Renesas Electronics
18.2.3 Synchronization and communication functions (semaphores) The following shows the service calls provided by the RI600V4 as the synchronization and communication functions (semaphores). Table 18-5 Synchronization and Communication Functions (Semaphores) Service Call Function Useful Range wai_sem Acquire semaphore resource (waiting forever) Task pol_sem Acquire semaphore resource (polling) Task ipol_sem Acquire semaphore resource (polling) Non-task twai_sem Acquire semaphore resource (with time-out) Task sig_sem Release semaphore resource Task isig_sem Release semaphore resource Non-task ref_sem Reference semaphore state Task iref_sem Reference semaphore state Non-task