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programming multiple micros at once using avrisp mk11
chartman wrote:There was aguy ( on the webring I think) that made a gang programmer with AVRISP MKII.... Bed of nails/pogo pins for the chips and running complex software/scripts...
Tuesday, 9 October 2012 - 15:12
flashc_memcopy stops responding
Hey, If this is the 32uc3a1512 check your revision. There's a bug in the older silicon that causes the behaviour you're describing. P
Tuesday, 9 October 2012 - 15:04
EEPROM errors
Thank you for all the help everyone. It would seem it is indeed a combination of things causing the problem but that we could've avoided it by closer adherence to the I2C spec (...
Friday, 25 February 2011 - 10:26
EEPROM errors
Good morning, The 2k2 is in series on the SDA line with a 10k pull up to a 5V rail in between the 2k2 and the IO pin. Otherwise the circuit is stock standard. WP connected to a 5V...
Thursday, 17 February 2011 - 07:01
EEPROM errors
Fortunately the current implementation is hardware based and much improved on the version that's giving troubles. I've inherited this problem and am not totally familiar with the...
Wednesday, 16 February 2011 - 12:29
EEPROM errors
Quote:I2C pins are driven between output low and input only? Never output high? I'm afraid I don't really understand. The data is just bit banged on a normal IO port onto the 5V...
Wednesday, 16 February 2011 - 11:17
EEPROM errors
About 2% of the devices are showing this problem in the affected area. A power fail routine allows for the completion of any EE writes that may be happening before doing anything...
Wednesday, 16 February 2011 - 11:02
EEPROM errors
This particular product is using a purely software I2C implementation. I should add, the product has been deployed in other areas with no such problem. The only environmental...
Wednesday, 16 February 2011 - 10:05
EEPROM errors
Hi Jepael, To answer your questions: - No, just the EE on the I2C. - No, looking back at the code, this wasn't implemented in the problematic product. It seems quite likely that...
Wednesday, 16 February 2011 - 09:06
EEPROM errors
Thank you fingar. Had a look at the old circuit diagrams and we've never connected those pins. Our best guess at this point is that, during a power on reset, the buffer is getting...
Wednesday, 16 February 2011 - 08:07
EEPROM errors
Thanks for all the suggestions guys. It's very much appreciated... Unfortunately going back to the M24C08 doesn't appear to be an option. The WP pin is not floating. and the...
Tuesday, 15 February 2011 - 14:42
Can't debug on meshnetics board
Hi Alex, Thanks for pointing that out. After the same other issues with the Atmel SDK (now fixed) I went back to the meshnetics stuff. This problem was evident in both and the...
Tuesday, 14 December 2010 - 07:54