sl_FsWrite function, where to find and set speed

Yaroslav Mudritsky

Other Parts Discussed in Thread: CC3200

Hi,

I can't find in any file of CC3200 Api's of the function sl_FsWrite. I'm looking for what this function exactly do.

Also, I've found that 1MB RAM installed on CC3200 launchbox can reach 75Mhz operations speed. But I've tryed and found that I can't reach 1Mhz of serial speed and write 8 bit take me more than 10us.

Function that i've use to write is:

sl_FsWrite(filehandle, offset, &c, 1);

over 10 years ago

0 Glenn Vassallo over 10 years ago

Guru 21435 points

The CC3200 SDK has a reference to all the SimpleLink APIs, you can download that from here - www.ti.com/.../cc3200sdk

Cannot comment on your speed findings other than to say this is not set via any API I am aware of.

Glenn.

0 Shlomi Itzhak over 10 years ago in reply to Glenn Vassallo

TI__Guru 64455 points

Hi,

Regarding the speed, it really depends on the serial flash you use.

The SPI rate is not configurable and set to 20MHz.

The main time consuming operation during write operation is erasing the block on the serial flash and not the writing itself (this is why it depends on the serial flash used).

Please look at the serial flash datasheet and look for the SSE (Sub Sector Erase) parameter. Typical number can be around 70mSec for erasing a 4KB block. Writing a blobk is usually less than 1mSec.

Regards,

Shlomi

0 Shlomi Itzhak over 10 years ago in reply to Shlomi Itzhak

TI__Guru 64455 points

Hi,

Did the above post answer your query? please verify the answer.

Shlomi

0 Shlomi Itzhak over 10 years ago in reply to Shlomi Itzhak

TI__Guru 64455 points

Hi,

I am closing the thread, if issue still exist please open a new thread and add a link to this one for reference.

Shlomi

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sl_FsWrite function, where to find and set speed