|Problems with repurposing the HP20b/30b|
Message #1 Posted by Namir on 13 Aug 2011, 11:09 a.m.
I have been trying to burn the wp34s on an HP20b and an HP-30b. Gene Wright has kindly mailed me the old serial port cable that connects a PC with either calculator model.
At first I try to use an serial-to-USB adapter cable with Gene's cable to connect my current laptop (running Windows 7) to the calculator. That did not work. No real surprise here.
I then bought an old IBM Thinkpad laptop with Windows XP. I used the same cable system to connect the laptop's USB port to the calculator. That did not work either.
Last night I found in my house and old compact PC that has the old serial port and runs Windows 2000. I powered the old PC up, got to work, and copied the related firmware burning files to that old PC. I then used the serial cable that Gene sent me to connect the old PC and either calculator model. It DID NOT WORK EITHER.
I am using SAM-BA version 2.10 that I got from Gene to burn teh firmware. The cable he sent me was able to easily and quickly erase HP's firmware on the 20b and 30b. But when it comes to burning the wp34s firmware, I am getting a message that the software did not connect with either calculator. In the case of the SAM-BA 2.10 it sees COM1 and am able to select the board type (following a new instruction file I got from Gene) but it is unable to make the connection with either calculator.
Any help is appreciated. What am I doing wrong? Is the Windows 2000 not helping? Do I need to press the Reset and ON button in a particular order and duration before I run the SAM-BA 2.10 application?