Undeclared class members on line 548 (/lib/video/dma.py)

[naru2303]

• PYNQ version : v3.0.0 and v3.0.1
• Board name : Pynq Z1
• Pull request type : bug fix
• Pull request number:
• Description: undeclared members, self.s2mm_introut and self.mm2s_introut on init line 548 (/lib/video/dma.py)
• this will issue a failure "unrecognized self.s2mm_introut and self.mm2s on line 580 and 582

[mariodruiz]

@PREDATORNaruz,

I don't think this is a bug. Please post your question in the https://discuss.pynq.io/ forum.

I assume you have not connected the interrupts as described in the documentation https://pynq.readthedocs.io/en/latest/pynq_libraries/interrupt.html

Mario

[naru2303]

@mariodruiz You're right, on my block design the s2mm and mm2s interrupts of the VMDA goes to the concat block and directly to the PS.... However, after initializing mm2s and s2mm in dma.py (just adding self. = '' to both interrupts) everything worked fine... Do you recommend going through Axi Interrupt Controller like the guide says ? here's a code snipped

         vdma.write(0x00,0x04)
         while vdma.read(0x00) & 0x4 == 4:
              pass

         vdma.write(0x30,0x04)
         while vdma.read(0x30) & 0x4 == 4:
              pass

         vdma.write(0x00,0x93)
         vdma.write(0x5C,addr_inp_buff)
         vdma.write(0x58,widht3)
         vdma.write(0x54,widht3)
         vdma.write(0x50,hight)

         vdma.write(0x30,0x93)
         vdma.write(0xAC,addr_output_buff)
         vdma.write(0xA8,widht)
         vdma.write(0xA4,widht)
         vdma.write(0xA0,hight)

         while vdma.register_map.S2MM_VDMASR.Halted != 1:
             pass

[mariodruiz]

Do you recommend going through Axi Interrupt Controller like the guide says ?

Yes, for more than 1 interrupt, using the interrupt controller is the only way that PYNQ will associate the interrupts.