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Altera_Forum's avatar
Altera_Forum
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12 years ago

The Avalon-MM slave interface in the Rapidio IP core

Hello

The Concentrator module provides an Avalon-MM slave interface that accesses all configuration registers in the RapidIO IPcore.

while i was configing the IO module registers through the Avalon-MM slave interface,i make the sys_mnt_s_address[16:2]be the register's address ,and make the sys_mnt_s_writedata[31:0] be the configure data,when i use the signaltap to see the register's value ,the value names sys_mnt_s_readdata[31:0]===32'b0,the value of sys_mnt_s_readdata[31:0] wasn't equal to sys_mnt_s_writedata[31:0]

Does the way that i configure the register is right? why the value of sys_mnt_s_readdata[31:0] wasn't equal to sys_mnt_s_writedata[31:0] ?

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    What you're describing clearly doesn't tie up with what you're seeing. I suspect your code isn't connected up as you think it is or need it to be.

    Do you want to post some of the code and we can have a look?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    hello ,thank you for your help

    now ,i meet a new question:i can't find how to configure the signal io_s_address[31:3] (the signal of IO slave module)

    and when i use the signaltap to capture the signal packet_transmitted,it was always low_level,that means the packet wasn't send out of the IP core .i want to know what may cause the signal packet_transmitted always low_level?(i has already configured the IO slave module's registers)

    I'm looking foraward your help,thank you