topic Re: Reading the DEFLASH on K40. in Kinetis Microcontrollers

Reading the DEFLASH on K40.

srinivasanganji — Mon, 15 Jul 2013 06:45:27 GMT

I am using a K40 Kinetis chip. I am trying to read from the DEFLASH. I am using the READ8 macro supplied by Freescale after I do a FlashInit(...).

I get a hard fault exception.

Re: Reading the DEFLASH on K40.

Kan_Li — Mon, 15 Jul 2013 08:47:30 GMT

Hi,

Would you please provide information about the part number of the K40 device? if you could give a code snippet regarding READ8 issue, that would be better.

Thanks for your patience!!

B.R

Kan

Re: Reading the DEFLASH on K40.

srinivasanganji — Mon, 15 Jul 2013 10:25:39 GMT

Thanks Kan. The part # is: PK40X256VLQ100. The READ8 macro is defined in the Freescale file

SSD_FTFx_Common.h as:

#define READ8(address)

((UINT8)(*(VUINT8*)(address)))

I do a FlashInit(... ) which returns no error. After that I try to read the D-Flash at the base (

#define FLASH_BLOCK1_BASE

0x10000000

// Data flash - NVM

Re: Reading the DEFLASH on K40.

srinivasanganji — Mon, 15 Jul 2013 10:29:37 GMT

FYI

Regards

Srinivasan Ganjigunte

Cascademic Solutions pvt. ltd.

Re: Reading the DEFLASH on K40.

Kan_Li — Tue, 16 Jul 2013 07:16:35 GMT

Thanks for the information!! I have implemented your code on my TWR-K40X256 which has a PK40X256VMD100 mounted. The code runs well on my side, so I think maybe your issue is a code issue, please try the attached project and kindly let me know if the problem is still there.

Hope that helps,

B.R

Kan

Re: Reading the DEFLASH on K40.

Monica — Wed, 24 Jul 2013 23:57:27 GMT

Hello Srinivasan,

how's the project going? Any breakthroughs?

Please keep us posted :smileywink:

Best regards,

Monica.

Re: Reading the DEFLASH on K40.

srinivasanganji — Thu, 25 Jul 2013 06:48:09 GMT

Well it's going on fine. I am able to read and write to the DEFLASH.

Thank You.

Regards

GRS

(G.R.Srinivasan

Cascademic Solutions Ltd.)

Re: Reading the DEFLASH on K40.

Monica — Thu, 25 Jul 2013 19:44:07 GMT

Great!