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Hi guys,

I'm new about BX24P. But I've realized a little software that it can
get a fixed number of bytes from COM1, extracts some information and
generates a new byte array that it sends through COM3.

Now, really it cannot get a fixed number of byte, but it must get all
bytes from COM1 until it receive a special chars (for example, "X" 88
decimal).

Now I'll show you a portion of the code:
=================================================
[...]
dim q_in(1 to 10) as byte
dim q_out(1 to 10) as byte
dim cmd_in_buffer(1 to 160) as byte
dim cmd_out_buffer(1 to 160) as byte

call OpenQueue(q_in,10)
call OpenQueue(q_out,10)
call OpenCom(1,9600,q_in,q_out)

Do
call GetQueue(q_in,cmd_in_buffer(i),1)
i = i+1

Loop While i < 127
[...]
=================================================
In this case, it works great. It takes a "string" (as byte array), and
count the number of chars... while i < 127.

But if I want to get the string until the last char is "X"?
For example:

=================================================
[...]
Do
call GetQueue(q_in,cmd_in_buffer(i),1)
i = i+1

Loop While cmd_in_buffer(i-1) <> 88
[...]
=================================================

In this case it not works. It spend more time for the last control, so
it losts many chars.
Do you have any suggestions???



(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

Hi. I am not sure I have got it right, but if the problem is the time taken to check for inequality

while cmd_in_buffer(i-1) <> 88

why not trying to replace this line of code with equivalent statements (this is a weak proposal ... I know ...) ? such as

until cmd_in_buffer(i-1) = 88

or

while cmd_in_buffer(i-1) - 88
Would that solve the problem ?

Who knows ? Maybe you will be lucky and these statements will take less time to be executed ... It really depends on how the <> instruction is coded ...Regards

Fabrizio
To: b...@yahoogroups.comFrom: k...@inwind.itDate: Tue, 6 Nov 2007 15:12:32 +0000Subject: [BasicX] get bytes from com ... until special character

Hi guys,I'm new about BX24P. But I've realized a little software that it canget a fixed number of bytes from COM1, extracts some information andgenerates a new byte array that it sends through COM3.Now, really it cannot get a fixed number of byte, but it must get allbytes from COM1 until it receive a special chars (for example, "X" 88decimal).Now I'll show you a portion of the code:=================================================[...]dim q_in(1 to 10) as bytedim q_out(1 to 10) as bytedim cmd_in_buffer(1 to 160) as bytedim cmd_out_buffer(1 to 160) as bytecall OpenQueue(q_in,10)call OpenQueue(q_out,10)call OpenCom(1,9600,q_in,q_out)Docall GetQueue(q_in,cmd_in_buffer(i),1)i = i+1Loop While i < 127[...]=================================================In this case, it works great. It takes a "string" (as byte array), andcount the number of chars... while i < 127.But if I want to get the string until the last char is "X"?For example:=================================================[...]Docall GetQueue(q_in,cmd_in_buffer(i),1)i = i+1Loop While cmd_in_buffer(i-1) <> 88[...]=================================================In this case it not works. It spend more time for the last control, soit losts many chars.Do you have any suggestions???

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(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )

Here is a weak proposal .... but if you are lucky enough it can even make your point ...

How about replacing the time consuming statement

while cmd_in_buffer(i-1) <> 88

with others like

until cmd_in_buffer(i-1) = 88
or
while cmd_in_buffer(i-1) - 88

Regards,

Fabrizio
To: b...@yahoogroups.comFrom: g...@rightime.comDate: Tue, 6 Nov 2007 11:21:42 -0500Subject: Re: [BasicX] get bytes from com ... until special character

> dim cmd_in_buffer(1 to 160) as byte> dim cmd_out_buffer(1 to 160) as byte> Perhaps you've exhausted the stack. Is it necessary for these buffers to be this large? The BX-24 has 401 bytes of available RAM; you've used 320 of that for these variables. That leaves 81 bytes for the system stack and other variables. Depending on your code, that might be insufficient.Try decreasing the 320-byte buffer lengths to perhaps find more success.Tom

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(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )