Changes between Version 15 and Version 16 of canbus

Timestamp:

03/05/2024 06:13:01 PM (2 months ago)

Author:

Ryan Erbstoesser

Comment:

add notes for 702x SOM

canbus

@@ -59 +59 @@
 The following Gateworks products have CAN:
 ||= Family =||= Board =||= Device =||= Driver =||= STBY =||= Termination =||= Notes =||
-||Venice || GW71/2/3xx || Use external Mini-PCIe || || N/A || N/A || ^^^3^^^ ||
+||Venice || GW71xx || Use external Mini-PCIe || || N/A || N/A || ^^^3^^^ ||
+||          || GW72xx/GW73xx || Use external Mini-PCIe or must use GW702x SOM i.MX8M Plus ||  || N/A ||  || ^^^5^^^ ||
 ||          || GW74xx || IMX8 / [http://dev.gateworks.com/datasheets/MCP25625.pdf MCP25625] || flexcan || N/A || R179 120ohms ||  ||
 || ||
@@ -75 +76 @@
  3. A Mini-PCIe expansion card may be used. See the [#minipcie Mini-PCIe] section at the end of this wiki page.
  4. On newer kernels this is configured via device-tree and thus manual gpio manipulation (described below) is not necessary
+ 5. The GW702x SOM with the i.MX8M Plus SoC supports CAN. This signalling is brought out to the MIPI Expansion header. Note, a transceiver is not included and would require an expansion board on the header. 
+  * GW72xx header is J4, GW73xx header is J17
+  * CAN1_TXD pin 15
+  * CAN1_RXD pin 17
+  * CAN2_TXD pin 21
+  * CAN2_TXD pin 23
 
 Note the Termination resistor options in the table above and remember that a properly terminated CAN network will have 120ohm termination across CAN_L and CAN_H at each end of the bus for a total measured resistance of 60ohm.
@@ -246 +253 @@
 = External CAN Mini-PCIe Cards
 Some examples, which have not been verified on Gateworks SBCs, so proceed at your own risk:
+ * [https://www.digikey.com/en/products/detail/versalogic-corporation/VL-MPEU-C1E/11310731 VersaLogic VL-MPEU-C1E]
  * [https://www.onlogic.com/emuc-b201/]
  * [https://phytools.com/products/pcan-minipcie-card-iso-1ch-2ch]