Is X86J4125 slower than RaspberryPi through 40PIN GPIO?

Products & Technology ODYSSEY Serials
#1

Hi, there.
I am comparing the GPIO speed of Raspberry Pi and X86J4125(Used 40PIN connected to celeron, NOT 28PIN).
I found that X86J4125 is much slower than Raspberry Pi.
Isn’t X86J4125 suitable for high-speed GPIO access?

・Test environment
X86J4125
OS :Ubuntu 22.04.2 LTS(CUI)
Python :python 3.10.5
module :periphery GPIO

RaspberryPi
OS :RaspberryPi OS(LITE)6.1.21
Python :python 3.9.2
module :RPi.GPIO

・Test configuration
GPIO1:LOW to HIGH
GPIO2:HIGH to LOW
I measured the time between the above.

・Result
X86J4125:10.5μs

004
0041024×768 23.9 KB

RaspberryPi :2μs

001
0011024×768 25.6 KB

Regards,

#2

This is normal, you can not think that the CPU is strong, its GPIO flip-flop ability is strong, X86’s GPIO design position is static flip-flop, such as LEDs, simple control. @Shin

#3

@xieliang
thnak you for your reply.
Due to the design of the CPU, it is not suitable for complex GPIO control. Does that mean that there is no way to make GPIO faster?

#4

@Shin Yes for x86 CPU’s GPIO. but you can use other method, eg, MCU’s GPIO.