Author Topic: Need someone with a BeMicro Max10 board  (Read 3884 times)

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Offline 1uk3Topic starter

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Need someone with a BeMicro Max10 board
« on: October 24, 2015, 05:13:57 pm »
Hi

I have got 2 faulty BeMicro Max 10 FPGA boards for free. Both had a short between 5V and ground. I tracked it down to the FT240X USB-Parallel converter.
After desoldering i measured <0.05? from each supply pin to ground (even the 3.3V output)  :wtf:
So i ordered new ones, changed PID/VID, PC detected it as Altera USB Blaster, tried to program and ... nothing  :palm:
After a quick look into the schematics i noticed that CBUS5 and CBUS6 are connected to CLK2 and CLK 3 pin of the MAX V and the 24MHz crystal(Y2) is not populated.
I tried different settings for CBUS5/6: 24MHz, 12MHz, 6MHz, high, low,...
With 24MHz on 5 and anything on 6, the LED D11 comes on as soon as i click "auto detect" in the programmer, but nothing happens(timeout).

Is anyone here with a working board? Could you please measure these two signals (or read the setting with the FTDI tool)?
Pins: 40 and 42 on the MAX V or 19 and 20 on the FT240X.

Many thanks
Lukas


Schematics: Page 6 http://www.alterawiki.com/uploads/e/ec/BeMicro_Max_10-Schematic_A4-20141008.pdf
 

Offline Gabri74

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Re: Need someone with a BeMicro Max10 board
« Reply #1 on: October 28, 2015, 11:58:59 am »
Dumped the eeporm using linux utility ftdi_eeprom, see attach 'dump.hex'
I hope it is in a format useful to you.
Sorry, I've no access to a windows machine but tried dumping with FTDI FT_PROG using a VirtualBox VM but it did not find any device (probably due to the VM usb hardware abstraction).

If this is not sufficient, I'll try to read those signals on the PCB using a scope probe, but pins are really small...
 

Offline 1uk3Topic starter

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Re: Need someone with a BeMicro Max10 board
« Reply #2 on: October 28, 2015, 09:39:57 pm »
Thank you!  ^-^
I will try to read my eeprom and compare or just flash yours. Will report back on Saturday.

Quote
using a VirtualBox VM but it did not find any device (probably due to the VM usb hardware abstraction).
Didn't work for me either (virtualbox and vmware)


Edit: The app note suggests it is 6MHz on CBUS5 and !keep_awake on CBUS6
« Last Edit: October 28, 2015, 10:35:47 pm by 1uk3 »
 

Offline 1uk3Topic starter

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Re: Need someone with a BeMicro Max10 board
« Reply #3 on: November 27, 2015, 08:38:04 pm »
Thank you Gabri74! It works

It took me quite a while to find another solder bridge on the CPLD. The alignment of the components is horrible

If someone else has the same problem:
PID: 6001
VID 09FB
CBUS5: 6MHz
CBUS6: not keep alive
 

Offline Gabri74

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Re: Need someone with a BeMicro Max10 board
« Reply #4 on: November 30, 2015, 09:14:31 am »
Glad it helped  :-+
 


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