ESP8266 Community Forum

I'm trying to get the HSPI Master demo from https://github.com/espressif/esp8266-rt ... SPI_Master working. On Pin D5 it just spits out garbage (I except a nice 10Mhz clock). Any idea what's wrong? I'm using the Espressif RTOS V2.0. I can reproduce the same on a Wemos D2 and Nodemcu board.

this is a known issue. best to keep connection short and/or buffer it.

I'm basically meassuring directly on the pin of the Development Board. But well, I think the only real solution is to finally completly switch to ESP32. With the new ESP32 solo this should anyway be the only smart thing to do

Change the time base to 10nS or 25nS per division. What you are probably seeing is the result of sampling errors because off too low a horizontal rate. Because it looks fine for me at the higher rate.