Hi,
I try to understand how the picoboot can work regarding SO pin of GC IPL chip.
Il seems that at boot time, the RPI Pico and the GC IPL chip get the CS, CLK signal, so both of them should drive the SO pin.
But that is not possible, 2 chips cannot drive the same pin without a nice smoke.
Moreover, when installing the picoboot, the EXTIN pin of the BBA connector shall be connecte to the ground ? What for ?
Can anyone bring me some light ?
Regard.
Christophe.