In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote:

Change RA_init to
RA_init  equ %11110100   ;SX18/20/28/48/52 port A latch init ;could the problem be here?????????????????


The latch bits 0 and 1 must be 0, so when direction bits 0 and 1 are 0, output is low,

and when direction bits 0 and 1 are 1, output is pulled high by the external 4.7k ohm

pullup resistors. lines SDA and SCL must have 4.7k pullups)

 

All the changes are done in the attached code.

 

regards peter

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