PCF8574 does not work in hardware or software.

[ayhan1]

I am having problems using pcf8574.

I am using PIC16F690. I am trying to send the input data I read with 3 PCF8574 via UART. I changed the addresses of the PCF8574s to 1-2-3 in order.

When I make PCF8574 chanel1 and compile it, I get an error. The error message is attached below. (When I choose Arduino Uno instead of Pic, it compiles without any problems.)

When I make the channel settings of the PCF8574s via software, it compiles without any problems.

[Steve-Matrix]

Can you please post your Flowcode project file and the resulting msg.txt file as this will help understand and debug your problem.