Example: Setting Petalinux Boot IDLE state - 2021.2 English

Xilinx Power Estimator User Guide (UG440)

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2021.2 English
One of the very common example is PetaLinux Boot Idle state. It represents a system or state when GPU is not needed. However, the processors are immediately ready.

This mode requires the following configuration into the XPE PS sheet:

  1. Set R5 Idle: Set R5 load to 0%
  2. Set A53 Idle: Set A53 processor load to 0%
  3. Set GPU Off:
    1. Set number of GPU processors to 0 from the drop down list
    2. Clear the clock frequency of GPU and set load to 0%
    3. Clear the GPU PLL clock frequency

The following figure shows this mode where Processors (A53 and R5) are Idle and GPU is OFF.

Figure 1. PetaLinux Boot IDLE State Example