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Cypress AN2131QC write port problem?

Ivan Cheung

I have tried to write port A,B and C in the MCU by the following code which supposed to be correct. However, the port are not set to be 0. Does anybody know why?

PORTCCFG= 0x00;
OEC =0xFF;
OUTC=0x00;

PORTBCFG= 0x00;
OEB =0xFF;
OUTB=0x00;

PORTACFG= 0x00;
OEA =0xFF;
OUTA=0x00;