Periodic Recalibration Flow

Besides the one-off auto calibration flow, you can use the periodic calibration feature provided by the HyperRAM Controller core to recalibrate the HyperRAM at a set time interval. The time interval can be configured through the IP Configuration GUI.

When it is time, you can choose to start calibration through the user signal provided. Your existing data that was written into the HyperRAM is not affected by periodic calibration. When the periodic calibration starts, any transaction at the user interface is paused and resumes after the calibration is done. The following figure illustrates the periodic recalibration flow waveform.