On Tue, 16 Feb 2010, tsao.terence wrote:
> Hi Jim,
>
> I read the data sheet of the Radio card, it is uart interface, which
> supports up to 1000000 baud rate. That is why I am trying to figure out
^^^^^^^^^^^^^
This makes me very suspicious! What is the product - have you a web site
ref for the radio card?
> a solution because the maximum baudrate for TS7260 is 230K. I will like
> to use a USB to serial board like this:
> http://www.sparkfun.com/commerce/product_info.php?products_id=718
>
> What do you think?
>
> Thanks
>
> --- In Jim Jackson <> wrote:
>>
>>
>> Sorry but your whole query is pretty non-sensical...
>>
>> On Sun, 14 Feb 2010, tsao.terence wrote:
>>
>>> I have a 2.4Ghz radio card that supports up to 1Mbps transfer rate with
>>> uart interface. Therefore I am trying to hack the TS7260 uart to have
>>> the baudrate of 1000000. The only reason they quote maximum baudrate is
>>> only 230K is because the limitation of the RS232 chip on board.
>>
>> What interface does your radio card present for connection to the host
>> computer? The documentation (you know that stuff that nobody seems to read
>> :-) for the radio card should be specific.
>>
>> If it is an rs232-type serial interface, it should say something like rs232
>> at TTL levels, like TS describe some of their "rs232" interfaces.
>> They should also specify the EXACT baud rate at which they drive this
>> interface - you have to match this EXACT baud rate on the TS board side.
>> They should also say how many data bits, whether or not they use parity
>> etc.
>>
>> If they don't give this info, then start to suspect that it is not an rs232
>> type interface - there are many other types of serial interface e.g. i2c,
>> spi and these are driven in an entirely different way.
>>
>>>
>>> Therefore I will like to bypass the RS232 level, but I don't know if you
>>> can actually do that.
>>>
>>> 1.) Can I set the uart to a different set of pins therefore it doesn't go
>>> though the RS232 chip and it won't have baud rate limitation issue?
>>>
>>> 2.) Get a USB to serial converter, but I don't really like that idea, I
>>> want to use just the board itself.
>>>
>>> 3.) What else can I do to upscale the baudrate to 1000000 without having
>>> to distort the signal.
>>>
>>> Remember I want UART not RS232
>>>
>>> Thanks
>>>
>>>
>>
>
>
>
------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/ts-7000/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/ts-7000/join
(Yahoo! ID required)
<*> To change settings via email:
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|