S32KのトピックRe: S32K344 SPI Transmit Buffer issue

S32K344 SPI Transmit Buffer issue

kual_gettobyte — Tue, 01 Apr 2025 17:02:40 GMT

I am trying to send about 7200 bytes of data over SPI in S32K344 MCU.

But after transmitting about 91 bytes( you can see expression view) of data getting hardfault!!

what can be reason?? i am using Lpspi_Ip_SyncTransmit() API for doing so.

Re: S32K344 SPI Transmit Buffer issue

danielmartynek — Wed, 02 Apr 2025 07:29:31 GMT

Hello @kual_gettobyte,

Please find more information about the fault exception, is it a MemManage fault or a BusFault?

https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K312-HARDFAULT-Handling-Interrupt-DS3-5-RTD300/ta-p/1806259
https://community.nxp.com/t5/S32K-Knowledge-Base/How-To-Debug-A-Fault-Exception-On-ARM-Cortex-M-V7M-MCU-S32K3XX/ta-p/1595570
https://community.nxp.com/t5/S32K-Knowledge-Base/Fault-handling-on-S32K14x/ta-p/1114447

Is the system clock set precisely to one of the clock options, e.g. Table 151. Option A - High Performance mode (CORE_CLK @ 160 MHz).

Regards,

Daniel

Re: S32K344 SPI Transmit Buffer issue

kual_gettobyte — Thu, 03 Apr 2025 15:54:56 GMT

Well i figured the issue. It was on some linker script issue