I have the exact hardware setup as in the example "STM32_spiflash_enc28j60". Arduino IDE Ver 1.8.1, MCU stm32f103c8. spi flash w25q64. All libraries are in place. I have also tried different library ...

** 2. The LED light flashes once per second, that is, the serial port sends a command to read the number of pulses ** 3. The serial monitor can observe that a position value is output per second ...