Precautions For Processing Flow - Renesas RH850 Series Application Note

RH850 Series
6.

Precautions for Processing Flow

6.1 About Functions
In this application note, there is a part that is functionalized even in the processing of single line, but this is only
described as a function to clarify the processing for each function. When you actually create a program, it is not
necessary to make it functional.
6.2 Settings for Each Channel, FIFO, and Buffer
In this application note, even if processing is required for each channel, FIFO, or buffer, only one processing is
described. When actually creating a program, perform multiple processes as necessary.
6.3 Infinite Loop
To simplify the notation, there are some infinite loops in the processing flow. When actually creating a program, give
each loop a time limit so that it can be exited during overtime. Figure 6-1 shows an example of processing with a loop
time limit.
No
Clear receive buffer reception completion flag in the
receive buffer reception completion flag register
Corresponding receive buffer reception
R01AN6028EJ0100 Rev.1.0
May 10, 2017
START
Is there a new message in the
receive buffer?
Yes
complete. Is the flag "0"?
Yes
END
Figure 6-1 Example of Processing with Loop Time Limit
CAN Receive Procedure (CAN FD Mode)
No
Timeout time has passed?
Yes
Timeout
No
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