Bug #4431
openTC1 (TC2050) pin 4 should connect to VDD network, not VDD_3V3
50%
Description
18:33 < horizon> LaF0rge: it looks like there's a bug at TC1 pin 4, the net name should be VDD instead of
VDD_3V3?
18:33 < horizon> thats why its not connected and does not power my SWD adaptor
19:35 <@LaF0rge> horizon: and yes, you appear to be correct
Files
Updated by laforge about 4 years ago
I'm a bit surprised to see issues like this. Shouldn't the ERC of Eagle catch a network with only one connection? How can we produce something like that? Indeed, it does' But The "Only one pin on net VDD_3V3" was "approved" :(
Also, AFAIR roh did see the CPUID via SWD in OpenOCD? That might be related to different SWD adapter?
Updated by laforge about 4 years ago
- Checklist item change schematics / board design added
- Checklist item rework boards? added
- Status changed from New to In Progress
- % Done changed from 0 to 50
commit 617288296fc07df28753944d9299e00a7cd9b931 (HEAD -> master)
Author: Harald Welte <laforge@osmocom.org>
Date: Sun Mar 1 19:41:00 2020 +0100
clock-generator: Fix VDD connection of TC2050 SWD connector
Closes: OS#4431
Updated by roh about 4 years ago
- File openocd.cfg openocd.cfg added
- File openocd_flash_bootloader.cfg openocd_flash_bootloader.cfg added
- File openocd_flash_bootloader.sh openocd_flash_bootloader.sh added
i had some issue with some jtag intefacees working, others not.
i think versaloon worked in the end.
here is the openocd config which i think i used for this board
Updated by roh almost 4 years ago
i don't think this can be reworked properly. the 'unconnected' pads are just that.. pads with no trace. hard to rework a wire there so it would contact reliably to a relatively blunt pogo hitting the joint from above..
Updated by mschramm over 3 years ago
laforge wrote:
shouldn't the ERC of Eagle catch a network with only one connection?
My suspicion is that the ERC was made before these signals where named reasonably, and in a subsequent ERC, a generic auto-named signal throwing a warning, tends to get neglected... Lesson learned here: give all relevant signals a proper naming before ERC.
