SPRAD59 October 2023 TMS320F280039
Although the conceptual procedure for transmission is largely identical for DCAN and MCAN, Table 7-1 captures the key differences between both modules:
Category | DCAN | MCAN |
---|---|---|
Transmit Priority | Numerically lowest Message Object (that is ready for transmission) is transmitted first | Buffer containing numerically lowest Message ID (among those ready for transmission) is transmitted first |
Buffer Type | Only Transmit Message Object | Transmit Buffers can be configured as Dedicated Tx Buffers, Tx FIFO or Tx Queue |
Writing/Updating Transmit Message | Requires Writes to IFx registers | Transmit Message can be updated by writing directly to Message RAM using Driverlib APIs |