Search found 11 matches
- Tue Jan 24, 2023 6:41 pm
- Forum: NetBurner Hardware
- Topic: NetBurner with gigabit LAN-Interface
- Replies: 15
- Views: 20875
- Mon Aug 09, 2021 4:37 pm
- Forum: NetBurner Hardware
- Topic: Can MOD54417 Flexbus be used in 32-bit mode
- Replies: 8
- Views: 13563
Re: Can MOD54417 Flexbus be used in 32-bit mode
I'll go ahead and open a support case. Prior to and during configuration, the Altera Cyclone V are supposedly tri-stated, so hopefully it will not interfere with the MOD54417 boot. We've done some initial tests with an FPGA eval board where is seems to work (we're probably the ones who had trouble w...
- Fri Aug 06, 2021 6:36 pm
- Forum: NetBurner Hardware
- Topic: Can MOD54417 Flexbus be used in 32-bit mode
- Replies: 8
- Views: 13563
Re: Can MOD54417 Flexbus be used in 32-bit mode
Having ALE would be really helpful. The timing diagram (eg Fig 20-8 of RM) makes it look like the address is asserted for exactly 1 clock cycle during the address phase. But if that were not the case, I would have no way of generating ALE for exactly one pulse right before CS goes low on my own. I w...
- Thu Aug 05, 2021 4:45 pm
- Forum: NetBurner Hardware
- Topic: Can MOD54417 Flexbus be used in 32-bit mode
- Replies: 8
- Views: 13563
Re: Can MOD54417 Flexbus be used in 32-bit mode
Hello lgitlitz, Thanks for the detailed reply. Sounds like it might work. It does not change the board design, so I can always revert to 16-bit addr and 16-bit data if I need to. I had planned to do something similar to what you suggest on the FPGA side, but I don't think I need any wait states. I c...
- Wed Aug 04, 2021 5:19 pm
- Forum: NetBurner Hardware
- Topic: Can MOD54417 Flexbus be used in 32-bit mode
- Replies: 8
- Views: 13563
Can MOD54417 Flexbus be used in 32-bit mode
We're connecting an FPGA to a MOD54417 module. We would greatly prefer to set the port size to 32-bits by setting the CSCR port size to "00". But I notice the platform reference says: The MOD5441x provides 16 address lines (A0-A15) and a 16-bit data bus (D16-D31) running in mode 2. An addr...
- Tue Jul 20, 2021 6:06 pm
- Forum: NetBurner Hardware
- Topic: MOD54417 FlexBus IO Standard
- Replies: 3
- Views: 5977
Re: MOD54417 FlexBus IO Standard
I guess my png attachment did not take.
- Tue Jul 20, 2021 6:04 pm
- Forum: NetBurner Hardware
- Topic: MOD54417 FlexBus IO Standard
- Replies: 3
- Views: 5977
Re: MOD54417 FlexBus IO Standard
Seems like it should work. I take it 0.65 Vcc = 2.145 confirms Vcc = 2.145 / 0.65 = 3.3 V for the flex bus voltage. But the MCF54417 data sheet seems to have different numbers. It has Vin high min = 0.51 * VDD instead of 0.65 * VDD. The 0.51 and 0.42 for the Vin high min and Vin low max and did seem...
- Fri Jul 16, 2021 4:03 pm
- Forum: NetBurner Hardware
- Topic: MOD54417 FlexBus IO Standard
- Replies: 3
- Views: 5977
MOD54417 FlexBus IO Standard
We're connecting an FPGA to a MOD54417 via FlexBus. Unfortunately, newer FPGA's (20 nm and below) do no support 3.3 V LVCMOS. They max out at 3.0 V LVCMOS and the Altera Cyclone 10, Arria 10 etc chips only have 48 of those. Looking at the MOD54417 data sheet, it should still work so long as the Flex...
- Fri Apr 02, 2021 2:08 pm
- Forum: NetBurner Hardware
- Topic: NetBurner with gigabit LAN-Interface
- Replies: 15
- Views: 20875
Re: NetBurner with gigabit LAN-Interface
SOM's with PCIe often use an edge connector with PCIe lanes as well as other things (ie GPIO, SPI etc). That would work well but tends to limit how many signals are available. There are of course other possibilities. We would prefer not have any cabling from the SOM to our baseboard. Note that we wo...
- Thu Apr 01, 2021 6:55 pm
- Forum: NetBurner Hardware
- Topic: NetBurner with gigabit LAN-Interface
- Replies: 15
- Views: 20875
Re: NetBurner with gigabit LAN-Interface
I would GREATLY prefer the option of your tools ported to an FPGA SoC! I used Xilinx tools for many years and we considered Zynq. The Xilinx embedded tools are actually pretty good. Nothing approaching yours, but getting FreeRTOS working is fairly easy. The problem is on the FPGA side where Vivado i...