AWR2944EVM: How to write specified address of Flash with QSPI?

紫圣王

Part Number: AWR2944EVM
Other Parts Discussed in Thread: AWR2944, UNIFLASH, SYSCONFIG

Tool/software:

Hi Designer,

I want to achieve online update in AWR2944, so there is a need to receive appimage fragment and write to specified address where parseMutiCoreAppimage() uses. I want to know if it will work that I use writeConfigMode() function with memory-map address as its parameter used in parseMutiCoreAppimage() function?

over 1 year ago

0 Ajay Narayan over 1 year ago

TI__Mastermind 22715 points

Hi,

You can just do a memcpy to the QSPI memory-mapped address starting at 0xC6000000 and this will do the write in the background.

Note: For this to work, the QSPI IP has to be configured, which would be being done as part of Driver Open.

Regards,

Ajay

0 紫圣王 over 1 year ago in reply to Ajay Narayan

Prodigy 200 points

Hi Ajay,

it needn't call AddrTranslateP_getLocalAddr(0xC6000000)?

Regards,

Zisheng Wang

0 Ajay Narayan over 1 year ago in reply to 紫圣王

TI__Mastermind 22715 points

Hi Zisheng,

For this IP the translated address is also same. So, you can use the 0xC6000000 address directly as well.

There is no harm in using AddrTranslateP_getLocalAddr(0xC6000000) as well.

Regards,

Ajay

0 紫圣王 over 1 year ago in reply to Ajay Narayan

Prodigy 200 points

Hi Ajay,

Needn't plus appImageOffset(0x000A0000) either when using memcpy()?

Regards,

Zisheng Wang

0 Ajay Narayan over 1 year ago in reply to 紫圣王

TI__Mastermind 22715 points

Hi Zisheng Wang,

If you want to access 0x0 address in flash, then it is mapped to 0xC6000000.

If you want to access 0x000A0000 address in flash, then it is mapped to 0xC60A0000.

Regards,

Ajay

0 紫圣王 over 1 year ago in reply to Ajay Narayan

Prodigy 200 points

Hi Ajay,

I want to achieve online update, but I encounter a problem confusing.

I use a python script to read new version of appimage in "rb" mode, and divide them into fragments with size of 496Bytes.

Then I send fragment to the board where I use Flash_write to the address of 0x000A0000.By the way, I don't erase flash, just overwrite it.

The problem is that there is only one condition that program sent to the board can work is that I send itself as new version to the board.

With a prompt printed by SBL, I find it suspicious that Boot Image Size doesn't equal with the size of new version.

Could you help me fix this confused problem?

Regards,

Zisheng Wang.

0 紫圣王 over 1 year ago in reply to Ajay Narayan

Prodigy 200 points

Hi Ajay,

In the opposite, if I use uniflash to write the new version of appimage to the address in the flash of 0x000A0000, it will work.

So, what's the different between unflash and my solution?

In the other words, How does uniflash write the new version to flash?

Regards,
Zisheng Wang

0 紫圣王 over 1 year ago in reply to Ajay Narayan

Prodigy 200 points

Hi Ajay,

Need I add BootLoader in MSS's sysconfig?

I have no idea to do.

Regards,

Zisheng Wang

0 Ajay Narayan over 1 year ago in reply to 紫圣王

TI__Mastermind 22715 points

Hi Zisheng Wang,

Sorry for the delay, I was out on vacation.

In order to update the contents of the flash, first you need to do an erase and then only do the write.

Regards,

Ajay

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AWR2944EVM: How to write specified address of Flash with QSPI?