Kinetis MicrocontrollersのトピックUsing QSPI in K81

Using QSPI in K81

alysonrosa — Fri, 23 Jun 2017 18:16:48 GMT

Hi,

I'm trying to use QSPI in K81 (TWR_K81F150M). And importing the example "qspi_polling_transfer", without modifying any code, it always fail, printing "The data is wrong".

Same occurs with example "qspi_edma_transfer".

Checking the memory monitor, in each write, the first 2 bytes is always "CCCC". For example, writing

uint32_t data[4] containing numbers 1, 2, 3, 4 in memory 0x6800 0000 will lead to:

memory addr - values

0x6800 0000 - CCCC0000 00010000 00020000

0x6800 000C - 00030000 00040000 00000000

where, I think, it should be:

0x6800 0000 - 00000001 00000002 00000003

0x6800 000C - 00000004 00000000 00000000

Any idea?

Thanks :smileygrin:!

Re: Using QSPI in K81

jorge_a_vazquez — Wed, 19 Jul 2017 00:45:51 GMT

Hi Alyson Rosa,

I have tested this code example in my side (using MCUXpresso IDE and SDK 2.2) and I couldn't see any problem in its functionality. The board doesn't require any special setting in its jumpers but just to discard, please verify this. Also, K81 doesn't have SDK downloable package, so are you using a K80 package?

Best Regards

Jorge Alcala

Re: Using QSPI in K81

alysonrosa — Wed, 19 Jul 2017 17:46:00 GMT

Hello Jorge,

Can you share the code? Or at least the LookUp Table (LUT) for this flash?

I'm using SDK from K82 package.

Re: Using QSPI in K81

jorge_a_vazquez — Fri, 18 Aug 2017 16:32:19 GMT

Hi Alyson Rosa

Sorry for the late reply, I am using the same code example and SDK package as you, qspi_edma_transfer and K82 SDK 2.2.

Regards

Jorge Alcala