Running Demo Code

To run the demo code, perform the following on VisionFive 2 Debian:

Locate to the directory where the test code, 2.4inch_LCD_demo, exists:
1. Execute the following command to install dependency:
```
pip install pillow
```
2. Execute the following command to get the directory where VisionFive.gpio exists:
```
pip show VisionFive.gpio
```
  Result:
```
Location: /usr/local/lib64/python3.9/site-packages
```
  Note:
  The actual output depends on how the application is installed.
3. Execute the following to enter the directory, for example, /usr/local/lib64/python3.9/site-packages as indicated in the previous step output:
```
cd /usr/local/lib64/python3.9/site-packages
```
4. Execute the following command to enter the sample-code directory:
```
cd ./VisionFive/sample-code/
```
5. Execute the following command to enter the directory where the test code, 2.4inch_LCD_demo, exists:
```
cd ./lcddemo/example/
```
Under the sample-code directory, execute the following command to execute the demo code:
```
sudo python 2.4inch_LCD_demo
```
Alternatively, you can execute the following command:
```
sudo python3 2.4inch_LCD_demo
```
Result:
- On the 2.4inch LCD:
  - First, the following picture with the StarFive logo will be displayed for two seconds.
    Figure 1. Example Output
  - Then the following two official example figures will be displayed in turn.
    Figure 2. Example Output
- The terminal output is as the following.
```
-----------lcd demo-----------
Set SPI mode successfully
spi mode: 0x0 
bits per word: 8
max speed: 40000000 Hz(40000 kHz)
2022-07-04 16:40:40 
2022-07-04 16:40:41 
2022-07-04 16:40:41 
2022-07-04 16:40:42 
2022-07-04 16:40:42 
2022-07-04 16:40:43 
2022-07-04 16:40:44 
2022-07-04 16:40:44 
2022-07-04 16:40:45
```
  The output indicates:
  - that the SPI mode is set successfully
  - the SPI mode
  - the date and time when all the above three figures are displayed