【W806 Lianshengde Development Board】Real-time performance

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【W806 Lianshengde Development Board】Real-time performance [Copy link]

 

I bought the [W806 Lianshengde development board] on Taobao for a few dollars. It is said that the main frequency is 240Mhz. After getting the board, I tested the lighting program first according to my habit.

The lighting program uses the GPIOtrigger function in the SDK provided by the manufacturer, but I found that the maximum frequency of the LED flashing is only about 1Mhz (LED flashing delay 0). According to the performance of the w800 chip, it doesn't feel like this. I don't know where the problem comes from. Does anyone who has used this board know what the problem is?

迈尔风随

Is the hardware flip rate of the IO port limited to this speed? Or use the register method to see if it will be faster.

littleshrimp

Check the clock configuration to see if it is not running at full speed.

damiaa

The flip rate of GPIO can be set, right? But there is a limit, and the CPU performance may not be fully utilized here.

freebsder

You try using pwm to eliminate the software influence.

dql2016

This board is very cheap, it seems to be 5 yuan including shipping, so don't ask for too much.