PIC 16F627A Config word

[Dave Squibb]

Hi, Can someone check the config word is setting correctly for this PIC please? According to the data sheet bit 13 should be 1 for CP off and 0 for CP on. In practice Flowcode sets bit 13 to 1 in both cases.
(It tries to set bit 14 with CP off!) Also bits 9 - 12 say "read as 0" be 0 b but are set to 1.

[Benj]

Hello Dave,

Here is the current v6 definition file. I've checked it and bit 13 is set as the code protect.

<setting name='CP' offset='13' mask='1' bits='1' hint='Code Protect' >
<option name='Off' value='1' />
<option name='On' value='0' />
</setting>

You can double check your file is correct by copying the attached file below into your "Flowcode 6\FCD\PIC" directory and restarting Flowcode.

16F627A.fcdx

(12.8 KiB) Downloaded 268 times

An unprogrammed bit is generally set to a logic '1' and so this is what we use as a default. Programming a 1 to these empty config locations which read back as 0 shouldn't cause any problems.

[Dave Squibb]

Hi Benj,
I've copied the file over, still the same.
Code protect ON sets 0x1F70
Code protect OFF sets 0x3F70

Build / View C

Regards,
Dave.

[Benj]

Hi Dave,

Remember the bits are numbered from 0.

0x2000 is the bit that is changing which seems right to me.

[Dave Squibb]

Sorry Benj, had a senior moment with my counting.
Thanks, Dave.

[Benj]

No worries, I had to count twice myself