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Hi Philippe ,
The mac example needs the PID and VID to match exactly. In the system profiler you should
see the USB PID and VID before and after the device is booted.
I have used the same example code to boot our USB FX device and it is quite easy to get going after
you have modified the #defines at the beginning to make sure the VID and PIDs are the same as your
device both before and after booting.
I have not tried it with the FX2 though. Could the bootloader code need tweaking ? Does the same
firmware re-enumerate properly on Windows using the Cypress control panel ?
Jonathan Selby
Director - Software Development
Xaxero Marine Software Engineering Ltd
at skype.com - xaxjon
Satellite Phone (00) 88163 142 9922
Cell Argentina (54) 929 0160 2064
(00) 64 (0)9 412 7580 fax (00) 64 (0)9 412 7579
http://www.xaxero.com
Software for extending your horizon....
philippe wicker wrote:
Hello all,
I'm really new to USB programming and these are my first experiments.
I'm trying to download a firmware into an EZ-USB FX2 chip using the
Ezloader sample code. This chip is actually hosted by a Cypress
evaluation board. The downloaded firmware contains descriptors for a
class compliant midi device (this is at least what I assume....). I
already changed the k8051_USBCS constant (0x7f92) with k8051_CPUCS
(0xE600) which is I believe the correct register to address to manage
the reset state for the FX2 8051. The downloading and "assert reset"
and "de-assert reset" requests seems to complete successfully, but the
"new" device doesn't show up in USBProber (USBProber still shows the
Cypress default device 0x4b4/0x8613) and NewDeviceAdded loop body is
not executed after the downloading.
Any idea about the problem? Should the "new" device automatically shows
up in USBProber? As it is a class compliant midi device, do I need to
load a driver (as is done by Ezloader)?
Thanks for any tips or pointers.
Regards
Philippe
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