WH-SSD40NBT

SSD40NBT

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40 Series 802.11a/b/g/n Wi-Fi + Bluetooth v2.1 SDIO SiP module

Specifications

Antenna Type

External

Chipset (Wireless)

Broadcom BCM4329

Frequency Range (Max)

2495 MHz

Frequency Range (Min)

2400 MHz

Frequency Range 2 (Max)

5825 MHz

Frequency Range 2 (Min)

5150 MHz

Logical Interfaces

SDIO, Serial

OS/Software

Windows Mobile, Windows CE, Linux

Product Type

Embedded Module

System Architecture

Hosted

Technology

802.11abgn, Bluetooth Classic

Type

Module

Documentation

Name	Part	Type	Last Updated
Datasheet - SSD40NBT	WH-SSD40NBT	Datasheet	09/05/2024

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FAQ

For SSD45N/MSD45N in Linux platform, if during the regulation test, need to adjust 3dB in 2.4G, how to set this number during the driver initialization so that the TX power will match what they test in regulation test?

SMU is the safest way to set it.

# smu_cli set tx-max-bg 6

# smu_cli get tx-max-bg

Reg Domain: WW

BG Antenna Adj: 3 dB

A Antenna Adj: 0 dB

Remember the value is in ½ db increments so you need to use 6 to get 3 dBm.

Also fw_setenv is able to set it as well.
rfPowerAtten2=6

# fw_printenv

...

usbnet_devaddr=de:ad:be:ef:00:01

md5_at91bs=75a5a900d8df5657ebc89796756eed70

md5_u-boot=cc8187cf4471832e51580a284df37f86

md5_kernel-a=300d5b9d93abaec368fb700933a95bdb

md5_rootfs-a=62e98ead848d552ab6199b6ed543dd4d

bootargs=console=ttyS0,115200 loglevel=4 rw noinitrd mem=64M rootfstype=ubifs root=ubi0:rootfs ubi.mtd=6

bootcmd=nand read 0x22000000 0x000e0000 0x00500000; bootm

rfPowerAtten2=6