|[WP-34S] I/O Error & Save Original 30b Flash ROM?|
Message #1 Posted by Chris Tvergard on 1 June 2012, 1:56 a.m.
After successfully flashing my 30b twice each error free I can't seem to use the RECV/SEND without a 5 second I/O Error no matter which way. I know the port is correctly set in the ini file as COM3 and it does show Wait... on both ends as well as the = signs.
My port on the USB to Serial converter is COM3 and is set to:
115200,8,NONE,1,NONE(=flow control). The flash works but not the other communications.(Just to be sure I tried to set COM port 0 thru 3 as well in the ini file but only #3 works.)
I have an older 30b which I want to re-flash after possibly saving the 30b original ROM for a later reverse flash (I'd like to keep and use the HP Black-Scholes diff. eq. in the future again). Can one do that?
Anyone in the know on any this stuff?
Edit #2 added below later:
The crystal is installed and the XTAL? returns true. And I used the xtal-full.bin flash. Just be 2 x sure I entered sequentially 80, 90, 100, 110, 120 in X.
Edited: 1 June 2012, 2:29 a.m. after one or more responses were posted