Open main menu

DAVE Developer's Wiki β

Changes

DWM ADD-ON/DWM Hardware/Integration guide

159 bytes added, 15:15, 5 November 2020
no edit summary
!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes
|-
|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|X1.Y0.Z0|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Month YearNov 2020|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|TBD|-|-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|[TBD_link X.Y.Z]|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Month Year|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|TBD|-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|...|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|...|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|...New documentation layout
|-
|}
<section begin=Body/>
''TBD: aggiungere le 2 foto TOP e BOTTOM con il CS e il serial number''==Integration guide==This section provides useful information and resources that let the system designer integrate the DWM module in the application very quickly. === Typical scenario=== 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]][[File:AXEL_Lite-EVB-DWM-connector.png|thumb|center|400px|Real case scenario on AXEL Lite SOM Evaluation Kit|link== Hardware versioning and tracking==AXEL Lite SOM/AXEL Lite Evaluation Kit]]
DWM SOM implements well established versioning ===Electrical guidelines===*Keep SDIO lines as short as possible.*5V and tracking mechanisms:3.3V rails can power up in any order*Keep WIFI_EN asserted during power-up sequence
* PCB version ===Calibration process===The radio interface of the DWM module is copper printed on PCB itself, as shown in Figconfigured by several parameters. 1* serial number: it is printed on These parameters are set through a white labelcalibration process, as shown that is described in Fig. 2: see also detail [[Product_serial_number | Product serial number]] page for more details* ConfigIDhttp: it is used by software running on the board for the identification of the product model/hardware configuration/processors.wiki.ti.com/index. For more details, please refer to [[ConfigID_and_UniqueID | this linkphp/WL12xx_NLCP_Calibration_Process here]]** (''TBD: definire/identificare dove è memorizzato il CONFIGID nel prodotto in questione'') On DWM SOM ConfigID is stored in these areas of OTP .
The calibration process—that produces an NVS file—is not trivial. Apart from the chip itself (Texas Instruments WL1271L in this case), it depends on:
*the antenna
*the firmware version downloaded to the chip
*the initialization data, typically stored in an INI file.
The following links refer to specific use cases, where the resulting NVS file is provided along with DAVE Embedded Systems products integrating DWM module.*[[FileXUELK-AN-001:DWM_Using_WiFi-bottom.pngBluetooth_combo_plugin_with_SBC_Lynx|thumbSBC Lynx (XUELK)]]*[[XUELK-AN-002:_Running_Debian_distribution#Bluetooth_and_WiFi|300px|center|Fig.1 PCB versionSBC Lynx (Debian)]]
=== References ===
* [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]
* [http://www.lsr.com/products-wiki?topic=TiWi-BLE+Downloads TiWi-BLE Downloads]
* [http://www.lsr.com/downloads/products/330-0078.pdf INI Guide]
* [http://www.lsr.com/downloads/products/330-0105.pdf Antenna Design]
* [http://www.lsr.com/downloads/products/330-0053.pdf EMC Guide]
* [http://wireless.kernel.org/en/users/Drivers/wl12xx/calibrator Linux Calibrator]
[[File:DWM-top.png|thumb|300px|center|Fig.2 Serial number]]
dave_user, Administrators
5,190
edits