Wireless Product Business Group / Wireless module & Development Division Document No. Rev. Product No. Project Code Model No. WM-BN-BM-26_A User Manual v1.0 WM-BN-BM-26_A User Manual SOURCE ORGANIZATION: Prepared by︰ Date: Checked by︰ Date: Approved by︰ Date: Concurrence︰ Date: 1.
Document released by WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 2 Change List Rev. 1.0 Date 15/8/25 Description of change Page Par All All Approval Initial release 2 The content of this document is to be treated as strictly confidential and is not to be disclosed, reproduced or used, except as authorized in writing by Universal Scientific Industrial Co., Ltd. Copyright © 2011 Universal Scientific Industrial Co. ,Ltd.
Document released by WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 3 Table of Contents 1 Introduction...................................................................................................................................4 2 Block Diagram..............................................................................................................................4 3 PCB Layout Guideline.................................................................................
Wireless Product Business Group / Wireless module & Development Division 1 Introduction This document provides general guidance to OEMs for the integration of WLAN 802.11b/g/n with BT4.1 + HS on the system platform. This document also describes the interfaces between WLAN/BT devices and power circuits for supporting appropriate system reference clock and power supplies from the system point of view. Figure 1 shows the system block diagram of WM-BN-BM-26_A Evaluation Kit.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 5 2 PCB Layout Guideline DC power • Use wide traces for power supply lines. Know the maximum currents being carried on each power supply trace, and make the trace widths proportionate to the current (especially for long trace lengths). Where possible, fill large areas with copper to distribute the highest currents. These measures minimize IR drops, line inductance, and switching transients.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 6 Additional RF-specific PCB design guidelines include: • Keep the RF traces on the component sides (top or bottom layer) using micro-strip or CGW techniques where possible. • Screen these traces to avoid electromagnetic interference. • Use internal layers with strip-line techniques if necessary. • Maintain continuous ground below micro-strip traces, beside CGW traces, and above and below strip-line traces.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 7 Clock LPO_32K(32.768 KHz) is clock need isolated by ground to avoid noise. Both supply variation and module external clock of signals onto this radio reference must be avoided. The clock signal trace, into the module, must be protected against corruption, by other clocks, power supply transients, and digital noise.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 8 3 Reference Circuit Note: 1. It’s highly recommended that keeping the top layer of the module mounting area as ground plane 2. Avoid routing trace go through the module underneath Module Interconnection 8 The content of this document is to be treated as strictly confidential and is not to be disclosed, reproduced or used, except as authorized in writing by Universal Scientific Industrial Co., Ltd.
Document released WM-BN-BM-26_A User Manual Description 4 Doc No. Date. 15/8/25 Rev Page 1.0 11 Module Footprint Recommendation (Top View) 5 Pin Definition Description 11 The content of this document is to be treated as strictly confidential and is not to be disclosed, reproduced or used, except as authorized in writing by Universal Scientific Industrial Co., Ltd. Copyright © 2011 Universal Scientific Industrial Co. ,Ltd.
Document released WM-BN-BM-26_A User Manual Description Pin# Pin Name Doc No. Date. Type 15/8/25 Rev Page 1.
Document released WM-BN-BM-26_A User Manual Description Pin# Pin Name Doc No. Date. Type 15/8/25 Rev Page 1.0 13 Description wake-up should be performed. 38 BT_HOST_WAKE O Bluetooth HOST_WAKE 37 BT_DEV_WAKE I Bluetooth DEV_WAKE 24 BT_REG_ON I Used by PMU to power up or power down the internal BCM43438 regulators used by the BT/FM section. This pin has an internal 200kOhm pull-down resistor that is enabled by default. It can be disabled through programming.
Document released WM-BN-BM-26_A User Manual Description Pin# Pin Name Doc No. Date. Type H1~H9 GND - 15/8/25 Rev Page 1.0 14 Description Ground Host interface SDIO/gSPI mode selection 6 SDIO/gSPI function PIN number 8、10、11、12、13 and 14 as SDIO/SPI interface. The WM-BN-BM-26_A WLAN section supports SDIO version 2.0 for both 1-bit(25Mbps) and 4-bit modes (100Mbps), as well as high speed 4-bit mode (25MHz clocks – 200Mbps). It has the ability to map the interrupt signal on a GPIO pin.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 16 7 WLAN Function SW Setup Follow driver installation procedure steps to install the USI_WM_BN_BM_26_A module driver on your PC (OS: Ubuntu 12.04 / Linux 3.2.0-24). 1 Open a Terminal window. 2 Make a wifi folder on /home/xxx/Desktop root@xxx:/home/xxx/Desktop# mkdir wifi copy dhd, dhd.ko, sdio-g-mfgtest-seqcmds.bin, wl and bcm943438wlpth_usi_bm26a.txt files to /home/xxx/Desktop/wifi folder.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 17 seqcmds.bin nvram_path=bcm943438wlpth_usi_bm26a.txt” 7 If bring-up WiFi successful, you will see the below message by dmesg cmd, [ 459.514234] dhd_module_init in [ 459.514241] no wifi platform data, skip [ 459.514234] dhd_module_init in [ 459.514241] no wifi platform data, skip [ 459.515120] F1 signature read @0x18000000=0x1541a9a6 [ 459.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 18 8 BT Function SW Setup Follow driver installation procedure steps to install the USI_WM_BN_BM_26_A module driver on your PC (OS: XP). Please install ActivePerl software into your PC, the version is ActivePerl-5.8.4.810-MSWin32-x86.msi 1 2 Please install BRCM MyBluetool into your PC, the version is BLUETOOL_MI_1.7.0.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 19 3 Please place 4 files on the same folder, those file as below, HCICommander.exe BCM4343A1_001.002.009.0033.0084_ORC_USI_WM-BN-BM-26_A_CL2.hcd 1_Download_firmware.bat. 2_Enable_DUT.bat 4 It is use UART interface to enable BlueTouth function, so we use a use-to serial RS-232 cable to download BT firmware on WM-BN-BM-26_A EVB. 5 Please execute 1_Download_firmware.bat file to download firmware.
Document released WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 6 Please execute 2_Enable_DUT.bat file to set BT enter DUT mode. 7 If successful, you can use Anritsu MT8852 or R&S CBT to do BT RF performance test. 1.0 20 20 The content of this document is to be treated as strictly confidential and is not to be disclosed, reproduced or used, except as authorized in writing by Universal Scientific Industrial Co., Ltd. Copyright © 2011 Universal Scientific Industrial Co. ,Ltd.
Document released by WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 21 Class B: (Section 15.105) FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Document released by WM-BN-BM-26_A User Manual Description Doc No. Date. 15/8/25 Rev Page 1.0 22 RF Exposure Information (SAR) This device meets the government’s requirements for exposure to radio waves. This device is designed and manufactured not to exceed the emission limits for exposure to radio frequency (RF) energy set by the Federal Communications Commission of the U.S. Government. The exposure standard employs a unit of measurement known as the Specific Absorption Rate, or SAR.
Canada, Industry Canada (IC) Notices This device complies with Canada licence‐exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Canada, avis d'Industry Canada (IC) Cet appareil est conforme avec Industrie Canada exemptes de licence RSS standard(s).
