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2.) Unplug the USB cable (if plugged).
3.) Plug the USB cable.
4.) The mass storage device "ST IDB011VX" should be present among the devices in
Windows "Devices and drives".
5.) Put back the jumper JP4 (fitted position).
6.) Now user should able to use the USB_CMSISDAP firmware in order to fix the code
in the WB2072-00 module.
2. It is not possible to connect to the WB2072E00A, WB2072-00 module with the on board
CMSIS-DAP debugger/programmer.
a. The WB2072-00 could be under reset, or the SWD pins have been configured in a
different mode at the startup of the application, or the application sets the device in
DEEPSTOP modes which powers off the debug port.
In such cases, it is possible to recover the WB2072-00 status as follow:
1. Plug the USB cable in order to power up the board.
2. Press and hold the PUSH1 button.
3. Press the RESET button.
4. This operation activates the internal UART bootloader: now it is possible to connect
the CMSIS-DAP debugger/programmer to the WB2072-00 module.
NOTES:
Please refer to the STSW-BNRGLP-DK, C:{Installation_Path}\
ST\BlueNRG-LP DK
x.x.x\Docs\BlueNRG-LP_Debugging_Guidelines\BlueNRG-LP_Debugging_Guidelines.ht
ml
document for useful guidelines to be followed in these scenarios:
CMSIS-DAP programming vs BlueNRG-LP running application in low power modes
Debugging vs BlueNRG-LP running application in low power modes.
4. Acronyms and abbreviations
Acronym
Bluetooth LE
DK
SW
USB
Table 1. List of acronyms
©
Copyright
JORJIN TECHNOLOGIES INC. 2020
http://www.jorjin.com.tw
CONFIDENTIAL
Doc No: WB2072E00A-QSG-D01
Description
Bluetooth Low Energy
Development kit
Software
Universal serial bus
Page 7
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