Re: [libopenstm32-devel] STM32F Connectivity line, USB Bootloader and HSE crystal Frequency
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From: Gareth M. <ga...@bl...> - 2011-07-12 07:08:11
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On Tue, Jul 12, 2011 at 6:41 AM, Uwe Bonnes <bo...@el...> wrote: > on my STM32F107 board, the USB bootloader enumerates much faster with a 25 > MHz crystal then with a 8 MHz crystal. With the 8 MHz crystal, there are > several unseuccessfull attempts like: I have two boards both enumerate correctly and reliably with 8MHz crystals. Check your crystal, but I think it's more likely a software problem. If you send me a pcap file (capture with wireshark) I'll have a look at it. Does the device work after enumeration? Regards, Gareth -- Black Sphere Technologies Ltd. Web: www.blacksphere.co.nz Mobile: +64 27 777 2182 Tel: +64 9 478 8885 Skype: gareth.mcmullin LinkedIn: http://nz.linkedin.com/in/gsmcmullin |