i2c PBP questions

[mister_e]

Try this one, it's working here

define LOADER_USED 1
disable debug
Data_READ   var byte
Data_Write  var byte
Bad         var bit
ADDR        var word
SDA         var PORTC.4
SCL         var PORTC.3
Control     con $A0

Bad = 0

Start:
    For addr=0 to $FFFF
        
        data_write=addr.lowbyte
        bad = 0
        I2CWRITE sda,scl,control,ADDR,[data_write]
        PAUSE 10 

        I2CREAD sda,scl,control,ADDR,[Data_read]
        enable debug
            data_read=data_read ' refresh ICD display
        disable debug
        if data_read != data_write then bad=bad +1

        next
    GOTO Start

[TimV]

Hi Steve:

Thanks for posting the code. How long should this take to complete? I can see that it is cycling through addresses 0 to $FFFF. I put in a line between the next and GOTO Start to light up one of the status LEDs I have on the board.

It is not lighting up. In the watch window, Data_READ is blank. When I pause the program, I am in the library PBPPIC14.LIB stuck in the PAUSE routine waiting for the carry bit to be cleared. This bit does not get cleared.

I just thought of something. I have no includes in my program as I normally did with assembler. I am just starting out with PBP.

Am I perhaps not adding some includes that I need?

I didn't see a list in the manual anywhere of any special requirements that have to be in the code. I don't have a device include either.

Please advise


Thanks

Tim