Doing graduation design, the use of two pieces of STM32F103ZET6, host is responsible for acquisition, speech signal after AD transform into the internal FLASH, then using the serial port protocol will FLASH in the information sent to the machine, using a laser beam instead of a serial port cable, a serial port information from machine after DA transformation output after deposited in the FLASH,
To change to the serial port line laser data leakage phenomenon, reasons unknown. Is there a great god help me analysis the reason,