New little bug in pic 16f676

#1 · November 22, 2025, 8:47 am

Playing with the ADC of this pic, i encountered this little bug:

in the file "p16F676.mcu' the value of ADCON1 is wrongly set to 1Fh, instead of 9Fh.

This way the ADC conversion doesn't work. Inserting the right value solves the issue

The wrong code:

<!-- BANK 1 -->
        <regblock name="SFR1" start="0x009E" end="0x0009F" >
            <register name="ADRESL" addr="0x9E" bits="" />
            <register name="ANSEL"  addr="0x91" reset="11111111" />
            <register name="ADCON1" addr="0x1F"  mask="01110000"
                      bits="0,0,0,0,ADCS0,ADCS1,ADCS2"/>
        </regblock>

The correct code:

<!-- BANK 1 -->
        <regblock name="SFR1" start="0x009E" end="0x0009F" >
            <register name="ADRESL" addr="0x9E" bits="" />
            <register name="ANSEL"  addr="0x91" reset="11111111" />
            <register name="ADCON1" addr="0x9F"  mask="01110000"
                      bits="0,0,0,0,ADCS0,ADCS1,ADCS2"/>
        </regblock>

#2 · November 24, 2025, 5:50 pm

Hi.

Thanks for reporting this issue, and for the solution.