• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 98 subscribers
  • Views 522 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

c6748 EDMA interrupt

si cheng
Expert 2685 points
Other Parts Discussed in Thread: TMS320C6748, OMAP-L138

hello:

The <<TMS320C6748 DSP Technical Reference Manual>>,16.1.2 Features says,  EDMA3_0_CC0 and EDMA3_1_CC0 all have 5 interrupts!

• EDMA3_0_CC0:

– 5 interrupts:
• EDMA3_0_CC0_INT0
• EDMA3_0_CC0_INT1
• EDMA3_0_CC0_INT2
• EDMA3_0_CC0_INT3
• EDMA3_0_CC0_ERRINT

• EDMA3_1_CC0:
– 5 interrupts:
• EDMA3_1_CC0_INT0
• EDMA3_1_CC0_INT1
• EDMA3_1_CC0_INT2
• EDMA3_1_CC0_INT3
• EDMA3_1_CC0_ERRINT

1.But  <<TMS320C6748 Fixed/Floating-Point DSP>> 5.7 Interrupts  table, there are only EDMA3_0_CC0_INT1,EDMA3_0_CC0_ERRINT, EDMA3_1_CC0_INT1,  EDMA3_1_CC0_ERRINT, I want to know where are the 

• EDMA3_0_CC0_INT1
• EDMA3_0_CC0_INT2
• EDMA3_0_CC0_INT3

and 

• EDMA3_1_CC0_INT1
• EDMA3_1_CC0_INT2
• EDMA3_1_CC0_INT3   ?????


2. EDMA3_0_CC0_INT1 and EDMA3_1_CC0_INT1 are Shadow Region, where is the Global Region interrupt?


Thanks!

  • 0
    TI__Guru* 84110 points

    Si Cheng,

    The interrupts listed in the TRM are internal signals that are generated in the EDMA3 modules.

    The interrupts listed in the datasheet are the ones that are routed to the the DSP's interrupt logic.

    The remaining interrupt signals generated in the EDMA3 modules may be routed to other modules in the device or may be unused. For example, the OMAP-L138 is identical to the C6748 except it has additional modules, such as the ARM9 core.

    Regards,
    RandyP