AM2612: API OSPI _readCmd issue

Shengzhe Hong

Part Number: AM2612

Tool/software:

Hi experts,

I am currently working on the am2612-lp board and connecting to an external nor flash(GD25LQ64E) via the ospi1 interface on the board to do some flash functional tests.

I found that only the first 8 bytes of data are correct when using the OSPI_readCmd function. Further, I found that when using the OSPI_writeCmd function, again only the first 8 bytes are sent correctly.

I'm wondering if I can only transfer a maximum of 8 bytes of data when using these two functions? Is this a limitation of your design or a bug?

6 months ago

0 Rijohn Pius 6 months ago

TI__Expert 3380 points

Hi Shengzhe,

Please allow me to get back on this by Tuesday. It is a holiday in India for Holi and SW expert is OOO. I need to get confirmation on "Support of Giga device" from SDK team.

Currently the support is there for Macronix / ISSI OSPI flashes.

Thanks & Regards,
Rijohn

0 Shengzhe Hong 6 months ago in reply to Rijohn Pius

Prodigy 20 points

Hi Rijohn,

Thanks for your reply.

I understood. Please enjoy your holiday first!

0 Shengzhe Hong 6 months ago in reply to Rijohn Pius

Prodigy 20 points

Hi Rijohn,

I have read Technical Reference Manual, and it solved my questions.

0 Rijohn Pius 6 months ago in reply to Shengzhe Hong

TI__Expert 3380 points

Hi Shengzhe,

Glad to hear that!!

Can you please let us know what changes were done in SDK?

Thanks & Regards,
Rijohn

0 Shengzhe Hong 6 months ago in reply to Rijohn Pius

Prodigy 20 points

Hi Rijohn,

What I noticed is that both OSPI_readCmd and OSPI_writeCmd can transfer up to 8 bytes data once. So I used other api such as OSPI_readDirect and OSPI_writeDirect to transfer more data info.

So basically, there's nothing changed in SDK.

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AM2612: API OSPI _readCmd issue