similiar situation was to port for Nucleo STM32F411RET6 i don’t know issues why
i face now two situations :
- if I use pins for SPI
(PA5 = SCK pin D13, PA6 = MISO pin D12,PA7 = MOSI pin D11) do not work
also
if i use
#define UART_DEBUGGER_INDEX 1 automatically it eat ram memory
and i can not use even resolution of 160x20 pixel on ST7735
so only way to test it was through using devices with their protocols (I2C,SPI,UART …) so
- for i2c i test i use display ssd1306 and
- for spi i test i use display stt7735
but before test
i make sure did work with Arduino IDE (STM32 Devices)
- so in this way i know if problem with device or tinyclros (in my case :D)