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SPI Clock Error and affect CAN module

master_007
Associate

Hi

 

I am developing my project using the SPC58EC74 chip,I found two problems when using SPI(The clock I/O is PG[11]/DSPI0_SCK, which is pin 34)。first question:When the amount of my code is relatively small, the clock signal is normal; when the amount of my code is relatively large, the clock signal is abnormal, see the next picture企业微信截图_17419580905310.png

That's right, sheer amount of code, the extra code will not be executed (my app launches from Flash),Below is my executable file information,This is problematic

企业微信截图_17419587014929.png

I swear the extra code is not being executed, it's just taking up space。

Second question:I don't know what is the relationship between SPI and CAN, when I CAN work properly, CAN can not work properly; When the SPI is disabled or the SPI is abnormal (for example, the clock is abnormal), CAN works properly。this is my question,Thank you for your answer. Thank you very much。

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