I think the web based FPGA image designer (Logi-Skeleton) is awesome! I designed an application with similar functionality but in PyQt4, It's great but I wish I had chosen a web based application for designing the entire FPGA image.
As an example I forgot what is on the FPGA attached to my computer and I just have to read the SDB to find out what is on there. Here is what happens when I read the SDB of the FPGA attached to my computer:
SDB
Bus: top @ 0x0000000000000000 : Size: 0x200000000
Number of components: 2
Bus: peripheral @ 0x0000000000000000 : Size: 0x06000000
Number of components: 6
SDB Type (Major:Minor) (01:00): SDB
Address: 0x0000000000000000-0x0000000000000440 : Size: 0x00000440
Vendor:Product: 8000000000000000:00000000
artemis_usb2 Type (Major:Minor) (22:03): Platform
Address: 0x0000000001000000-0x0000000001000004 : Size: 0x00000004
Vendor:Product: 800000000000C594:00000000
gpio1 Type (Major:Minor) (02:01): GPIO
Address: 0x0000000002000000-0x0000000002000008 : Size: 0x00000008
Vendor:Product: 800000000000C594:00000002
sata Type (Major:Minor) (14:01): Storage Manager
Address: 0x0000000003000000-0x0000000003001000 : Size: 0x00001000
Vendor:Product: 800000000000C594:00000010
dma Type (Major:Minor) (13:01): DMA
Address: 0x0000000004000000-0x0000000004000095 : Size: 0x00000095
Vendor:Product: 800000000000C594:0000C594
artemis Type (Major:Minor) (22:02): Platform
Address: 0x0000000005000000-0x0000000005000003 : Size: 0x00000003
Vendor:Product: 800000000000C594:00000000
Bus: memory @ 0x0000000100000000 : Size: 0x08000000
Number of components: 1
ddr3_mem Type (Major:Minor) (06:03): Memory
Address: 0x0000000000000000-0x0000000008000000 : Size: 0x08000000
Vendor:Product: 800000000000C594:00000000
I added it to Nysa and it has simplified all interactions with the FPGA. I hope ValentFX does because it would allow both of our software to inter-operate one day. If you do end up implementing SDB I hope that we can work together to define standardized device numbers (GPIO's major number = 0x02, SDB major number 0x01, etc...)
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