Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Downloading hex file to Cypress FX2LP

Hello all-
A week or so ago I asked on the list about obtaining the hex file, after I obtained it I followed the outline that I found here to download the hex file to the board under the assumption that a FX2LP would respond as a FX2 would (note that my hex file does not appear to go into extended memory):
- I write a 1 to address 0xE600 to assert reset and thus enable it to have firmware written to it.
- I load the firmware as shown in the ez-loader example.
- I de-assert the reset by writing zero to the same address.
After I do this and run USB-Probe, I can see something clearly occurred, but now it says I have 60 interfaces where before the download I had 1, which puzzles me, but what do I know. In any case, after I implement part of the vendors software to test one function, I find that the device is obviously not responding. There are a couple of messages here in the archives about folks who have gotten this (downloading) to work, and some indication that more may be involved than what I have outlined. One person offered to send out the software used. However, I attempted contact and received no response (sort of like my usb project here).
It is of course possible that my firmware hex file is no good, but I highly doubt that since it is in the vendors interest to get this to work; their application of course already works under Windows.
So, my questions:
- Is it necessary to do more than what I have outlined above to download the firmware to the FX2LP?
- Is anyone who is reading this message willing to send me a snippet of code that has worked for downloading to a FX2LP or FX2?
I have another question that is somewhat unrelated, in the Windows version of the software, the pipes are addressed by their endpoint addresses (e.g. 0x01, 0x02, 0x86 in this case) using a DeviceIoControl statement whereas it appears that the IOUSB interface functions like WritePipe use the pipe number (e.g. 1 to number of pipes); is that just the way things are, or am I misunderstanding something.
Thank you all very much for any help.


Tom Pratum



_______________________________________________
Do not post admin requests to the list. They will be ignored.
Usb mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/usb/email@hidden

This email sent to email@hidden


Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.