPro64 v2.1
According to pgwipeout, pin 7 right now is likely to just be a regular GPIO (GPIO0_A0), as he has been unable to actually get CPU_REFCLK_OUT from there. You can try this hypothesis by wiring an LED through a 220 Ohm resistor between it and GND, and then running gpioset 0 0=1 but this probably all depends on your device tree and kernel you're running.

Some more notes on the GPIOs I've written up based on the schematics a while ago:
  • pin 3 (I2C3_SDA_M0): can be pwm, pulled high to 3.3V through 2.2kOhm resistor
  • pin 5 (I2C3_SCL_M0): can be pwm, pulled high to 3.3V through 2.2kOhm resistor
  • pin 12 (UART0_TX): can be pwm
  • pin 14 (UART0_RX): can be pwm
  • pin 18 (SPDIF_OUT): low-pass filtered with cutoff of 220 MHz

I might add those as notes to the wiki table later when I get the time.

It's also important to note that these are the GPIO bus assignments for the Model A. But we can do the wiki formatting distinction when the Model B ever sees the light of day.

Occasional Linux Kernel Contributor, Avid Wiki Updater, Ask Me About Quartz64
Open Hardware Quartz64 Model A TOSLink Adapter
Pi-bus GPIO Extender For ROCKPro64 And Quartz64 Model A
Plebian GNU/Linux

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