i try to get spi work in custom board in stm32h743VIH mcu. I'm using mco1 output clock to supply master clock to external adc converter and spi2 to read data. I want to use system with 1.8v supply voltage. I'm using stm32Cube ide to generate code.
Flashing to device works and gpios is working with 1.8v supply voltage. But mco1 and spi2 not working(no spi clk when measured with scope ). When using 3V peripherals start working.
Any suggestions?
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