Explain the principles and experimental standards of electromagnetic compatibility, explain the principles and selection of commonly used devices, and explain protection circuits
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB); This sentence is to enable the GPIOB peripheral. If this sentence is not there, port B cannot be used, right? I don't understand the program very well, ple
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I2C communication, device address problemI2C communication, device address problem
When initializing OV9650 and reading and writing registers via I2C, #define CAMERA_I2C_ADDR 0x30 #define I2C_SLAVE 0x