Zigbee NCP

This is the common Zigbee NCP firmware release built for Bouffalolab BL702 platform.

NCP uses BLZ (BouffaloLab’s Zigbee serial protocol) to interact with host application (HOST).

Note： NCP image is built with 512KB flash partition table.

UART

There are 2 uarts used by NCP:

• UART0 for firmware download and communication between NCP and HOST.

• UART1 for debug purpose,e.g. log print, cli, and etc.

UART0 and UART1 pin configrations:

Name	TX	RX	BANDRATE
UART0	14	15	2000000
UART1	17	27	2000000

Download image

Use bflb_iot_tool or BLDevCube to download NCP image.

• Put the board to the download mode:

  • Press and hold the RST button.
  • Click the RST button.
  • Release the BOOT button.

• Use bflb_iot_tool or BLDevCube to download NCP image.

  bflb-iot-tool --chipname=bl702 --port=/dev/ttyACM0 --baudrate=2000000 --firmware=bl702_zigbee_ncp_whole.bin --single

Start NCP

Click the RST button to reboot and run NCP, and from UART1, you will see the chip boot infos and NCP version, e.g.

```shell
Starting bl702 now....
------------------------------------------------------------
RISC-V Core Feature:RV32-ACFIMX
Build Version: release_bl_iot_sdk_1.6.40-2152-g57155a45f-dirty
Std BSP Driver Version: 13abc85
Std BSP Common Version: 9fe1995
RF Version: e118aad
Build Date: Jun 12 2025
Build Time: 15:31:55

...

NCP Version:BL702_NCP_20250612-153148
bl_dma_uart_init: 0

```

User Guide

See docs.