Tool/software:
Hi experts,
When there is a lot of traffic on CAN, ESM 1.52 is sometimes set (ESM SR4: 0x00100000).
The description of ESM 1.52 is quite vague: "CPU Interconnect Subsystem - Global error".
We tried to narrow it down by reading the SDC MMR registers (SDC + offset:) (note that bits must be shifted left by 24 according to errata DEVICE#51):
SDC 00: 0x10000000
SDC 04: 0x00000000
SDC 08: 0x10000000
SDC 0C: 0x0000000000
SDC 10: 0x1000000000
SDC 14: 0x1000000000
SDC 18: 0x0000000000
SDC 1C: 0x0000000000
Another time we got :
SDC 00: 0x1000000000
SDC 04: 0x0000000000
SDC 08: 0x0000000000
SDC 0C: 0x0000000000
SDC 10: 0x1000000000
SDC 14: 0x0000000000
SDC 18: 0x0000000000
SDC 1C: 0x0000000000
So the reported errors change sometimes, but the busmaster responsible is always the CPU.
We are at a loss as to what this means and what could trigger such a response.
1. Could you describe what would cause these errors and how we could debug it?
2. As this is an ESM1 error, one option is to ignore this particular error. What errors could we miss by ignoring this and what could be the consequences of these errors?
Thank you and best regards,
Max
