SN65DSI85: SN65DSI84 driver to control SN65DSI85

Sam Ting

Part Number: SN65DSI85
Other Parts Discussed in Thread: SN65DSI84,

Hi team,

Could you please comment what adjustments are needed for the BSP to use SN65DSI84 driver to control SN65DSI85? Thanks!

Best regards,
Sam Ting

over 3 years ago

0 Ikechukwu Anyiam over 3 years ago

TI__Mastermind 35130 points

You only need to make a change if you're changing the operating mode of the device.

Regards,

I.K.

0 Sam Ting over 3 years ago in reply to Ikechukwu Anyiam

TI__Intellectual 2710 points

Hi I.K.

Thanks for your quick response!

Could you please explain more about the operating mode? We have less experience on the application. Thanks!

Best regards,

Sam Ting

0 Ikechukwu Anyiam over 3 years ago in reply to Sam Ting

TI__Mastermind 35130 points

Hi Sam,

Are you planning on using the SN65DSI85 in the exact same way as the SN65DSI84? Why are you replacing the DSI84?

Regards,

I.K.

0 Sam Ting over 3 years ago in reply to Ikechukwu Anyiam

TI__Intellectual 2710 points

Hi I.K.

My customer didn’t use SN65DSI84 before and SN65DSI85 is the first time used in the projects. Engineers found SN65DSI84 driver of NXP imx8mq from internet, but they can't find SN65DSI85 driver. So they're trying to use SN65DSI84 driver to control SN65DSI85.

Best regards,
Sam Ting

0 Ikechukwu Anyiam over 3 years ago in reply to Sam Ting

TI__Mastermind 35130 points

Hi Sam,

They shouldn't just use a driver they found without checking it. Both the SN65DSI84 and SN65DSI85 registers have to be configured according to the system they're in.

Please reference these videos:

https://training.ti.com/configuring-sn65dsi8x-single-channel-dsi-single-link-lvds-operation

https://training.ti.com/configuring-sn65dsi8x-single-channel-dsi-dual-link-lvds-operation

https://training.ti.com/configuring-sn65dsi85-dual-channel-dsi-dual-link-lvds-operation

Regards,

I.K.

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SN65DSI85: SN65DSI84 driver to control SN65DSI85