This demo can drive the display of our company's Pico series and the source code will be updated all the time. Open main.c under the c folder, you can change the demo you need. (Note: Be sure to write the path where your own SDK is located) Then you should create build and add the path like these: Open a terminal and enter the directory of C codes:įor example, if the path of SDK is. However, due to the multi-platform and portable features of CMake, it can also be successfully compiled on a PC, but the operation is slightly different, and you need to judge by yourself.
If you buy the V2 version which has a joystick sudo apt-get install p7zip-full If you buy the V1 version which has four keys. Open the terminal and run the following command： You can connect the display according to the table.ĭata/Command control pin (High for data, Low for command) You can also check the pin of Pico and the LCD board when connecting. Please take care of the direction when you connect Pico, a USB port is printed to indicate. Pico-LCD-1.14 Connection And Demo Hardware connection SPI0 is commonly used, in which CPHL = 0, CPOL = 0. However, CPOL has little effect on the transmission.ĬPHA determines whether data is collected at the first clock edge or at the second clock edge of the serial synchronous clock when CPHL = 0, data is collected at the first clock edge. SPI communication has data transfer timing, which is combined by CPHA and CPOL.ĬPOL determines the level of the serial synchronous clock at an idle state. SCL work s the SCLK pins of SPI interface. SDA is the data pin for transmitting RGB data, it works as the MOSI pin of SPI interface RESX Is the reset pin, it should be low when powering the module and be higher at other times ；ĬSX is slave chip select, when CS is low, the chip is enabled.ĭ/CX is data/command control pin, when DC = 0, write command, when DC = 1, write data Note: Different from the traditional SPI protocol, the data line from the slave to the master is hidden since the device only has a display requirement.
The LCD uses a four-wire SPI communication interface, which can greatly save the GPIO port, and the communication speed will be faster. The LCD supports 12-bit, 16-bit, and 18-bit input color formats per pixel, namely RGB444, RGB565, and RGB666 three color formats, this routine uses RGB565 color format, which is also a commonly used RGB format. There are two types of horizontal and vertical screens, so the internal RAM of the LCD is not fully used. The built-in controller used in this LCD is ST7789VW, which is an LCD controller with 240 x RGB x 320 pixels, while the pixels of this LCD itself is 135 (H) RGB x 240 (V).
Provide Pico C demo Parameters Parameter name
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