The testing script is divided into master and salve modes. Run the corresponding script based on the mode configured in the SPI driver.
Two RDK X3 development boards can be used: one configured as master mode and the other as salve mode. The configuration process can refer to the SPI Debugging Guide. First, execute the master-side testing script: sh spitest_master.sh &, then execute the salve-side testing script: sh spitest_salve.sh &. The time interval between the two script executions should be as short as possible.