Matrix - Why does my ARM E-Block appears in Windows as device not recognised?
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Why does my ARM E-Block appears in Windows as device not recognised?


Hardware : EB185, EB031, EB034



Symptoms :


The device may not enumerate on the USB and you receive a USB device not recognised warning in Windows.

Cause :


a) The bootloader firmware has become corrupted.

b) There is a program running that is toggling the output controlling the USB pullup circuitry. Pressing Prog and tapping Reset allows the device to be recognised again.

Solution :


a) Follow the instructions documented inside the Flowcode_ARM/Tools/Bootloader folder.

b) Use J18 to disconnect from the USB circuitry while running programs not meant for USB comms.

Last update:
2015-03-31 12:14
Author:
DavidA
Revision:
1.0
Average rating:0 (0 Votes)

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