無法運行STM32 L1 Discovery板

Question

我有新的STM32 L1發現板，它似乎被破壞了。 但我不完全確定。

當通過USB將板連接到Linux機器時，電路板啟動完全正常，並且演示工作正如供應商所述。

但我無法真正連接到這個主板。

➜ lsusb -s 002:074
Bus 002 Device 074: ID 0483:3748 STMicroelectronics ST-LINK/V2

板似乎已連接，在ST-LINK和DISCOVERY之間切換的大跳線（CN3）設置為DISCOVERY。 但是當我嘗試使用st-link實用程序時，我正在接收。

➜  stlink git:(master) ./st-flash --reset erase
libusb_handle_events() timeout
[!] send_recv
libusb_submit_transfer(-6)
[!] send_recv
libusb_submit_transfer(-6)
[!] send_recv
libusb_submit_transfer(-6)
[!] send_recv
libusb_submit_transfer(-6)
[!] send_recv
2015-12-25T19:24:57 INFO src/stlink-common.c: Loading device parameters....
libusb_submit_transfer(-6)
[!] send_recv
libusb_submit_transfer(-6)
[!] send_recv
libusb_submit_transfer(-6)
[!] send_recv
2015-12-25T19:24:57 WARN src/stlink-common.c: unknown chip id! 0
fish: Job 1, './st-flash --reset erase' terminated by signal SIGSEGV (Address boundary error)

OpenOCD也無法與電路板通信。

openocd -f board/stm32ldiscovery.cfg
Open On-Chip Debugger 0.9.0 (2015-12-25-18:43)
Licensed under GNU GPL v2
For bug reports, read
     http://openocd.org/doc/doxygen/bugs.html
adapter speed: 300 kHz
adapter_nsrst_delay: 100
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
none separate
srst_only separate srst_nogate srst_open_drain connect_deassert_srst
Info : Unable to match requested speed 300 kHz, using 240 kHz
Info : Unable to match requested speed 300 kHz, using 240 kHz
Info : clock speed 240 kHz
Error: reset device failed
in procedure 'init' 
in procedure 'ocd_bouncer'

板上芯片是STM32L152RCT6。 之前我曾經使用過STM32F0..4並且從未遇到過這樣的問題，但之前我沒有使用L系列，所以我不確定這是否是主板問題或者我在這里跳過重要的事情。

編輯：使用OpenOCD我發現不是預期的行為。 在第一次運行時，我收到錯誤：

Error: init mode failed (unable to connect to the target)

第二輪：

Error: reset device failed

然后設備從系統中消失， dmesg留下消息：

[ 1336.080239] usb 2-1.1: reset full-speed USB device number 4 using ehci-pci
[ 1336.154250] usb 2-1.1: device descriptor read/64, error -32
[ 1336.329341] usb 2-1.1: device descriptor read/64, error -32
[ 1336.503334] usb 2-1.1: reset full-speed USB device number 4 using ehci-pci
[ 1336.566330] usb 2-1.1: device descriptor read/64, error -32
[ 1336.741385] usb 2-1.1: device descriptor read/64, error -32
[ 1336.915427] usb 2-1.1: reset full-speed USB device number 4 using ehci-pci
[ 1337.317517] usb 2-1.1: device not accepting address 4, error -32
[ 1337.390532] usb 2-1.1: reset full-speed USB device number 4 using ehci-pci
[ 1337.792623] usb 2-1.1: device not accepting address 4, error -32
[ 1337.793110] usb 2-1.1: USB disconnect, device number 4
[ 1337.855642] usb 2-1.1: new full-speed USB device number 5 using ehci-pci
[ 1337.918651] usb 2-1.1: device descriptor read/64, error -32
[ 1338.093691] usb 2-1.1: device descriptor read/64, error -32
[ 1338.267730] usb 2-1.1: new full-speed USB device number 6 using ehci-pci
[ 1338.330727] usb 2-1.1: device descriptor read/64, error -32
[ 1338.505783] usb 2-1.1: device descriptor read/64, error -32
[ 1338.679823] usb 2-1.1: new full-speed USB device number 7 using ehci-pci
[ 1339.081921] usb 2-1.1: device not accepting address 7, error -32
[ 1339.154935] usb 2-1.1: new full-speed USB device number 8 using ehci-pci
[ 1339.557024] usb 2-1.1: device not accepting address 8, error -32
[ 1339.557168] usb 2-1-port1: unable to enumerate USB device

我認為適配器速度可能存在問題，但我現在還不確定。

編輯2：我嘗試使用Windows ST Link Utility，我無法連接到電路板，電路板導致“檢測錯誤”或“連接錯誤”，軟件建議更改SWD頻率或模式。 我完全厭倦了每一個組合，但都沒有效果。

編輯3：如果這有助於某人，董事會被送回，我得到的信息實際上已經破了，我有了新的。 新的按預期完美無瑕地工作。

Answer 1

有時我在GNU / Linux上使用相同的L1 Discovery板。 texane / stlink和OpenOCD都沒有任何修改地完美無缺地檢測到它。 你可以看到輸出：

$ st-util 
2016-01-08T21:55:59 INFO src/stlink-common.c: Loading device parameters....
2016-01-08T21:55:59 INFO src/stlink-common.c: Device connected is: L1 Med-density device, id 0x10186416
2016-01-08T21:55:59 INFO src/stlink-common.c: SRAM size: 0x4000 bytes (16 KiB), Flash: 0x20000 bytes (128 KiB) in pages of 256 bytes
2016-01-08T21:55:59 INFO gdbserver/gdb-server.c: Chip ID is 00000416, Core ID is  2ba01477.
2016-01-08T21:55:59 INFO gdbserver/gdb-server.c: Target voltage is 2917 mV.
2016-01-08T21:55:59 INFO gdbserver/gdb-server.c: Listening at *:4242...
$ openocd -f board/stm32ldiscovery.cfg 
GNU ARM Eclipse 64-bits Open On-Chip Debugger 0.10.0-dev-00141-g09aeb96-dirty (2015-10-28-11:56)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
adapter speed: 300 kHz
adapter_nsrst_delay: 100
Info : The selected transport took over low-level target control. The    results might differ compared to plain JTAG/SWD
none separate
srst_only separate srst_nogate srst_open_drain connect_deassert_srst
Info : Unable to match requested speed 300 kHz, using 240 kHz
Info : Unable to match requested speed 300 kHz, using 240 kHz
Info : clock speed 240 kHz
Info : STLINK v2 JTAG v25 API v2 SWIM v0 VID 0x0483 PID 0x3748
Info : using stlink api v2
Info : Target voltage: 2.913980
Info : stm32l1.cpu: hardware has 6 breakpoints, 4 watchpoints

也許你的電路板真的壞了但在回收之前我建議你進行兩次不同的試驗。 （a）我想在你的問題之后你可能有另一個ST（如你提到的STM32F0..4）板可能帶有ST-LINK適配器。 您可以將其用作外部ST-LINK（請遵循例如此 ）。 （b）嘗試使用STSW-LINK005升級嵌入式ST-LINK固件，該版本也適用於GNU / Linux環境。 在升級之前和之后，該板對我來說都很好。