Serial Write

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Synopsis

Header: fxcg/serial.h
Syscall index: 0x1BBE
Function signature: int Serial_Write(const unsigned char* buf, int count)

Sends a number of bytes through the 3-pin serial port, by putting them in the transmit buffer.

Parameters

  • buf - pointer to buffer containing the bytes to transmit;
  • count - amount of bytes to transmit from buf.

Returns

  • 0 if successful,
  • 2 if no space is available in the serial transmit buffer (which has a size of 256 bytes),
  • 3 if the serial channel is not open.