[libopenstm32-devel] STM32F Connectivity line, USB Bootloader and HSE crystal Frequency
Status: Inactive
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From: Uwe B. <bo...@el...> - 2011-07-11 18:41:28
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Hello, 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: Jul 11 20:27:34 hertz kernel: [35078.633123] hub 1-1:1.0: unable to enumerate USB device on port 1 Jul 11 20:27:34 hertz kernel: [35079.024836] usb 1-1.1: new full speed USB device using ehci_hcd and address 20 Jul 11 20:27:34 hertz kernel: [35079.096942] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:34 hertz kernel: [35079.272932] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:34 hertz kernel: [35079.448542] usb 1-1.1: new full speed USB device using ehci_hcd and address 21 Jul 11 20:27:35 hertz kernel: [35079.520403] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:35 hertz kernel: [35079.696887] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:35 hertz kernel: [35079.872366] usb 1-1.1: new full speed USB device using ehci_hcd and address 22 Jul 11 20:27:35 hertz kernel: [35080.280050] usb 1-1.1: device not accepting address 22, error -32 Jul 11 20:27:35 hertz kernel: [35080.352571] usb 1-1.1: new full speed USB device using ehci_hcd and address 23 Jul 11 20:27:36 hertz kernel: [35080.760031] usb 1-1.1: device not accepting address 23, error -32 Jul 11 20:27:36 hertz kernel: [35080.760406] hub 1-1:1.0: unable to enumerate USB device on port 1 Jul 11 20:27:40 hertz kernel: [35084.912351] usb 1-1.1: new full speed USB device using ehci_hcd and address 24 Jul 11 20:27:40 hertz kernel: [35084.984331] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:40 hertz kernel: [35085.160821] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:40 hertz kernel: [35085.336555] usb 1-1.1: new full speed USB device using ehci_hcd and address 25 Jul 11 20:27:40 hertz kernel: [35085.408543] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:41 hertz kernel: [35085.584900] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:41 hertz kernel: [35085.760503] usb 1-1.1: new full speed USB device using ehci_hcd and address 26 Jul 11 20:27:41 hertz kernel: [35086.168037] usb 1-1.1: device not accepting address 26, error -32 Jul 11 20:27:41 hertz kernel: [35086.240459] usb 1-1.1: new full speed USB device using ehci_hcd and address 27 Jul 11 20:27:42 hertz kernel: [35086.648047] usb 1-1.1: device not accepting address 27, error -32 Jul 11 20:27:42 hertz kernel: [35086.648428] hub 1-1:1.0: unable to enumerate USB device on port 1 Jul 11 20:27:44 hertz kernel: [35089.264398] usb 1-1.1: new full speed USB device using ehci_hcd and address 28 Jul 11 20:27:44 hertz kernel: [35089.336639] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:45 hertz kernel: [35089.512870] usb 1-1.1: device descriptor read/64, error -32 Jul 11 20:27:45 hertz kernel: [35089.688480] usb 1-1.1: new full speed USB device using ehci_hcd and address 29 Jul 11 20:27:45 hertz kernel: [35089.781713] usb 1-1.1: New USB device found, idVendor=0483, idProduct=df11 Jul 11 20:27:45 hertz kernel: [35089.781722] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jul 11 20:27:45 hertz kernel: [35089.781728] usb 1-1.1: Product: STM32 0x418 DFU Bootloade Jul 11 20:27:45 hertz kernel: [35089.781733] usb 1-1.1: Manufacturer: STMicroelectronics Jul 11 20:27:45 hertz kernel: [35089.781737] usb 1-1.1: SerialNumber: STM32 Is this expected behaviour? Is my 8 MHaz crystal broken? Thanks -- Uwe Bonnes bo...@el... Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ---------- |