topic Re: About i.MX 7Dual Enhanced LCD Interface (eLCDIF) in i.MX Processors

About i.MX 7Dual Enhanced LCD Interface (eLCDIF)

goto11 — Tue, 06 Aug 2019 09:29:06 GMT

Hello,community

About connecting to peripheral devices with MPU interface (8080, 8 bits)
Timing charts are shown in Figures 13-13 and 13-14 of the i.MX 7 Dual Applications Processor Reference Manual.
TDSR and TDHR may be set with the LCDIF_TIMING register.
However, we were unable to find a description of standard values such as setup / hold time during READ and data confirmation time during WRITE.
If it is described in a parameter somewhere in the data sheet, can you tell me where it is specifically described?
There are W1 to W3 in the figure. Where is this time listed?

Best Regards,
Goto

Re: About i.MX 7Dual Enhanced LCD Interface (eLCDIF)

weidong_sun — Wed, 07 Aug 2019 07:00:25 GMT

Hi,

We provide a patch of MPU LCD for i.MX7D, see the link, please!

https://community.nxp.com/docs/DOC-339864

Have a nice day!

BR,

Weidong

Re: About i.MX 7Dual Enhanced LCD Interface (eLCDIF)

goto11 — Wed, 07 Aug 2019 08:30:19 GMT

Hi,

About connecting to peripheral devices with MPU interface (8080, 8 bits)
I want to know the standard values of electrical characteristics for the following.
Are there any documents listed?

Timing charts are shown in Figures 13-13 and 13-14 of the i.MX 7 Dual Application Processor Reference Manual.
TDSR and TDHR can be set using the LCDIF_TIMING register.
However, we could not find an explanation of the standard values such as setup / hold time during reading and data confirmation time during writing.
If it is described in any parameter in the data sheet, please tell me where it is specifically described.
There are W1 to W3 in the figure. Where is it written this time?

Best Regards,
Goto

Re: About i.MX 7Dual Enhanced LCD Interface (eLCDIF)

weidong_sun — Wed, 07 Aug 2019 09:25:41 GMT

Hi,

some parameters should be obtained from LCD's datasheet.

BR,

Weidong