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elcielo
Joined: 13 Jun 2002
Posts: 854
Helped: 6
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 03 May 2004 12:30 baud rate converter |
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| baud rate converter using MCU with 2ea UART.
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Antharax
Joined: 01 Jan 1970
Posts: 227
Helped: 13
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04 May 2004 8:10 baud rate convertor |
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Just design it then. Time to send a byte might be faster but time for the complete message stays the same.
You need to buffer the incomming data from the highest baudrate.
What experience with uC's do you have? What microcontrollers are you using, what languages do you know?
Post your questions, code, ... here and you'll get there.
When you're lucky, someone here already designed something similar and is willing to post his design (or send it to you)
Antharax
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artem
Joined: 22 May 2003
Posts: 1652
Helped: 91
Location: Turan
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04 May 2004 9:28 I want UART to UART baud rate converter. |
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Make 2 ring buffers :
first for port1 Tx and port2 Rx
second for port2 Tx and prot1 Rx
and work with interrupts
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Antharax
Joined: 01 Jan 1970
Posts: 227
Helped: 13
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04 May 2004 9:36 Re: I want UART to UART baud rate converter. |
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I don't think you even need a ring buffer for the low speed to high speed conversion.
And yes, using interrupts is a good idea, although you could probably do this polling too.
Antharax
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gam
Joined: 25 Mar 2004
Posts: 117
Helped: 4
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04 May 2004 13:22 Re: I want UART to UART baud rate converter. |
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I am sorry, what is exactly the function fo this devie you want to build.
thanks,
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artem
Joined: 22 May 2003
Posts: 1652
Helped: 91
Location: Turan
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04 May 2004 13:33 I want UART to UART baud rate converter. |
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| Buffer will be needed if duplex connection is used - data flow is to be in both directions . At least one buffer will be needed for sure when receiving data from high speed Rx and putting into low speed Tx side.
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Google
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04 May 2004 13:33 Ads |
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dainis
Joined: 15 May 2001
Posts: 1451
Helped: 56
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04 May 2004 17:47 Re: I want UART to UART baud rate converter. |
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| artem wrote: |
| Buffer will be needed if duplex connection is used - data flow is to be in both directions . At least one buffer will be needed for sure when receiving data from high speed Rx and putting into low speed Tx side. |
And maybe, hardware or software "Handshaking" for high to low speed data transfer...
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