Wukongpai Allwinner H3 development board basic peripheral function test

aleksib

Wukongpai Allwinner H3 development board basic peripheral function test [Copy link]

 

# 1. Test environment hardware: wukongpi H3 System: ubantu Image: Orangepizerolts_2.0.8_ubuntu_bionic_server_linux5.4.27.img # 2. Peripheral function test pin diagram:  **1. spi**  ```css //1. The system turns off SPI by default. Open the file: vi /boot/orangepiEnv.txt //2. Enter the following content: overlays=spi-spidev param_spidev_spi_bus=1 #Change to the corresponding spi bus number supported by the development board //3. Save and restart reboot ```  After restarting, enter dev and you can see the spi that has just been enabled  The spi function can use a DuPont line to short-circuit MOSI and MISO to perform self-transmitting and receiving data testing. Simply wrote a spi driver test: Test results: ```css root@orangepizerolts:~# ls SPI_test.zip root@orangepizerolts:~# unzip SPI_test.zip Archive: SPI_test.zip inflating: SPI_test/Makefile inflating: SPI_test/spi_main.cpp inflating: SPI_test/SpiDevice.cpp inflating: SPI_ test/SpiDevice.h root@orangepizerolts:~# ls SPI_test SPI_test.zip root@orangepizerolts:~# cd SPI_test/ root@orangepizerolts:~/SPI_test# ls Makefile SpiDevice.cpp SpiDevice.h spi_main.cpp root@orangepizerolts:~/SPI_test# make make: Warning: File 'Makefile' has time modification 27539 s in the future g++ -Wall -std=c++11 -c spi_main.cpp spi_main.cpp: In function 'int main()': spi_main.cpp:22:9: warning: unused variable 'num' [-Wunused-variable] int num =10; ^~~ g++ -Wall -std=c++11 -c SpiDevice.cpp g++ -Wall -std=c++11 -o spi _test spi_main.o SpiDevice.o make: warning: Clock skew detected. Your build may be incomplete. root@orangepizerolts:~/SPI_test# ls Makefile SpiDevice.cpp SpiDevice.h SpiDevice.o spi_main.cpp spi_main.o spi_test root@orangepizerolts:~/SPI_test# ./spi_test Received data: 0xaa 0xbb 0xcc Received data: 0xaa 0xbb 0xcc Received data: 0xaa 0xbb 0xcc Received data: 0xaa 0xbb 0xcc Received data: 0xaa 0xbb 0xcc Received data: 0x0 0x0 0x0 Received data: 0x0 0x0 0x0 Received data: 0x0 0x0 0x0 Received data: 0x0 0x0 0x0 Received data: 0x0 0x0 0x0 Received data: 0xaa 0xbb 0xcc Received data: 0xaa 0xbb 0xcc Received data: 0xaa 0xbb 0xcc ^C root@orangepizerolts:~/SPI_test# ``` By default, aa bb cc is sent. When mosi and miso are short-circuited, the received data is also aa bb cc. After unplugging one end in the middle, aa bb cc cannot be received normally. **2. uart**  ```css //1. The system turns off uart1 and uart2 by default. Open the file: vi /boot/orangepiEnv.txt //2. Enter the following content: overlays=uart1 uart2 //3. Save and reboot ```  a) uart1 in 26pin corresponds to /dev/ttyS1 b) uart2 in 26pin corresponds to /dev/ttyS2

chejm

The content shared by the host about the basic peripheral function test of the Wukongpai Allwinner H3 development board is very detailed. I hope to experiment with this board myself.