Hi all,
I recently switched from the S32K312 to the S32K311 Unified Bootloader, but I am encountering an issue where some of the driver registers are no longer accessible. Specifically, I am using CAN communication, and certain registers (SFRs) seem to be unreachable. I’ve attached an image to illustrate the issue.
Could anyone provide insights into potential causes or solutions for this problem? Any advice on configuration differences between the S32K312 and S32K311 that could be affecting register (SFRs) access would be greatly appreciated.
Thank you in advance!
Best regards.
Hi
The S32K3XXRM mentions:
The peripherals working on the system clock should be clock-gated used the MC_ME.PRTNx_COFBy_CLKEN configurations.
According to Table 260. MC_ME partition peripheral mapping and clock control, please check the value of FlexCAN 0: PRTN1_COFB2_CLKEN[REQ65]
If this bit was 0, Please check whether the FlexCAN 0 clock gate is enabled in the S32 Configuration Tool.
![FlexCAN0 clock gate PRTN1_COFB2_CLKEN[REQ65].png](https://community.nxp.com/t5/image/serverpage/image-id/333981iEC5BF6BA05938B9F/image-size/large?v=v2&px=999 "FlexCAN0 clock gate PRTN1_COFB2_CLKEN[REQ65].png")
Also, does your program call the Clock_Ip_Init function?
Best Regards,
Robin
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