The module is built around an LS Research TiWi-BLE Integrated Transceiver Modules for WLAN 802.11 b/g/n and Bluetooth. The module implements the necessary PHY/MAC layers to support WLAN applications in conjunction with a host processor over a SDIO interface. The module also provides a Bluetooth platform through the HCI transport layer. Both WLAN and Bluetooth share the same antenna port.
[[File:Dwm_02.png|300px|frameless|border]]=== Features ===
* Based on Texas Instruments WL1271L Transceiver
* IEEE 802.11 b,g,n,d,e,i, compliant
* Bluetooth 2.1+EDR, Power Class 1.5
* Full support for BT4.0 BLE and ANT
* Reduced footprint: 25 mm x 38 mm
* Low height profile
* U.FL connector for external antenna
* Integrated band-pass filter
* Industrial operating temperature range: -40 / +85 °C
==Specification= Interface timings ===
===Power consumption===Please refer to the [http://www.lsr.com/downloads/products/330-0087.pdf TiWi-BLE Datasheet] for SDIO [WiFi] and UART [Bluetooth] interface timings.
==Pinout and detailed pin functions==
DWM can be connected to the host board through the J1 connector. ===Pinout reference=== The following picture shows the reference pins of the J1 connector (placed on the bottom side of the DWM module): [[File:Dwm_05.png|300px|frameless|border]] ===J1 connector pinout table=== The following table reports the connector pinout:
===Reset=Connector part number ==== * on module: Molex 501920-3001 * on Carrier board: for example Molex 52991-0308 (dependon on stand-off chosen) ==Antenna connector== The following picture shows the position of the WiFi/Bluetooth antenna connector: [[File:Dwm_06.png|300px|frameless|border]]
==Integration guide==
This section provides useful information and resources that allow let the system designer to integrate the DWM module in his/her the application very quickly.
=== Typical scenariosscenario=== The following picture shows the conceptual block diagram of the application where the host is an Embedded PC. [[File:Dwm-epc-scenario.png|thumb|center|400px|Typical scenario]] ====Electrical guidelines====*Keep SDIO lines as short as possible.*5V and 3.3V rails can power up in any order*Keep WIFI_EN asserted during power-up sequence
===Mechanical information===
The following image shows the module dimensions: [[File:Dwm-layout-top.png|thumbnail|center|300px|DWM dimensions]] * DXF: httphttps://www.dave.eu/downloadsystem/restrictedfiles/add-onarea-modulesriservata/dwm/CS061412.dxfdxf_.zip
[[FileThe component view (top and bottom) is available as PDF file: * PDF: https:Dwm//www.dave.eu/system/files/area-layoutriservata/CS061412B_all_view.pdf ===3D=== * IDF (3D): https://www.dave.eu/system/files/area-topriservata/dwm-3D.png|thumbnail|center|200px|zip===Calibration process===The radio interface of the DWM Layout Top]module is configured by several parameters. These parameters are set through a calibration process, that is described in detail [http://processors.wiki.ti.com/index.php/WL12xx_NLCP_Calibration_Process here].
The component view calibration process—that produces an NVS file—is not trivial. Apart from the chip itself (top Texas Instruments WL1271L in this case), it depends on:*the antenna - a list of [https://www.lairdconnect.com/wireless-modules/wifi-modules-bluetooth/tiwi-ble#certified-antennas certified antennas] and bottom) is avalable as PDF cables can be found in the TiWi Module device datasheet. Use of these antennas does not require additional FCC/IC/ETSI certifications.*the firmware version downloaded to the chip: please refer to the proper firmware available on your Linux distribution for matching the kernel driver and run properly the calibration process*the initialization data, typically stored in an INI file: please refer to the [https://www.lairdconnect.com/wireless-modules/wifi-modules-bluetooth/tiwi-ble#documentation Laird Connectivity TiWi documentation] for checking the proper INI fileconfiguration*the Calibrator source code [https://github.com/TI-OpenLink/ti-utils/tree/ol_R5.SP8.01 here]More information about kernel driver and calibration on the [https://www.lairdconnect.com/forum/tiwi-ble/online-documentation/support-and-tools Laird Support and Tools] web page.
* PDF==== MAC address ====The MAC address is set at calibration time for WLAN. To use the built in MAC address for WLAN be sure to pass a MAC address of <code>00:00:00: http00:00:00<//wwwcode> as a parameter to the auto-calibrate function.dave.eu/download/restricted/add-onTo set a custom MAC address for WLAN just pass the desired value into the auto-modules/dwm/CS061412_component_viewcalibrate function.pdf
===3D= NVS ready-to-use calibration files ====The following links refer to specific use cases, where the resulting NVS file is provided along with DAVE Embedded Systems products integrating DWM module.* IDF [[XUELK-AN-001:_Using_WiFi-Bluetooth_combo_plugin_with_SBC_Lynx|SBC Lynx (3DXUELK)]]*[[XUELK-AN-002: _Running_Debian_distribution#Bluetooth_and_WiFi|SBC Lynx (Debian)]]The <code>nvs.bin</code> file has been created using the certified antenna [http://www.davemolex.eucom/downloadmolex/restrictedproducts/datasheet.jsp?part=active/add0479500011_ANTENNAS.xml Molex 47950-on-modules/dwm/CS0614120011] Please refer to the below Laird Connectivity TiWi-3DBLE documentation for more information.zip
===Qualification tests=References ==* [https://www.lairdconnect.com/wireless-modules/wifi-modules-bluetooth/tiwi-ble#documentation Laird Connectivity TiWi-BLE documentation]* [https://www.lairdconnect.com/documentation/tiwi-ble-datasheet TiWi-BLE datasheet]* [https://www.lairdconnect.com/documentation/tiwi-antenna-design-guide Antenna Design Guide]* [https://www.lairdconnect.com/documentation/tiwi-emc-compliance-guide EMC Compliance Guide]* [https://www.lairdconnect.com/documentation/wlan-ini-etsi-all-certified-antennas WLAN INI all certified antennas]* [http://linuxwireless.sipsolutions.net/en/users/Drivers/wl12xx/ WL127x Linux Calibrator]Since January 15, 2021, TI's processors wiki site has been shut down. The following original documentation is available only as cached pages.* [http://processors.wiki.ti.com/index.php/WL127x WL127x Main page]* [http://processors.wiki.ti.com/index.php/WL127x_WLAN_API_Information WL127x WLAN API]* [http://processors.wiki.ti.com/index.php/WL12xx_NLCP_Calibration_Proccess Calibration Process]