Hi out there,
in an old design we are using NXP BlueStreak LH75401 System-on -Chip as Controller in our grafical display .
We have seen problems with the CAN-Interface in some of our products, we can not explain (CAN-packets were destroyed by the controller without any reason).
We have seen different CPUTAPIDs in the controllers:
0x00754061: This is the value a chip A with the marking LH75401-NOQ, 100 CO, 1441 KOREA, D88SJ.1, This is the value stated in the user manual.
0x3f1f0f0f: This is the value of chip B with the marking LH75401-NOQ, 100 CO, 1351 KOREA, D7JMY.1.
Both Chips seem to work the same except of the CAN-Interface. We expect a change in the can-controller of the chip.
Does anybody know about the history of the chip and can point us the datasheets/usermanuals/erratas of the different versions?
Thanks for your help