PCF8574 does not work in hardware or software.
Posted: Sun Nov 05, 2023 12:06 pm
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.
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.