cmsis-dap ubuntu Error: unable to find CMSIS-DAP device

最近一直在研究stm32f103VET6开发板

使用的野火CMSIS-DAP仿真器进行与指南者板子开发。

使用的是基于ubuntu openocd + vscode +makefile环境进行烧写与程序仿真。
相比IDE也有很多优势，用熟了简单方便而且还快，还是免费环境，更主要是linux环境。

但最近发生两次这个Error: unable to find CMSIS-DAP device问题
进行了大量百度和谷歌，多次安装系统，最终定位了问题。

有很多介绍使用rules.d方案，没有效果！！！！

首先问题定位：

dji@dji-MANIFOLD-2-C:/home$ lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M|__ Port 1: Dev 11, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M|__ Port 2: Dev 6, If 1, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 2: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 2, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 4: Dev 7, If 0, Class=Vendor Specific Class, Driver=ch341, 12M

其中我们注意正常情况下cmsis-dap的驱动情况应该是

        |__ Port 1: Dev 11, If 0, Class=Human Interface Device, Driver=usbhid, 12M

驱动应该为Driver=usbhid，在ubuntu环境下才可以识别，进行仿真与烧写。

本人将cmsis-dap的白色连接线直接连接板卡swd口，不使用jtag口与板卡连接，我们发现以下情况：

dji@dji-MANIFOLD-2-C:/home$ lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M|__ Port 1: Dev 12, If 0, Class=Human Interface Device, Driver=usbfs, 12M|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M|__ Port 2: Dev 6, If 1, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 2: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 2, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 4: Dev 7, If 0, Class=Vendor Specific Class, Driver=ch341, 12M

我们注意到驱动变为了

|__ Port 1: Dev 12, If 0, Class=Human Interface Device, Driver=usbfs, 12M

驱动变更为 Driver=usbfs
此时在vscode中，使用make语句进行烧写代码会遇到以下问题

Open On-Chip Debugger 0.9.0 (2018-01-24-01:05)
Licensed under GNU GPL v2
For bug reports, readhttp://openocd.org/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'swd'
adapter speed: 1000 kHz
adapter_nsrst_delay: 100
none separate
cortex_m reset_config sysresetreq
Error: unable to find CMSIS-DAP deviceMakefile:158: recipe for target 'flash' failed
make: *** [flash] Error 1

解决思路

将驱动usbfs转为usbhid 就可以从新识别。

1.定位驱动符号

插拔cmsis-dap的usb线缆

dji@dji-MANIFOLD-2-C:/home$dmesg
[ 1479.177215] usb 1-3.1: USB disconnect, device number 12
[ 1522.653826] usb 1-3.1: new full-speed USB device number 13 using xhci_hcd
[ 1522.784037] usb 1-3.1: New USB device found, idVendor=0483, idProduct=5750
[ 1522.784044] usb 1-3.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1522.784048] usb 1-3.1: Product: CMSIS-DAP
[ 1522.784051] usb 1-3.1: Manufacturer: embedfire
[ 1522.784054] usb 1-3.1: SerialNumber: 13CFECDCE2E5
[ 1522.786883] hid-generic 0003:0483:5750.000D: hiddev3,hidraw5: USB HID v1.11 Device [embedfire CMSIS-DAP] on usb-0000:00:14.0-3.1/input0

定位标识符1-3.1，在usb连接着cmsis-dap时输入以下命令
在终端依次输入以下命令

sudo sh -c "echo 0 > /sys/bus/usb/devices/你的标识符/authorized"本人为例
sudo sh -c "echo 0 > /sys/bus/usb/devices/1-3.1/authorized"

然后再输入

sudo sh -c "echo 1 > /sys/bus/usb/devices/你的标识符/authorized"本人为例
sudo sh -c "echo 1 > /sys/bus/usb/devices/1-3.1/authorized"

问题得以解决

dji@dji-MANIFOLD-2-C:/home$ lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M|__ Port 1: Dev 14, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M|__ Port 2: Dev 6, If 1, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 2: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 2, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 1: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 12M|__ Port 4: Dev 7, If 0, Class=Vendor Specific Class, Driver=ch341, 12M

驱动恢复成usbhid

dji@dji-MANIFOLD-2-C:~/stm32/code/middle/19_system_tick$ make flash
openocd -f openocd.cfg -c init -c halt -c \
"flash write_image erase ./build/build_pro.elf" -c reset -c shutdown
Open On-Chip Debugger 0.9.0 (2018-01-24-01:05)
Licensed under GNU GPL v2
For bug reports, readhttp://openocd.org/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'swd'
adapter speed: 1000 kHz
adapter_nsrst_delay: 100
none separate
cortex_m reset_config sysresetreq
Info : CMSIS-DAP: SWD  Supported
Info : CMSIS-DAP: Interface Initialised (SWD)
Info : CMSIS-DAP: FW Version = 2.0.0
Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 1 TDO = 1 nTRST = 0 nRESET = 1
Info : CMSIS-DAP: Interface ready
Info : clock speed 1000 kHz
Info : SWD IDCODE 0x1ba01477
Info : stm32f1x.cpu: hardware has 6 breakpoints, 4 watchpoints
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x41000000 pc: 0x080006b8 msp: 0x2000fff8
auto erase enabled
Info : device id = 0x10036414
Info : flash size = 512kbytes
wrote 4096 bytes from file ./build/build_pro.elf in 0.476039s (8.403 KiB/s)
target state: halted
target halted due to breakpoint, current mode: Thread
xPSR: 0x61000000 pc: 0x2000003a msp: 0x2000fff8
shutdown command invoked

系统可以完成烧写工作