STM32F407VG and ULPI USB3320
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
‎2013-12-11 5:02 AM
Hi colleagues!
I suppose this is old topic, but I haven't found the solution yet. what I have: 1. Modified STM32F4_discovery: removed microphone, and some resistors for avoiding conflict with ULPI interface. 2. Board with USB3320, which connected by connectors. Scheme:- Labels:
-
USB
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
‎2013-12-13 12:18 PM
What I did wrong?
The most obvious one would be that the VDDIO is the voltage for the ULPI interface, and that's NOT 1.8VUp vote any posts that you find helpful, it shows what's working..
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
‎2013-12-15 8:46 PM
Clive,
My MCU works with 1.8V logic level. And VDDIO could be either 1.8V or 3.3V.- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
‎2013-12-16 4:40 AM
My MCU works with 1.8V logic level. And VDDIO could be either 1.8V or 3.3V.
So you modified the STM32F4-Discovery supply? The operating voltage specified for USB HS is 2.7V to 3.6VUp vote any posts that you find helpful, it shows what's working..
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
‎2013-12-16 11:59 PM
Oops! I missed it in datasheet. :( Will check!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
‎2013-12-17 10:01 PM
Change power from MCU and VDDIO from 1.8V to 3.3V.
USB3320 VDD18 = 2.0V. Check power-up sequence VDD1.8(2V) - the first, then VDDIO=3.3V But it didn't help....:(- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content
‎2014-03-27 11:30 PM
The troubles were in the long wires. Everything is working at PCB.
