The DPUCZDX8G generates an interrupt to
signal the completion of a task. A high state on reg_dpu0_start signals the start of a
DPUCZDX8G task for DPUCZDX8G core0. At the end of the task, the
DPUCZDX8G generates an interrupt and bit0
in reg_dpu_isr is set to 1. The position of the active bit in the reg_dpu_isr depends on
the number of DPUCZDX8G cores. For example,
when DPUCZDX8G core1 finishes a task while
DPUCZDX8G core0 is still working,
reg_dpu_isr would maintain 2’b10.
There will be DPU_NUM of dpux_interrupt
signals for each of DPUCZDX8G cores. Theses
signals shall be routed through a concat block, and then be connected to the PS. The
reference connection is shown here.
Figure 1. Reference Connection for DPUCZDX8G Interrupt
Note:
- If the softmax option is enabled, then the softmax interrupt should be correctly connected to the PS according to the device tree description.
- irq7~irq0 corresponds to pl_ps_irq0[7:0].
- irq15~irq8 corresponds to pl_ps_irq1[7:0].