UART Extended-Function Transmit Data

The UART Extended-Function Transmit Data feature writes one byte to the extended-function UART transmit FIFO buffer. The extended-function UART block includes a 256-byte transmit buffer, which queues bytes for asynchronous serial output. Writing to this feature sends a byte to the FIFO, where it will be transmitted in order through the camera’s UART output line.

Before writing to the transmit FIFO, host software should check the UART Extended-Function Transmit FIFO Count to confirm that space is available. This prevents buffer overflow and ensures that all bytes are successfully queued for transmission.

UartEFTxData node

• Access mode: Read/Write
• Node type: Uint32

You can use the eSDK API functions to:

• get and set the node’s current value
• get the node’s minimum and maximum values, and the node’s value increments

For information about related features, see General Purpose Input/Output Control Features.