AM2634: Memory map mode configuration for QSPI interface

Rohal

Intellectual 435 points

Part Number: AM2634

Tool/software:

Dear Team,

I want to perform fast memory read/write operation, for that i want to use Memory map mode,

So kindly let me know how to use QSPI memory as Memory map mode?

10 months ago

+1 Aakash Kedia 10 months ago

TI__Mastermind 26025 points

Hi vikas chaudhary,

By default the Flash reads are done in memory map mode. You can use the Flash_Read APIs in the SDK.

Best Regards,
Aakash

0 Rohal 10 months ago in reply to Aakash Kedia

Intellectual 435 points

Dear AAkash,

What is expected time to read 1KB data at 100 Mhz clock speed in quad mode?

As pe my calculation it should be approx. 40usec,

Please confirm for the same

0 Aakash Kedia 10 months ago in reply to Rohal

TI__Mastermind 26025 points

Hi vikas chaudhary,

There are many variables in the same.

1. QSPI clock is only supported at 80MHz on AM2634 device.
2. What is the mode in which this is configured ? Is it 1s-1s-4s mode ?
3. What is the dummy cycles required by the flash for the same ?
4. Are you looking for a performance with DMA or without DMA ?

Best Regards,
Aakash

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AM2634: Memory map mode configuration for QSPI interface