QSPI data read delay Topic is solved

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steved
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QSPI data read delay  Topic is solved

Postby steved » Mon Feb 19, 2018 2:17 pm

At present there's no way to control the bit which delays data sampling for half a clock in non-DDR mode - QUADSPI_CR_SSHIFT

Not certain whether it is set and forget, or whether it may need changing dependent on mode.

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Giovanni
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Re: QSPI data read delay

Postby Giovanni » Tue Feb 20, 2018 10:52 am

Hi,

The QSPI driver probably needs an overhaul. Another limitation is that it is missing support for OSPI (octal) ports. Probably it should be renamed too (PSPI? MSPI?)

Changes to the flash driver should follow this.

Giovanni

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Re: QSPI data read delay

Postby Giovanni » Sat Jun 02, 2018 2:20 pm

Hi,

I added the high level files for a new WSPI (wide) driver, it is much similar to QSPI but allows handling of an higher number of lines. This change should go in the LLD for the new driver (in queue).

Flash drivers and MFS will be ported to WSPI afterward.

Giovanni


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