USARTx->DR = (Data & (uint16_t)0x01FF);
时间: 2023-12-15 07:12:29 浏览: 59
& 0xFF);
This line of code sends data over the USART (Universal Synchronous/Asynchronous Receiver/Transmitter) interface.
USARTx is the name of the USART interface that is being used. The "x" can be replaced with a number to specify which USART interface is being used if there are multiple on the microcontroller.
DR is the data register of the USART interface. Writing data to this register sends it over the USART.
Data is the 8-bit data that is being sent over the USART.
The "& 0xFF" is a bitwise AND operation that ensures that only the least significant 8 bits of the data are sent over the USART. This is necessary because the DR register is only 8 bits wide.
Overall, this line of code sends an 8-bit data byte over the specified USART interface.
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