[RVB2601 Creative Application Development] 2 Familiar with basic peripherals GPIO

lux168

[RVB2601 Creative Application Development] 2 Familiar with basic peripherals GPIO [Copy link]

 

I have been familiar with CH2601 and CDK system, but sometimes I don't study it continuously because of work, so I do it sporadically.

I feel that I am very slow at this, so I will improve it later. GPIO operation is the basic operation of any MCU, and it is easy to get started.

Start with this.

1: First, find the GPIO program in the CDK home interface, as shown in the figure

2: Create a new project and its directory, as shown in the figure

3: After clicking OK, CDK will automatically download the relevant files. This may take several minutes, as shown in the figure

4: Now the project is built and you can make relevant modifications and compile it, as shown in the figure

5: The three-color LED of the development board is connected to the GPIO controller of the CH2601 main chip through PIN pins PA7, PA25, and PA4.

By operating the GPIO PIN of PA7, PA25 and PA4, you can achieve the flashing of different colors of the three-color LED, which is equivalent to the effect of a marquee.

The two functions led_pinmux_init() and led_refresh() are mainly used to control GPIO. The demo_task is mainly called in the MAIN function.

To turn the light on and off, such as the blue light in the lower left picture .

That’s all for today. We’ll need to speed up our familiarity later.

soso

come on:)

freebsder

Come on, come on

xinmeng_wit

come on