Hi, Whether GPIO’s toggle speed can be modified or not? If can, what is the range? How to modify GPIO’s toggle speed? for example: GPIO12— PN.01 GPIO11— PQ.06 GPIO07— PG.06

[image] wangqunpj: when max-rate-maxn = result: 110khz when max-rate-maxn = , result: 165khz It seems you’ve gotten higher toggle speed. I’ve also checked with internal. It is the hw signal, and it could not be configured from kernel.

Hi wangqunpj, What do you mean about “toggle speed”? May I also know what’s your use case for this?

for examle GPIO from 0 to 1 GPIO from 1 to 0 Toggle speed is the time needed to GPIO works

The clock rate for GPIO could be configured with the following node. #cat /sys/kernel/debug/bpmp/debug/clk/axi_cbb/rate It seems been configured as the same as max_rate at 204MHz already.

for ORIN NX platform, using the below code: while(1) { SET_GPIO04(0); SET_GPIO04(1); } we can find the square wave result is below through the oscilloscope. when max-rate-maxn = result: 110khz when max-rate-maxn = , result: 165khz

This result is expected because the higher clock rate resulting in higher toggle speed.

How to become the higher toggle speed?

Hi, we hope to get higher toggle speed. it is important for us. please help us. you can discuss it with the system engineers or the hardware engineers of ORIN NX GPU.

[image] wangqunpj: we hope to get higher toggle speed How higher would it meet your requirement? [image] wangqunpj: while(1) { SET_GPIO04(0); SET_GPIO04(1); } From your current test, it seems running in the single thread and should be the maximum toggle speed it could achieve. If you need higher frequency for transmitting data to your peripheral device, we would suggest using these pins as serial instead of GPIO.

Hi, accrosing your advice, we use SPI0,but there is a question,please help us,thanks [image] Whether there is any special config to enable SPI? Jetson Orin NX Dear sir: We want to use spi@3210000’s spi@0 to transfer data, check the device tree and find spi already enabled. in /dev can not find any spi device, so use cmd install the spidev drviver sudo insmod /lib/modules/5.10.104-tegra/kernel/drivers/spi/spidev.ko use kernel-5.10/tools/spi/spidev_test to send data but can not find any wave from oscilloscope when send data, CLK pin can not find any wave too. Could you tell me whether there is any special config to enable spi or not ?? than…

Okay, I’m checking on your topic of SPI.

How to modify GPIO's toggle speed

Robotics & Edge Computing Jetson Systems Jetson Orin NX

wangqunpj July 6, 2023, 2:58am 4

for examle

GPIO from 0 to 1
GPIO from 1 to 0

Toggle speed is the time needed to GPIO works

How to config GPIO clock freq?

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How to modify GPIO's toggle speed

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