Difference between revisions of "DWS ADD-ON/DWS Hardware/Integration guide"
< DWS ADD-ON | DWS Hardware
(→Integration guide) |
(page review) (Tag: Visual edit) |
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===Electrical guidelines=== | ===Electrical guidelines=== | ||
| − | * | + | *SDIO lines |
| − | * | + | **50ohm single ended impedance |
| − | * | + | **keep lines as short as possible |
| + | **place series resistor on the carrier for impedance matching (tipical 22ohm) | ||
| + | *5V and 3.3V rails can power up in any order | ||
| + | **by default 5V rail is not used by the add-on | ||
| + | *keep WIFI_EN asserted during power-up sequence | ||
| + | |||
| + | === Customizations === | ||
| + | Many customization are potentially available for this module: | ||
| + | * I/O with 1.8V levels | ||
| + | ** applies to all the interfaces (SDIO, UART, EN) | ||
| + | * the module can be powered by the 5V rail only | ||
| + | * I2S interface can be made available for BT operations | ||
| + | Ask more information to [https://www.dave.eu/helpdesk technical support] about this topic. | ||
==Calibration process== | ==Calibration process== | ||
| − | The radio interface of the DWS module is configured by several parameters. These parameters are set | + | The radio interface of the DWS module is configured by several parameters. These parameters are set in Linux user space. |
| + | |||
| + | ==== Regulatory domain ==== | ||
| + | For proper operation in the country where the system is deployed, the regulatory domain has to be configured. See [[DWS ADD-ON/Regulatory domain setup|this section]] for more details | ||
==== MAC address ==== | ==== MAC address ==== | ||
| − | The MAC address is | + | The MAC address is fused inside the module and assured to be unique |
| + | == Antenna selection == | ||
| + | The WiFi module featured inside this add-on provides some precertifications that allow the final customer to decrease the amount of test to perform to obtain the needed certification. | ||
| − | + | To be able to use these precertifications a proper antenna has to be selected. Contact [https://www.dave.eu/helpdesk technical support] for more informations. | |
| − | |||
| − | |||
===Tested Antennas=== | ===Tested Antennas=== | ||
Following a list of tested and approved antennas: | Following a list of tested and approved antennas: | ||
| − | * Laird technology 001-0001 with UFL to SMA adapter [[File:001-0001.png|thumb| | + | * Laird technology 001-0001 with UFL to SMA adapter [[File:001-0001.png|thumb|135x135px|none| Laird Connectivity 001-0001 ]] [[File:1300-00041.png|thumb|135x135px|none| UFL to SMA adapter ]] |
| + | *J2 Antennas 2JF0102P patch antenna[[File:2jf0102p-01.jpg|left|thumb|135x135px|J2 Antennas 2JF0102P]] | ||
* | * | ||
{{ImportantMessage|text=Molex 47950-0011 valid only for '''No EU''' countries - see [https://www.lairdconnect.com/documentation/regulatory-information-tiwi-ble link][[File:4795.png|thumb|100px|none]] }} | {{ImportantMessage|text=Molex 47950-0011 valid only for '''No EU''' countries - see [https://www.lairdconnect.com/documentation/regulatory-information-tiwi-ble link][[File:4795.png|thumb|100px|none]] }} | ||
Revision as of 08:36, 19 January 2022
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|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Jan 2022 | First version | |
Contents
Integration guide[edit | edit source]
This section provides useful information and resources that let the system designer integrate the DWS module in the application very quickly.
Typical scenario[edit | edit source]
The following picture shows the conceptual block diagram of the application where the host is an Embedded System.
Electrical guidelines[edit | edit source]
- SDIO lines
- 50ohm single ended impedance
- keep lines as short as possible
- place series resistor on the carrier for impedance matching (tipical 22ohm)
- 5V and 3.3V rails can power up in any order
- by default 5V rail is not used by the add-on
- keep WIFI_EN asserted during power-up sequence
Customizations[edit | edit source]
Many customization are potentially available for this module:
- I/O with 1.8V levels
- applies to all the interfaces (SDIO, UART, EN)
- the module can be powered by the 5V rail only
- I2S interface can be made available for BT operations
Ask more information to technical support about this topic.
Calibration process[edit | edit source]
The radio interface of the DWS module is configured by several parameters. These parameters are set in Linux user space.
Regulatory domain[edit | edit source]
For proper operation in the country where the system is deployed, the regulatory domain has to be configured. See this section for more details
MAC address[edit | edit source]
The MAC address is fused inside the module and assured to be unique
Antenna selection[edit | edit source]
The WiFi module featured inside this add-on provides some precertifications that allow the final customer to decrease the amount of test to perform to obtain the needed certification.
To be able to use these precertifications a proper antenna has to be selected. Contact technical support for more informations.
Tested Antennas[edit | edit source]
Following a list of tested and approved antennas:
- Laird technology 001-0001 with UFL to SMA adapter
- J2 Antennas 2JF0102P patch antenna
 |
