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pmod:pmodwifi:reference-manual [2022/09/13 15:19] – changed forum.digilentinc.com to forum.digilent.com Jeffreypmod:pmodwifi:reference-manual [2023/12/04 18:34] (current) – Martha
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 +====== Pmod WiFi Reference Manual ======
  
 +
 +<WRAP center round important 60%>
 +The Pmod WiFi is retired and no longer for sale in our store.
 +</WRAP>
 +
 +The Digilent Pmod WiFi (Revision B) provides WiFi access through the Microchip® MRF24WG0MA Wi-Fi™ radio transceiver module. Users can communicate with the IEEE 802.11g compliant chip through SPI and achieve data rates up to 54 Mbps.
 +
 +{{Digilent Image Gallery 
 +| image = {{:reference:pmod:pmodwifi:pmodwifi-0.png?direct |}}
 +| image = {{:reference:pmod:pmodwifi:pmodwifi-1.png?direct |}}
 +| image = {{:reference:pmod:pmodwifi:pmodwifi-2.png?direct |}}
 +| image = {{:reference:pmod:pmodwifi:pmodwifi-3.png?direct |}}
 +| image = {{:reference:pmod:pmodwifi:pmodwifi-4.png?direct |}}
 +}} 
 +
 +== Download This Reference Manual ==
 +  * {{:reference:pmod:pmodwifi:pmodwifi_rm.pdf| PDF}}
 +
 +----
 +
 +===== Features =====
 +  * IEEE 802.11-compliant RF transceiver
 +  * Send data at 1 and 2 Mbps up to 400 m
 +  * Serialized unique MAC address
 +  * Integrated PCB antenna
 +  * Radio regulation certification for the US, Canada, Europe and Japan 
 +  * Wi-Fi certified
 +  * 12-pin Pmod connector with SPI interface
 +
 +----
 +=====Functional Description =====
 +The %%Pmod WiFi%% provides %%Wi-Fi%% access through the Microchip® %%MRF24WG0MA%% %%Wi-Fi™%% radio transceiver module. Users can communicate with the IEEE %%802.11g%% compliant chip through %%SPI%% and achieve data rates up to 2 Mbps. It is designed for use with Microchip microcontroller families (PIC18, PIC24, dsPIC33, and PIC32) and the Microchip TCP/IP Stack available at www.microchip.com/wireless.
 +
 +
 +
 +----
 +===== Interfacing with the Pmod=====
 +The %%Pmod WiFi%% communicates with the host board using [[pmod:communication_protocols:|SPI]]. A active low hardware reset pin [[pmod:pmodwifi:reference-manual#pinout_table|pin 8]] is provided for the host board to reset the Pmod WiFi. Additionally, an active low interrupt [[pmod:pmodwifi:reference-manual#pinout_table|pin 7]] is provided to allow the Pmod WiFi signal to the host board when data is available for the host device and to signal when the data transfer has been completed.
 +
 +
 +==== Pinout Description Table ====
 +^  Pin  ^  Signal  ^  Description             ^ Pin  ^ Signal     ^ Description             ^
 +|  1    |  CS      |  Chip select             |  7    |  INT        |  Interrupt               |
 +|  2    |  SDI     |  SPI master              |  8    |  RESET      |  Reset                   |
 +|  3    |  SDO     |  SPI slave               |  9    |  WP         |  Write-protected         |
 +|  4    |  SCK     |  Serial clock            |  10   |  HIBERNATE  |  Hibernate               |
 +|  5    |  GND     |  Power Supply Ground     |  11   |  GND        |  Power Supply Ground     |
 +|  6    |  VCC     |  Power Supply (3.3V/5V)  |  12   |  VCC        |  Power Supply (3.3V/5V)  |
 +
 +
 +Any external power applied to the %%Pmod%% must be within 2.5V and 5.5V; however, it is recommended that Pmod is operated at 3.3V.
 +----
 +===== Physical Dimensions =====
 +The pins on the pin header are spaced 100 mil apart. The PCB is 1.7 inches long on the sides parallel to the pins on the pin header and 1.0 inches long on the sides perpendicular to the pin header.
 +----
 +===== Additional Information =====
 +The schematics of the %%Pmod WiFi%% are available {{reference:pmod:pmodwifi:pmodwifi_sch.pdf|here}}. Additional information about the %%MRF24WG0MA%% including communication modes and specific timings of the chip can be found by checking out its datasheet [[http://www.microchip.com/wwwproducts/en/MRF24WG0MA|here]]. 
 +
 +Some fundamentals on how to use the %%Pmod WiFi%% with Digilent's Network IP Stack can be found [[pmod:pmodwifi:start#additional_resources|here]]. Example code demonstrating how to get information from the %%Pmod WiFi%% can be found [[pmod:pmodwifi:start#example_projects|here]]. 
 +
 +If you have any questions or comments about the %%Pmod WiFi%%, feel free to post them under the appropriate section ("Add-on Boards") of the [[https://forum.digilent.com/|Digilent Forum]].