HSPI Flash possible?

i4vine
Posts: 1
Joined: Thu Jan 07, 2016 4:49 pm

HSPI Flash possible?

Postby i4vine » Thu Jan 07, 2016 6:25 pm

Hello!

I would like to pump a lot of data into ESP8266 so I want to use SDIO for high speed connection from a host microcontroller.
But the problem is primary SDIO/SPI pins already been used by flash chip (BTW, my test board is ESP-12-E).

Is it possible to switch a flash to HSPI (the second SPI as far as I know) so I can download and run my firmware?
Or is there any other way that my code can program SDIO without conflict?

I couldn't find any doc and sample code regarding this around here.
Any help would be greatly appreciated.

Regards,
Sean

Espressif_Kelly
Posts: 140
Joined: Mon Oct 27, 2014 10:40 am

Re: HSPI Flash possible?

Postby Espressif_Kelly » Wed Feb 03, 2016 11:12 am

Dear i4vine,

ESP8266EX can support to work as SDIO/SPI slave and then external SPI flash should be moved to HSPI interface.
You can refer to "8H-ESP8266__Interface_SDIO_SPI_Mode" for details.
http://bbs.espressif.com/viewtopic.php?f=51&t=819
BTW, current Non os SDK_V1.5.2 has already supported this funtion.
Any more questions, please feel free to let us know.
Thanks.

User avatar
raspberrypidmx
Posts: 15
Joined: Wed Apr 27, 2016 6:15 am
Contact:

Re: HSPI Flash possible?

Postby raspberrypidmx » Tue May 03, 2016 10:27 pm

Hi Kelly,

Where can we download the STM32 source code which is mentioned in http://espressif.com/sites/default/file ... .1-2_0.pdf ?

Do you also have a detailed description how to upload user code using SDIO?

Thanks, Arjan

Espressif_Kelly
Posts: 140
Joined: Mon Oct 27, 2014 10:40 am

Re: HSPI Flash possible?

Postby Espressif_Kelly » Wed May 04, 2016 6:00 pm

Hi,

You can get sdio_slv.c in our SDK which can be obtained in the below links.

viewtopic.php?f=46&t=850

More questions, please feel free to let us know.

Thanks.

Who is online

Users browsing this forum: No registered users and 1 guest