AR# 10253: *Obsolete* 3.1i XC18v00 JTAG Programmer - SVF for Get USERCODE fails with wrong value
AR# 10253
*Obsolete* 3.1i XC18v00 JTAG Programmer - SVF for Get USERCODE fails with wrong value
Description
Keywords: svf, jtag, usercode, 18v00
Urgency: Standard
General Description: When I use an SVF file generated by the JTAG Programmer software for an XC18v00 device, an incorrect value for the programmable USERCODE is produced.
For example:
Device = XC18v04
Program xc18v04 with USERCODE=12345678 through a cable.
Create an SVF file that contains commands for the following operation: Operation->Get Device Signature/USERCODE
Execute SVF on the XC18v04.
The USERCODE check fails.
It appears that the USERCODE bits are reversed.
Either the GUI represents the bits in reverse order, or the SVF is wrong.
Also, the SVF for the Operation->Program with a USERCODE setting does not match the operation results through the cable.