Renesas M3T-MR100 用户手册

   

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This function inspects the version information of MR100. 

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References Version Information(ref_ver, iref_ver) 

The ref_ver service call permits the user to get the version information of MR100. This version information can 
be obtained in the standardized format of µITRON specification. 

 

The short data queue is a function outside the scope of µITRON 4.0 Specification. The data queue function handles data as 
consisting of 32 bits, whereas the short data queue handles data as consisting of 16 bits. Both behave the same way except 
only that the data sizes they handle are different. 

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Send to Short Data Queue (vsnd_dtq, vtsnd_dtq) 

The data is transmitted to the short data queue. If the short data queue is full of data, the task goes to a data trans-
mission wait state. 

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Send to Short Data Queue (vpsnd_dtq, vipsnd_dtq) 

The data is transmitted to the short data queue. If the short data queue is full of data, the task returns error code 
without going to a data transmission wait state. 

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Forced Send to Short Data Queue (vfsnd_dtq, vifsnd_dtq) 

The data is transmitted to the short data queue. If the short data queue is full of data, the data at the top of the 
short data queue or the oldest data is removed, and the transmitted data is stored at the tail of the short data queue. 

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Receive from Short Data Queue(vrcv_dtq, vtrcv_dtq) 

The data is retrieved from the short data queue. If the short data queue has no data in it, the task is kept waiting 
until data is transmitted to the short data queue. 

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Receive from Short Data Queue (vprcv_dtq, viprcv_dtq) 

The data is received from the short data queue. If the short data queue has no data in it, the task returns error code 
without going to a data reception wait state. 

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Reference Short Data Queue Status (vref_dtq, viref_dtq) 

Checks to see if there are any tasks waiting for data to be entered in the target short data queue and refers to the 
number of the data in the short data queue.