STM CircleOS forum / Why do the gerber files not match Primer2 print?

zwieblum · 2009-01-16 20:36:35

Hold the primer with the USB ports down, IR up. Locate R10 - its the last oft 4 elemets in a row ~ 17mm from the top of the print down. on the right side of R10, ~ 5mm, there are 2 resistors "105" that cannot be found on the gerber files. Primer2 print and gerber files are v1.1.

So why do the gerber files not match Primer2 print?
Where can I get the correct gerber files?
Where can I get the correct scheme?

samarkh · 2009-01-16 21:22:21

Have you notice that the lower resistor forms a potential divider with R10, and the schematic has R11/R12 connected to Boot0 (Pin94) with R12 shown as 0R

Yours Simon M.

zwieblum · 2009-01-16 22:02:21

yes, thats funny. I try change the primer2 in that way that it uses serial-1 for flashing. there is a mod for primer1 http://tuxotronic.org/wiki/tutorial/stm … -over-uart that does the same. as far as i can see i have to remove u7 (no need for ir anyway), remove r12 (connect to dtr), add a usb->rs232(3.3v) converter. how to connect the converter is written in stm32primer-flash-over-uart ...

Francis · 2009-01-17 10:36:23

You are right: the gerber files correspond to the last prototype. A minor change had been made for the backup voltage (internal backup registers were lost because the voltage was pulled down by the ADC input).
I will replace the Gerber by the right version as soon as possible (Monday morning).

Francis · 2009-01-19 09:18:05

The files have been updated. Sorry for the mistake.

samarkh · 2009-01-19 10:28:48

Is the schematic set up to date as well?

Yours Simon M.

# 1 2009-01-16 20:36:35 Why do the gerber files not match Primer2 print?

Why do the gerber files not match Primer2 print?

# 2 2009-01-16 21:22:21 Why do the gerber files not match Primer2 print?

Re: Why do the gerber files not match Primer2 print?

# 3 2009-01-16 22:02:21 Why do the gerber files not match Primer2 print?

Re: Why do the gerber files not match Primer2 print?

# 4 2009-01-17 10:36:23 Why do the gerber files not match Primer2 print?

Re: Why do the gerber files not match Primer2 print?

# 5 2009-01-19 09:18:05 Why do the gerber files not match Primer2 print?

Re: Why do the gerber files not match Primer2 print?

# 6 2009-01-19 10:28:48 Why do the gerber files not match Primer2 print?

Re: Why do the gerber files not match Primer2 print?

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