SPRUJE4D August 2024 – June 2025 F29H850TU , F29H859TU-Q1
An optional resistor configuration is included on the F29H85x controlSOM to enable use of MCAN-A function the high-density connector J1. By default, J1.35/37 pins support the MCAN-D pin multiplex option. Through a resistor modification, the MCAN-A function can be brought on these J1 pins. This enables use of the MCAN-A boot feature. Refer to the F29H85x and F29P58x Real-Time Microcontrollers data sheet for more information on MCAN-A boot.
Figure 2-10 MCAN-A Boot Selection Resistor
Locations| Mode | J1.35/37 | J3.80/82 | Resistor Configuration |
|---|---|---|---|
| EtherCAT support (default) | GPIO67/68 (MCAN-D) | GPIO64/65 (EtherCAT) | Populate R25/R27 and R29/R54 with 0-ohm resistor, remove R26/R45. |
| MCAN-A support | GPIO64/65 (MCAN-A) | No connection. EtherCAT not supported |
Populate R26/R45 with 0-ohm resistor, remove R25/R27 and R29/R54. |