Hi Folks,

I'm able to run both NRF24 and ILI9341 independantly.

I can run nrf24 on SPI1 and tft on SPI2, but i cant run them together.

The moment I initialize 9341 via tft.begin(spi2), nrf stops to work

Any one has ideas?

@thom4s said in [SOLVED] STM32F103C8T6 bluepill clone - RFM69HW SPI port 1 and ILI9341 SPI port 2 not working together:

o myself. Problem were in wrong definition of IRQ pin in sketch. But, as I found out STM32F103C8T6 has SPI 1 running on 72MHz (for SPI max 72/2 = 36MHz) and SPI 2 36MHz (for SPI max 36/2 = 18MHz) so it were a stupid idea to wire TFT display to SPI 2 port which is slower than SPI 1 with RFM69HW which doesnt need so fast SPI. Therefore I switched radio to SPI-2 and TFT display to faster SPI-1.
Radio SPI-2 and TFT ILI9341 SPI-1 wiring

I'm having the same problem with NRF24L01 + ILI9341.

TFT is on the SPI2 , its working but NRF24L01 on SPI1 doesnt work the moment i call tft.begin.

Its not hardware related. something is wrong when i initialize the spi in the Adafruit_ILI9341_STM::begin

Any thoughts?