Here provides an easy introduction of How to set up of nRF52840 & nRF52833 Module Demo board MDBT50Q-DB-40 (for nRF52840) & MDBT50Q-DB-33 (for nRF52833)
MDBT50Q-DB-40, built by Raytac's MDBT50Q-1MV2 with Red PCBA deployed nRF52840 SoC with Bluetooth 5 & Thread Combo module Demo Board, equipped Raytac's MDBT50Q-1MV2 with 1MB Flash Memory and 256KB RAM and Chip Antenna.
MDBT50Q-DB-33, build by Raytac's MDBT50Q-512K with Green PCBA deployed nRF52833 SoC with Bluetooth 5 & Thread Combo module demo board, equipped Raytac's MDBT50Q-512K with 512KB Flash Memory and 128KB RAM and Chip Antenna.
Both demo boards are BT5.1 / BT5 / BT4.2 Bluetooth qualified and FCC, IC, CE, Telec, KC, SRRC, RCM, NCC, WPC pre-certified.
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MDBT50Q-DB-40 package contains:
- 1 x MDBT50Q-DB-40
- 1 x IDC Wire
- 1 x Data/Power Mini USB Wire
Using Nordic DK as J-Link (either nRF51, nRF52 or nRF52840 DK) Connects with MDBT50Q by IDC wire. Powered up the MDBT50Q-DB by Micro USB wire.
MDBT50Q-DB-40 Schematic
MDBT50Q-DB-33 Schematic
Firmware Set Up Resource
Firmware Development
2. Unzip SDK
3. Use S140 Softdevice Softdevice (\nRF5_SDK_15.2.0_9412b96\components\softdevice\s140\hex\
s140_nrf52_6.1.0_softdevice.hex)
For more detail about the Firmware development, please refer to another article for more detail:
s140_nrf52_6.1.0_softdevice.hex)
For more detail about the Firmware development, please refer to another article for more detail:
Firmware Program Steps
1. Selecting Programmer in nRF Connect
2. Selecting Program Device (refer to Nordic DK)
3. Adding Hex File
4. Erase and Write
Note: If MDBT50Q-DB is powered by computer, it may detect USB connection. Pls click "No" to proceed and complete the firmware program.
**MDBT50Q-DB USB DFU
nRF52840 provides USB interface which enable to support Device Firmware Update (DFU) through USB directly.
Hardware Setup
1. Press Switch 4 and Hold
2. Power in the Demo Board
3. Blue LED stays light
4. Demo Board successfully enter USB DFU Mode
Firmware Setup
Note
- USB DFU works in DOS mode only.
- USB DFU only works with previous loaded firmware employs USB Bootloader feature only.
- A single, merged hex file is required. Need to combine Bootloader, Softdevice, and Application.
- Firmware DFU requests a zipped file.
USB Firmware DFU Steps:
1. When MDBT50Q-DB Blue LED Stays Light (shows ready to USB DFU Mode)
2. Find out the Com Port No. changed from "nRF52 USB CDC BLE Demo(COMxx)" tonRF52"SDFU USB(COMxx)"
3. Proceed the USB DFU
Enter DOS mode and select the file with the code in below
nrfutil dfu usb_serial -pkg usbd_ble_uart.zip -p COMxx
nrfutil dfu usb_serial -pkg usbd_ble_uart.zip -p COMxx
(usbd_ble-uart.zip refer to the code to update)
(xx refer to Com Port No.)
4. USB DFU Completed
Tips:
1. Bootloader example Code can be found:
\nRF5_SDK_15.2.0_9412b96\examples\dfu\secure_bootloader\pca10056_usb\
Need to produce "micro_ecc_lib_nrf52.lib" and "public key" for latter development
2. How to merger the firmware
- Produce: bootloader_settings.hex
hex --application-version 3 --bootloader-version 2 --bl-settings-version 1
bootloader_settings.hex
- Merge bootloader 及bootloader settings file：
- Merge bootloader 、bootloader settings及softdevice：
output_2.hex
- Merge the merged bootloader 、bootloader settings、softdevice及application：
3. Zip the firmware
nrfutil pkg generate --hw-version 52 --sd-req 0xae --application-version
0xFF --application usbd_ble_uart.hex --key-file dfu.pem usbd_ble_uart.zip
Raytac Corporation 勁達國際電子有限公司
A BT5 & BT 4.2 & BTv4.1 module maker based on Nordic nRF51 & nRF52 solution
(nRF51822 & nRF51422 & nRF52832 & nRF52810 & nRF52840)
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