1.8.10. Consistency in the IO DriverΒΆ

The IO-consistency is realized by the IO-manager only. But to realize this consistency with a maximum performance, the following conditions must be fulfilled with support by the IO-driver:

  1. Placeholder of IoStandard.library V3.1.3.2 must be integrated in the target description

  2. IoDriver must set the DRVPROP_CONSISTENCY property flag for the Io-Manager (with the interface function IoMgrSetDriverProperties())

  3. SysCpuTestAndSet / SysCpuTestAndReset must be used for each bit input and output access in the IoDriver!