Hello!
How knows for what purpose needed “Disable SPI” pins on board: 1V8 and CLK ?
Rock 5b+ and "Disable SPI" on PCB board
When you want to flash firmware to emmc, you have to disable SPI Flash in case you flash to the wrong storage.
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So for flashing eMMC it must be set jumper between “1V8” and “CLK” ? It is very strange naming of those pins.
I read somewhere that for disabling boot from SPI it is possible to set some pins on GPIO to ground.
If you are using rkdevtool on windows, it can switch to emmc. But on linux with rkdeveloptool, there is no such method, so there has to be a hardware way to disable SPI Flash.
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I see. So the answer: it must be set jumper between pins “1V8” and “CLK” ?