AWR1642: Initialize QSPI FLASH driver, and then system fails.

Kris Lin

Intellectual 810 points

Part Number: AWR1642

Hi,

I added the QSPI FLASH driver to the mmWaveSDK 1.1.0.2 version, and built the mmWave binary successfully.

(Referece the code: driver\qspiflash\test\common\test_common.c and driver\qspiflash\test\xwr16xx\main.c)

After powering up the system, the system seems to be halted.

I check the QSPI FLASH initial code.

the DMA open function seems to initialize fail, as follows:

------------------------------

...

/* Open DMA driver instance 0 for SPI test */
gDmaHandle = DMA_open(0, &dmaParams, &retVal);

...

------------------------------

How to solve the DMA_open fails?

Thanks

over 6 years ago

0 Cesar over 6 years ago

TI__Guru*** 138719 points

Hi,

Please try to add further debug printfs() to better understand why the code hangs

thank you
Cesar

0 Cesar over 6 years ago in reply to Cesar

TI__Guru*** 138719 points

Hi,

Can you also please let us know what application you are working on?

This will help us understand your system better

thank you
Cesar

0 Kris Lin over 6 years ago in reply to Cesar

Intellectual 810 points

Hi Cesar,

I use mmWave demo config in SDK v1.1.0.2.

And qspiflash initial API to MmwDemo_mssInitTask() function in the "\demo\xwr16xx\mmw\mss\mss_main.c" file.

When I added the driver and power up DUT, the mmWave demo can not print the message as follows:

---------------------------------

/* Create Demo Banner to be printed out by CLI */
    sprintf(&demoBanner[0],
                       "******************************************\n" \
                       "xWR16xx MMW Demo %02d.%02d.%02d.%02d\n" \
                       "******************************************\n",
                        MMWAVE_SDK_VERSION_MAJOR,
                        MMWAVE_SDK_VERSION_MINOR,
                        MMWAVE_SDK_VERSION_BUGFIX,
                        MMWAVE_SDK_VERSION_BUILD
            );

------------------------------

But I removed the DMA_open() API, the message ""xWR16xx MMW Demo %02d.%02d.%02d.%02d" are prinnted on the console window.

BTW, I want to write/read the customized data to the flash.

Thanks.

0 db_woodall over 6 years ago in reply to Kris Lin

TI__Mastermind 21025 points

There is a white paper that illustrates how to add QSPI Flash capability to a project. You can find it here:

http://www.ti.com/lit/an/swra583/swra583.pdf

One possible cause of the failure is that your new calls are in main(), where they should be placed in a task.

-dave

0 Kris Lin over 6 years ago in reply to db_woodall

Intellectual 810 points

Hi,

So far, the device can use single write/read command to qspiflash.
Also, the device can write/read data in memory mapped mode to qspiflash.

------------------------
The question is the device can not use DMA mode write/read data in Memory mapped mode.
When I use "gDmaHandle = DMA_open(0, &dmaParams, &retVal);", the code would hangs.

Are there any other related configures to do?

Thanks.

0 Kris Lin over 6 years ago in reply to Kris Lin

Intellectual 810 points

Hi,

There is a related question about Memory_alloc() API.
I use the "readDataArray = Memory_alloc (NULL, TEST_DATA_LENGTH, 64, NULL);" in the driver\qspiflash\test\common\test_common.c file, the code also hangs.

And there is also the Memory_alloc() code in the DMA_open(0, &dmaParams, &retVal) API.

If this is the issue, how could I do to resolve it?

Thanks.

0 Kris Lin over 6 years ago in reply to Kris Lin

Intellectual 810 points

Hi,

After modifing the heapMemParams.size, the "DMA mode write/read data in Memory mapped mode" is worked.

Thanks.

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AWR1642: Initialize QSPI FLASH driver, and then system fails.