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I am using SPI1 as a Master full duplex , and checking in the Nucleo 429 zi   PA5   ------> SPI1_SCKThere is no clock , I using a scope and testing PA5 pin on the Nucleo 429 zi I attach the code , its very short code Here is the link to the pin descr...
there is a possibility to click view disassembly , when clicking there is alot of lines that look like 681b0c86:  movs  r0, r0681b0c88:  movs  r0, r0681b0c8a:  movs  r0, r0681b0c8c:  movs  r0, r0681b0c8e:  movs  r0, r0681b0c90:  movs  r0, r0681b0c92:...
arm-none-eabi-gcc -o "Uart_Ring_Buffer.elf" @"objects.list"  -mcpu=cortex-m4 -T"C:\Users\User\STM32CubeIDE\workspace_1.8.0\Uart_Ring_Buffer\STM32F429ZITX_FLASH.ld" --specs=nosys.specs -Wl,-Map="Uart_Ring_Buffer.map" -Wl,--gc-sections -static --specs=...