CALL JJSENDBYTE
This page was last modified 17:35, 29 July 2021 by Mars2000you.

Contents

Effect

Sends 1-byte data to the joystick port 2.

Notes:

  • This instruction is for general-purpose serial communication at 38400 bps. You can use it when communicating with the terminal software or between two MSX computers.
  • Be careful when writing programs for two-way communication. One computer must be the sender, the other one the receiver. If both computers are in the receiver status, they will deadlock and freeze.
  • If an error occurs during communication or data cannot be received correctly, MSX may freeze while waiting for reception. In such a case, please click the [x] button of "Joy Joy File Server" once. By sending dummy data, the problem may be resolved.

Syntax

CALL JJSENDBYTE (<Data>)

Parameter

<Data> can only be a numeric value (between 0 and 255). It will be stored in an integer variable with CALL JJRECVBYTE.

Example

CALL JJSENDBYTE (201): CALL JJRECVBYTE (A%)

Related to

CALL JJRECV, CALL JJRECVBYTE, CALL JJRECVMSG, CALL JJSEND, CALL JJSENDMSG

Compatibility

JJFS BASIC