When I test nxp-ls1028ardb board, the I did not get the pins of flexCan for tx, rx and ground in docs of nxp-ls1028 including user maunal, reference manual etc.
Would you please give the pin info about flexcan on nxp-ls1028 of schematic of nxp-ls1028?
CAN signals are multiplexed with other functions - refer to the QorIQ LS1028A/LS1018A Data Sheet, Table 1. Pinout list by bus:
The multiplexing is controlled by the RCW fields - refer to the QorIQ LS1028A Reference Manual, 18.104.22.168 Reset Control Word (RCW) Register Descriptions: