Search found 4 matches

by englund
Sun Sep 28, 2014 11:29 am
Forum: HV Rescue Shield
Topic: Trying to rescue 32 TQFP mounted on PCB
Replies: 6
Views: 14018

Re: Trying to rescue 32 TQFP mounted on PCB

Yeah, it stopped responding to the programmer. I have tried 3 different programmers (USBASP v2.0, Arduino UNO as ISP, AVR-ISP-MK2) on 3 different computers (win7 32&64 bit, ubuntu) and also tried to apply an external 1MHz clock but nothing worked.. I checked with a logic analyzer (USBee AX PRO) that...
by englund
Sun Sep 28, 2014 4:06 am
Forum: HV Rescue Shield
Topic: Trying to rescue 32 TQFP mounted on PCB
Replies: 6
Views: 14018

Re: Trying to rescue 32 TQFP mounted on PCB

Thanks for the reply.. I tried removing some components using hot air but the board became a mess so I decided it was better to just toss the boards with bad fuses and buy new ones. After all the MiniWireless is "only" $15, you get alot for your money.. although a slightly larger pcb with a dip atme...
by englund
Sat Sep 27, 2014 4:27 am
Forum: HV Rescue Shield
Topic: Trying to rescue 32 TQFP mounted on PCB
Replies: 6
Views: 14018

Re: Trying to rescue 32 TQFP mounted on PCB

Hmm, I would really want to avoid removing the atmega from the PCB.. Do you think I could get away by removing a few of the other components? Which ones are most likely the cause of the interference you think? For example the crystal, wouldn't that be overrided by a full swing 5V TTL?
by englund
Fri Sep 26, 2014 9:10 am
Forum: HV Rescue Shield
Topic: Trying to rescue 32 TQFP mounted on PCB
Replies: 6
Views: 14018

Trying to rescue 32 TQFP mounted on PCB

Hi, I bought the rescue shield to rescue a couple of MiniWireless-HW ( http://www.anarduino.com/miniwireless/ ) but I'm not having much success :( I have tried both the original arduino sketch and the alternate firmware by Dennis but both fail (differently). With the original firmware I select atmeg...