Hi,
I do not understand the war between “.org” and “.cc”, and I hope that the conflict is over because that is where most of the problems I encounter with YUN are today!
Indeed, at the beginning, with a rev1 & linino, I had bypassed the bridge to exchange the data faster through the UART. But I did not succeed with the rev2 & Lede. That's why, I tried to exchange by the SPI. Unfortunately, on the contrary, if my code works on rev2 & lede , it fails on rev2 & linino:
Echo 26> / sys / class / gpio / export => Busy
Unable to set mode 0 ...
Attached is a capture of the signal configured at 4Mhz. And indeed, we see that the frequency is not reached or even not configurable (0,6 MHz)...
By cons, my program works because I do not exceed the frequency recommended by the datasheet of 32u4 (Fosc / 4 = 16MHz / 4 = 4MHz) and that I transmit byte by byte.
So to emit longer frames it gets hard ...
I would appreciate to see the code of avrdude...
