# GPIO

**URL:** <https://forums.developer.nvidia.com/t/gpio/78916>\
**Category:** Jetson Nano\
**Created:** [July 29, 2019, 10:33am UTC](https://forums.developer.nvidia.com/t/gpio/78916 "2019-07-29T10:33:02Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![noratxintxurreta](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@noratxintxurreta](https://forums.developer.nvidia.com/u/noratxintxurreta)\
**Post date:** [July 29, 2019, 10:33am UTC](https://forums.developer.nvidia.com/t/gpio/78916/1 "2019-07-29T10:33:02Z")

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Hello,

I am designing the carrier board for the Jetson Nano but I have some trouble knowing wich are the GPIOs 16 and GPIO 18.  
I have seen that in the Jetson Nano Developer Kit, the 16th pin´s name is SPI\_2\_CS1 and the 18th pin´s SPI\_2\_CS0. Can someone, please, tell me wich are the equivalents of those in the Jetson Nano?  
I can not find those in the Developr kit´s schematics.

Thank you.

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**Author:** ![Trumany](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/trumany/32/14043_2.png) [@Trumany](https://forums.developer.nvidia.com/u/Trumany)\
**Post date:** [July 30, 2019, 3:11am UTC](https://forums.developer.nvidia.com/t/gpio/78916/2 "2019-07-30T03:11:53Z")

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Hi, can you share in which doc you see the GPIO 16 and 18? They are not in pinmux and SCH.

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**Author:** ![noratxintxurreta](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@noratxintxurreta](https://forums.developer.nvidia.com/u/noratxintxurreta)\
**Post date:** [July 30, 2019, 7:51am UTC](https://forums.developer.nvidia.com/t/gpio/78916/3 "2019-07-30T07:51:29Z")

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Hi,  
I am now using the 16th and 18th pins of the J41 connector in the Jetson Nano Developer Kit to connect a camera. Those pins signals are named SPI\_2\_CS1 and SPI\_2\_CS0 respectively.

But now I can not find these names in any of the carrier board´s schema.

I am sorry if I am not clear enough, I do not how to attach an image.  
Thank you.

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**Author:** ![Trumany](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/trumany/32/14043_2.png) [@Trumany](https://forums.developer.nvidia.com/u/Trumany)\
**Post date:** [August 8, 2019, 8:34am UTC](https://forums.developer.nvidia.com/t/gpio/78916/4 "2019-08-08T08:34:08Z")

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That are SPI1\_CS1\_LS and SPI1\_CS0\_LS in current schematic(B01), you can check OEM DG in DLC for more info.

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**Author:** ![noratxintxurreta](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@noratxintxurreta](https://forums.developer.nvidia.com/u/noratxintxurreta)\
**Post date:** [August 9, 2019, 7:59am UTC](https://forums.developer.nvidia.com/t/gpio/78916/5 "2019-08-09T07:59:25Z")

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Thank you:)

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**Author:** ![nadeemm](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/nadeemm/32/367020_2.png) [@nadeemm](https://forums.developer.nvidia.com/u/nadeemm)\
**Post date:** [October 18, 2021, 5:44pm UTC](https://forums.developer.nvidia.com/t/gpio/78916/6 "2021-10-18T17:44:57Z")

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