Dbkom
Module -- Dbkom
3 Known Issues / Limitations With Configuration 3
References
DBKOM Technical Reference v2.08.00 (TechnicalReference_DBKOM_2_xx.pdf)
TMS570LS Series Microcontroller Technical Reference Manual (TMS570 Tech Ref_spnu489.pdf)
Configuration Settings
Il_Dbkom Configuration
| Attribute Name | Value | Rationale |
|---|---|---|
| Configurable Options | ||
| User Config File | None | Default setting |
| Write access to rx buffer | ||
| Byte | No | Default setting |
| Word | No | Default setting |
| nByte | No | Default setting |
| Timing parameters | ||
| Start Delay Time Area [ms] | 200 | Default setting |
| Channel0 | ||
| TxCycle | 2 | 2ms is a common factor of the transmission rates 10ms and 100ms and also ensures that the message trigger jitter is less than the required +/- 5ms. |
| RxCycle | 10 | Default setting |
| Transceiver Settings | ||
| Transceiver Config File | None | Default setting |
Tx Messages
D_RS_EPS
| Attribute Name | Value | Rationale |
|---|---|---|
| D_RS_EPS | ||
| Generate | Yes | Default setting |
| Start delay time [ms] | n/a | |
| ECU_APPL_EPS | ||
| Generate | Yes | Default setting |
| Start delay time [ms] | n/a | |
| EPS_1 | ||
| Generate | Yes | Required tx message |
| Start delay time [ms] | 0 | Arbitrarily set to 0, however, the time between this 10ms cyclic message and the EPS_A1 100ms cyclic message must be greater than 2 ms. |
| EPS_A1 | ||
| Generate | Yes | Required tx message |
| Start delay time [ms] | 4 | 5ms offset is the optimal spacing for offsetting this message from EPS_1. The current system tick is 2ms, so 4ms was selected. 4ms provides a guaranteed 2ms message spacing even under extreme jitter. |
| NM_EPS | ||
| Generate | Yes | Default setting |
| Start delay time [ms] | n/a | |
| SD_RS_EPS | ||
| Generate | Yes | Default setting |
| Start delay time [ms] | 0 | Default setting |
Known Issues / Limitations With Configuration
The configuration is only partially documented due to lack of time.
Revision Control Log
| Item # | Rev # | Change Description | Date | Author Initials |
|---|---|---|---|---|
| 1 | 1.0 | Initial Creation | 30JUL13 | JJW |