Figure 5-18 Timeout Detection Processing - Fujitsu F2MC-8FX Series User Manual

④ DATA field
This section explains data sending and reception processing in the data field.
First, regarding data sending, if the ID received in the ID field is for a send ID, the
vTimeoutCheckTask function is called by the 8/16-bit complex timer (free run timer)
interrupt, as shown in "Figure 5-18 Timeout detection processing".This function is called
when the timeout value set using the free run timer is detected, and in this case, is called the
detection of the timeout values from the header reception to the response sending (response
space).In the vTimeoutCheckTask function, processing is separated into pre-sending and
initialization processing, etc., according to the status information, and if the status is
pre-sending, the first data byte is sent.
void vTimeoutCheckTask(void){
(Omitted)
if ( uiIntDemandCounter == 0 ) {
switch ( ucLinStatus ) {
case LIN_PRETRANSMIT:
ucLinStatus = LIN_TRANSMIT;
ucSaveData = ucUartTxBuffer[0];
l_ifc_tx(ucUartTxBuffer[0]);
(Omitted)
case LIN_UART_INITIAL:
(Omitted)
case LIN_ID_RECEPTION:
(Omitted)
case LIN_DATA_RECEPTION:
(Omitted)
case LIN_TRANSMIT:
(Omitted)
case LIN_WAIT_SYNCH_FIELD_START:
(Omitted)
}
}

Figure 5-18 Timeout detection processing

105
Status before sending
State transition: DATA FIELD send
status
Acquiring 1-byte send data
Data transmit processing
AN07-00200-03E