Looking for contractor for FPGA-based multiUART

A

Axel Mammes

Guest
Hi everyone,

I'm looking for someone that can develop an FPGA based multiUART with
32 UARTs for me.

My software will run on this board: h**p://www.andahammer.com/mini35-
sdk.

The mini2440 ARM board has 40 pin system expansion bus connector that
will connect to the multiuart PCB you develop.

Each UART in the multiUART will connect to a gasoline dispenser using
optoisolated 20mA, 30 mA, 45mA current loop. I will provide schematics
for the TTL-current loop conversion.

I was thinking the UARTs could be the 16750 from opencores.org. It's
supposed to be stable and it works with standard Linux drivers. h**p://
opencores.org/project,uart16750

Check out the schematics of a mini2440 expansion card that Eric
Brombaugh already developed.
h**p://members.cox.net/ebrombaugh1/synth/mini_2440_fpga/index.html



Regards
Axel
 
"Axel Mammes" <fpgausenet@gmail.com> wrote in message
news:9e4fa494-8e3b-4b87-ab50-051fcadc4702@y35g2000prc.googlegroups.com...
Hi everyone,

I'm looking for someone that can develop an FPGA based multiUART with
32 UARTs for me.

My software will run on this board: h**p://www.andahammer.com/mini35-
sdk.

The mini2440 ARM board has 40 pin system expansion bus connector that
will connect to the multiuart PCB you develop.

Each UART in the multiUART will connect to a gasoline dispenser using
optoisolated 20mA, 30 mA, 45mA current loop. I will provide schematics
for the TTL-current loop conversion.

I was thinking the UARTs could be the 16750 from opencores.org. It's
supposed to be stable and it works with standard Linux drivers. h**p://
opencores.org/project,uart16750

Check out the schematics of a mini2440 expansion card that Eric
Brombaugh already developed.
h**p://members.cox.net/ebrombaugh1/synth/mini_2440_fpga/index.html



Regards
Axel
Click to expand...
How much are you thinking of paying ?

MK
 
On Jan 31, 5:08 pm, Axel Mammes <fpgause...@gmail.com> wrote:
Hi everyone,

I'm looking for someone that can develop an FPGA based multiUART with
32 UARTs for me.

My software will run on this board: h**p://www.andahammer.com/mini35-
sdk.

The mini2440 ARM board has 40 pin system expansion bus connector that
will connect to the multiuart PCB you develop.

Each UART in the multiUART will connect to a gasoline dispenser using
optoisolated 20mA, 30 mA, 45mA current loop. I will provide schematics
for the TTL-current loop conversion.

I was thinking the UARTs could be the 16750 from opencores.org. It's
supposed to be stable and it works with standard Linux drivers. h**p://
opencores.org/project,uart16750

Check out the schematics of a mini2440 expansion card that Eric
Brombaugh already developed.
h**p://members.cox.net/ebrombaugh1/synth/mini_2440_fpga/index.html

Regards
Axel
Click to expand...
It might be easier and cheaper to use an XMOS device:

http://www.xmos.com/
 
On Sun, 6 Feb 2011 10:33:06 -0800 (PST), Leon <leon355@btinternet.com> wrote:

On Jan 31, 5:08 pm, Axel Mammes <fpgause...@gmail.com> wrote:
Hi everyone,

I'm looking for someone that can develop an FPGA based multiUART with
32 UARTs for me.

My software will run on this board: h**p://www.andahammer.com/mini35-
sdk.

The mini2440 ARM board has 40 pin system expansion bus connector that
will connect to the multiuart PCB you develop.

Each UART in the multiUART will connect to a gasoline dispenser using
optoisolated 20mA, 30 mA, 45mA current loop. I will provide schematics
for the TTL-current loop conversion.

I was thinking the UARTs could be the 16750 from opencores.org. It's
supposed to be stable and it works with standard Linux drivers. h**p://
opencores.org/project,uart16750

Check out the schematics of a mini2440 expansion card that Eric
Brombaugh already developed.
h**p://members.cox.net/ebrombaugh1/synth/mini_2440_fpga/index.html

Regards
Axel

It might be easier and cheaper to use an XMOS device:

http://www.xmos.com/
Click to expand...
What baudrate do you need? The mention of optoisolated current loops suggests fairly low - 32 slow
UARTS on something like a low-end ARM should be pretty doable.
 
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