User Manual

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implementation of the mechanism needs to open the serial port interrupt. The serial port buffers

the data into the FIFO every time the serial port generates the receiving interrupt. The main

program only needs to check and judge the data length of the FIFO, and can fully utilize the

waiting time of the mode 1), which has higher Time utilization, but at the expense of space

utilization.

Th e serial port generates

a receive interrupt

Use fifo_put or

fifo_put_byte receive

cached data

Start measuring

fifo_get_only() get two

bytes

fifo_get_only() get two

bytes Conver to length

Is it a 2-byte header

Use the API interface

HPS3D_MeasureDataParse() to parse the

data received

At the end of this

measurement

fifo_clear_bytes(fifo, 2);

fifo_get_element_size() > 4?

fifo_get_element_size() >= L?

fifo_get(fifo, buff, L+4)

gets a frame of data

fifo_init(fifo);

Initialization FIFO