dslreports logo
site
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
4
share rss forum feed


TSI Gabe
Router of Packets
Premium,VIP
join:2007-01-03
Gatineau, QC
kudos:7
reply to mlord

Re: Upgrading Firmware on Thompson DCM475

I've been meaning to get one of these for a while.

»www.adafruit.com/products/757

Conversion from 3.3 to 5v or the other way around is way too common.
--
TSI Gabe - TekSavvy Solutions Inc.
Authorized TSI employee ( »TekSavvy FAQ »Official support in the forum )

mlord

join:2006-11-05
Nepean, ON
kudos:13
Reviews:
·Start Communicat..

1 edit
Yeah, that's the same type of gizmo I'm using here, except mine is from SparkFun: »www.sparkfun.com/products/8745
Edit: But I like the one you posted the link for even better. Gotta get some!

Handy little sucker. I'm actually using the "LV" (Low Voltage) side to POWER the flash chip in-circuit inside the modem. Works rather well!

After disconnecting the logic analyzer, the loading on the pins is now low enough that I'm getting very consistent error-free dumps every time. Takes just under 19 minutes to dump all of flash in ASCII-hex (with spaces) over the serial link. I can speed that up by eliminating the spaces between byte values, which ought reduce the time by 1/3 or so.

At this point, I'm just about ready to borrow a modem with 02.16 firmware to read the image out of.

Cheers