New test.
espspi_proxy.h: delayMicroseconds(20); -> delayMicroseconds(xx);
8Mhz
delayMicroseconds(30);
Start: No errors
Traffic: No errors
10Mhz
delayMicroseconds(30);
Start: No errors
Traffic: No errors
delayMicroseconds(40);
Start: No errors
Traffic: No errors
12Mhz
delayMicroseconds(30);
Start: Some errors
Traffic: No errors
delayMicroseconds(40);
Start: Some errors
Traffic: No errors
delayMicroseconds(50);
Start: No errors
Traffic: No errors
The measured response time variations are negligible, so I will use 10Mhz with 50us.
ameliaamelia