Hello guys,
BN: Seeed XIAO BLE - nRF52840
VID: 2886
PID: 0045
SN: BE99F09A1C234BB2
On Windows 7 / 8
=> Which Library are you using ? nRF52 board or nRF52 mbed-enabled board ?
=> Which bootloader are you using ? J-link for Bluefruit or Bootloader DFU for Bluefruit ? ARM CMSIS or STLINK ? It seems that none can write to the Seeeduino BLE ( not SENSE )
I have been using DFU :
Upgrading target on COM7 with DFU package C:\Users\philgib\AppData\Local\Temp\arduino_build_505718\Blink.ino.zip. Flow control is disabled, Single bank, Touch disabled
Opened serial port COM7
Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, application size: 21220
Sending DFU start packet
Sending DFU init packet
Sending firmware file
########################################
Activating new firmware
Device programmed.
DFU upgrade took 1.9576818943023682s
Board at COM7 is not available
Thank you