Hello, I am working with a USRP2 board and the old GNU Radio driver (not the UHD driver) under Ubuntu 10.04. I added a module to the FGPA in the file named u2_core.v and I defined some setting registers in order to control it. On the other hand, in the host side, I used the poke32 method to set the values of each register.
My doubt is whether is possible or not, to read from the host the value of a FPGA register, such as the output of my module. I thouht that the method named peek32 could be useful but it is confusing for me. If I understood right the architecture, the AeMB processor loads from the memory (defined by the memory_map.h file) the value of every setting register via the Slave #7 (Setting Bus) and by using the poke32 method I tell the AeMB processor (modifying the memory) what value it has to load. Hence, the communication flows from the AeMB processor to the registers. My question is: Is it possible to establish the communication the other way around? I mean, load a setting register value into the AeMB memory so I can read it using the peek32 method. Related to this: - Is there an existing example of the peek32 method usage? Not necessarily of a setting register. From the mailing list I read: "Readback registers are only implemented for states that we need to readback from the device." Could someone give me an example of this? - The firmware file named memory_map.h refers to a logic place in the AeMB, right? What FPGA file defines this place? A lot of thanks for any help. Greetings. Eduardo. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
