How to enable function SGPIO to meet SFF-8485 Specification SFF-8485 REV0.7

[carter_wang]

Hi,

We use chip LPC5526JBD64E to get the status of hard drives from the host via SGPIO.

I was wondering whether the chip supports the SGPIO function?
If the answer is yes, how to enable it?

BR,

carter

[ZhangJennie]

Hi Carter

Please read this application note. this is 

https://www.nxp.com.cn/docs/en/application-note/AN12326.pdf

but we don't have qualification of SFF-8485 Specification. 

Have a nice day,

Jun Zhang

[carter_wang]

Hi Jun,

Thanks for your information.

However, I am looking forward to Serial General Purpose Input Output(SGPIO), not secure gpio.

BR,

carter

[ZhangJennie]

Hi Cater.

No. LPC55 doesn't support Serial General Purpose Input Output(SGPIO).

our LPC43xx supports Serial GPIO, but LPC55 doesn't.

Hope this helps,

Jun Zhang

[carter_wang]

Hi Jun,

Got it.

I was wondering if you could share the source code of SGPIO with us?

BR,

carter

[ZhangJennie · Accepted solution]

Hi Cater

Here are some  application notes on how to use SGPIO on LPC4300. If source codes exist, they are included in the zip files:

SGPIO on the LPC4300:
https://www.nxp.com/docs/en/application-note/AN11275.zip

Using SGPIO to emulate an SPI master interface:
https://www.nxp.com/docs/en/application-note/AN11210.zip

LPC4300 camera interface design using SGPIO:
https://www.nxp.com/docs/en/application-note/AN11196.zip

SGPIO camera module design using LPC4300:
https://www.nxp.com/docs/en/application-note/AN11343.zip

Implementing a UART using SGPIO on LPC4300:
https://www.nxp.com/docs/en/application-note/AN11351.zip

Hope this helps.

Jun Zhang

[carter_wang]

Hi Jun,

I tried to simulate SGPIO slave device via sensing gpio signals by software.

However, it seems impossible.

Am I right?

BR,

carter

[carter_wang]

Hi Jun,

Thanks for your information.

Have a good day~

BR,

carter