Microzed not powering up

I bought 10 of microzed AES-Z7MB-7Z010-C01-I-G modules. But none of these seem to have jumpers nor rst or usr buttons. I was using a lower cost microzed AES-Z7MB-7Z010-SOM-G before. But when I power these new AES-Z7MB-7Z010-C01-I-G boards via USB, the LED's on the board do not blink at all. And my PC doesn't recognize this USB device at all. I put in the jumpers (set to SD card position), put an SD card which is working fine on the AES-Z7MB-7Z010-SOM-G boards, connected the board to my PCB using the 100 pin connectors on the PCb and powered it. Still nothing happens. The LED's on the board dont blink at all. Can anyone please help em with this ?

AES-Z7MB-7Z010-SOM-G was working fine when connected to my PCB.

0 bhfletcher over 8 years ago

I'm very sorry to hear of your problems. The C01 modules are not designed to operate standalone. See the following statement on Page 3 of the v1.6 User Guide:
Cost-Optimized SOM
This is identical to the SOM with the exception that all of the circuitry required for operating in standalone mode has been removed. The cost-optimized SOMs will ONLY work when plugged into a carrier card. The reduction in components allows these boards to be offered at a lower cost in volume. For a full listing of differences, see the yellow-highlighted items in the cost-optimized bill of materials.

Your C01 SOMs will need to be plugged into a Carrier to be operational.
Bryan
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0 100bobdxcool over 8 years ago in reply to bhfletcher

Thanks for replying. But I have designed a PCB myself which is a carrier card for the microzed boards. The PCB has the SOM connectors to mate with the SOM connectors on the microzed board.
I am able to connect AES-Z7MB-7Z010-SOM-G to my PCB and able to achieve communication between the PCB and AES-Z7MB-7Z010-SOM-G. But, when I connect the C01, it doesn't get powered at all. Am I missing something here ? Do I need to do something more here ?Does it only with the carrier card from microzed website ?
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0 100bobdxcool over 8 years ago in reply to bhfletcher

And also for the time being (since I may not have time to solve the carrier card problem) since AES-Z7MB-7Z010-SOM-G is out of stock in USA, can I order AES-Z7MB-7Z010-G (evaluation kit) instead of AES-Z7MB-7Z010-SOM-G ? As per the documentation it seems to have all the features of AES-Z7MB-7Z010-SOM-G (standalone,jumpers,switches,sd card boot, etc). But I just wanted to confirm once before I buy them.
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0 bhfletcher over 8 years ago

Is your Carrier providing 5V through the MicroHeaders? Once the MicroZed is plugged into a Carrier, it is not intended for the system to be powered off the microUSB since the current limit is only 500mA for USB 2.0. We encourage designers to develop their own Carriers. We have a MicroZed Carrier Design Guide which should be useful for this purpose -- http://zedboard.org/support/documentation/1519.

The board included in the AES-Z7MB-7Z010-G MicroZed Eval Kit is identical to the board included in AES-Z7MB-7Z010-SOM-G.

Bryan
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0 100bobdxcool over 8 years ago in reply to bhfletcher

Thank you. So, for AES-Z7MB-7Z010-C01-I-G, there are no LEds that light up when powered via the carrier card. The only way to know if it boots up is connecting a micro usb to usb cable to the usb port on the PC and login to the board via putty or any other serial communication software.
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0 bhfletcher over 7 years ago

On Avnet's carriers, we typically put LEDs connected to Power Good and DONE on the Carrier so you have indication if things are working properly.
Bryan
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0 Former Member over 7 years ago

I also had a cost optimized board. In the end, I just soldered the missing components on to their respective footprints. You'll need to desolder 3 jumper resistor and replace with 1 row pin. There're BOM files available on the documentation section.
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