topic Re: KW36 reading flash data caused HardFault_Handler in Wireless MCU

KW36 reading flash data caused HardFault_Handler

wjw2023 — Fri, 26 Apr 2024 08:09:23 GMT

Hi：

KW36 reading flash data caused HardFault_Handler!

1、different data is written to the same flash address twice consecutively。

uint8_t wdata[8] = {0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88};
NV_FlashProgram(0x00073778, 8, wdata);
wdata[0] = 0x00;
NV_FlashProgram(0x00073778, 8, wdata);

2、reading flash data caused HardFault_Handler。

uint8_t rdata[8] = {0};
memcpy(rdata, 0x00073778, 8);

3、The ecc verification error may occur because data is written to the same address twice;How does this error not trigger HardFault_Handler; can trigger FTFE_IRQHandler !

Re: KW36 reading flash data caused HardFault_Handler

Ricardo_Zamora — Sat, 27 Apr 2024 00:14:11 GMT

Hello,

Hope you are doing well. Could you please clarify what SDK version are you using?

Are you using an SDK example as a base? What modifications did you make?

Are you using a FRDM?

Why are you writing different data on the same address consecutively?

Regards,

Ricardo

Re: KW36 reading flash data caused HardFault_Handler

wjw2023 — Mon, 29 Apr 2024 02:51:09 GMT

sdk ver 2.25

Continuously write different data on the same address just to repeat the problem, the actual application does not know how to produce, the phenomenon is to read flash cause HardFault_Handler.

NV FlashProgram for write and memcpy for read.

Re: KW36 reading flash data caused HardFault_Handler

Ricardo_Zamora — Mon, 29 Apr 2024 20:21:13 GMT

Hello,

The recommended API's are located on <SDK_Path>\middleware\wireless\framework\Flash\Internal\. The main functions are:

NV_FlashEraseSector

NV_FlashProgram

NV_FlashRead (FLib_MemCpy)

Regards,

Ricardo

Re: KW36 reading flash data caused HardFault_Handler

wjw2023 — Tue, 30 Apr 2024 00:47:46 GMT

My requirement is very simple, is to read flash exception when do not trigger HardFault_Handler, can trigger FTFE_IRQHandler, how to configure?

Re: KW36 reading flash data caused HardFault_Handler

wjw2023 — Mon, 06 May 2024 09:23:40 GMT

Hello,

Hope to get your help！