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Sermus / ESP8266_Adafruit_ILI9341

Driver and sample code for ILI9341-based TFT displays designed for ESP8266 chip
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How spi speed @80mhz? #5

Closed tontito closed 8 years ago

tontito commented 9 years ago

Hi Sermus, How do I do that spi speed @40mhz to @80mhz overclock ?

Sermus commented 9 years ago

Hi Volki, I was never able to make ILI9341 work at 80MHz. 40 was my top. If you can please let me know.

Sermus.

2015-07-01 1:15 GMT+03:00 Volki notifications@github.com:

Hi Sermus, How do I do that spi speed @40mhz to @80mhz overclock ?

— Reply to this email directly or view it on GitHub https://github.com/Sermus/ESP8266_Adafruit_ILI9341/issues/5.

rexnanet commented 8 years ago

Hi, I've stumble upon this as I was trying to get the display to work for the first time. The speed was set to 80Mhz hardcoded on the ILI9341 driver but all I was getting was a blank screen. Finally found it and tested with 40MHz and it worked! So I'm investigating if it's really possible to run it at 80MHz... I've been able to run it at 64MHz but on a SMT32. I don't think that it is possible to setup speeds between 40 and 80MHz on the ESP8266. It might be that the wires are a bit big for these speeds. I'm going to try again with shorter cables when I have the chance...

Rex.