S32KのトピックRe: How can I FIRC clock enable(REQ52)?

How can I FIRC clock enable(REQ52)?

malove — Wed, 23 Oct 2024 05:20:25 GMT

Hello,

I have a question regarding the configuration of the MC_ME module to select the FIRC clock for FlexCAN in S32K314.

studyseok8466_1-1729660771739.png

[Figure1]

As shown in [Figure1], it is mentioned that the status of the FIRC can be checked through BLOCK52 in MC_ME1.

studyseok8466_2-1729660787203.png

[Figure2]

In [Figure2], it is shown that the clock for Block52 can be configured.

studyseok8466_3-1729660801322.png

[Figure3]

However, when I checked the S32K314.h file [Figure3], I couldn't find the bit named REQ52. How can I configure this setting?

Re: How can I FIRC clock enable(REQ52)?

VaneB — Tue, 29 Oct 2024 17:28:58 GMT

Hi @malove

I recommend using RTDs, the software package includes the device header, which have a macros defined that can be used to enable the clocks.

BR, VaneB

Re: How can I FIRC clock enable(REQ52)?

malove — Sun, 27 Oct 2024 23:23:05 GMT

Is there any way to access it without using RTD?

Re: How can I FIRC clock enable(REQ52)?

VaneB — Mon, 28 Oct 2024 22:40:49 GMT

Hi @malove

I have compared different versions of development packages and it seems that the headers may vary depending on the version of the development package, could you help me with the information of the version you are using?

Re: How can I FIRC clock enable(REQ52)?

malove — Mon, 28 Oct 2024 22:46:48 GMT

I'm using S32DS 3.5 and PlatformSDK_S32K3, S32K3XX AUTOSAR 4.4 - R21 - 11 RTD 3.0.0 D2303

Do you need more information?

Re: How can I FIRC clock enable(REQ52)?

VaneB — Tue, 29 Oct 2024 17:57:34 GMT

Hi @malove

FIRC is enabled by default and we understand that the Table 260 (MC_ME partition peripheral mapping and clock control) of the RM may lead to the conclusion that FIRC can be enabled like the other clocks (MC_ME->PRTN1_COFB1_CLKEN), but it was found that configure FIRC causes hard fault in run mode with debugger disconnected. Therefore the register was set to reserved.

Re: How can I FIRC clock enable(REQ52)?

malove — Wed, 30 Oct 2024 07:27:38 GMT

thank you!