UART Extended-Function Receive Data

The UART Extended-Function Receive Data feature reads one byte from the extended-function UART receive FIFO buffer. The extended-function UART block provides a 256-byte buffer to receive asynchronous serial data from external devices connected to the camera’s UART input. This feature allows host software to retrieve incoming bytes from the buffer, one at a time, as they arrive.

Before calling this feature, host software should check the UART Extended-Function Receive FIFO Count to ensure that data is available. This avoids reading from an empty buffer and ensures valid data is returned.

UartEFRxData node

• Access mode: Read Only
• Node type: Uint32

You can use the eSDK API functions to get the node’s current value.

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