Sending and Receiveing problems - RS232

[John-G]

Here is a little code that i made up. What am i doing wrong here .. ( just testing so dont yell to much )
It is just a little Example that I am showing just to see how the rs232 works
it opens the Com no problem, the sends a FA; Sending that command to answer what Freq it is on
then "Result = AvailableSerialPortInput(1)" result always reads 0 ( I should get 14 ) to show nothing to get
If i run a rs232 Port Monitor i see:

" 46 41 30 30 30 35 30 31 34 30 31 38 30 3B FA00050140180;"

but if i start Hyper-Terminal and set the com the same way i get the answer back that was setting in the buffer?
" FA00050140180; "

I have played with this for 2 days and i cant see what i am doing wrong

Code: Select all

Define.l read_amount, incoming = AllocateMemory(1024)

If OpenSerialPort(1, "COM1", 9600, #PB_SerialPort_NoParity, 8, 1, #PB_SerialPort_NoHandshake, 1024, 1024)
	
	MessageRequester("Information", "SerialPort opened with success")

Else
	MessageRequester("Error", "Can't open the serial port: "+Port$)
EndIf

Delay(1000)

WriteSerialPortString(1, "FA;")

Delay(1000)

Result = AvailableSerialPortInput(1)


Delay(1000)

Debug Result

Delay(1000)

   For a = 1 To Result

      read_amount = ReadSerialPortData(1, incoming, Length)
      
      Delay(1000)
      
      Debug PeekS(incoming, read_amount)
   Next a

End

Thanks John_G

[KGB_X]

is it a Kenwood you are trying to "talk" to? If so what model?

If the "AI" command is on then you are probably getting other data.

So first try to send "AI0;" to turn off auto information. I think you also have to read until you get a linefeed.

Now you are sure that the only data coming from your radio is when you have issued a request.

73 de LA3QMA

[John-G]

It is a Kenwood ts-2000x and a AI0 is ok but i can read it with Hyper-Terminal with no problem .. I can live with what i get for now .. just get it to read i will be happy.. N3ovo

[John-G]

is it a Kenwood you are trying to "talk" to? If so what model?

If the "AI" command is on then you are probably getting other data.

So first try to send "AI0;" to turn off auto information. I think you also have to read until you get a linefeed.

Now you are sure that the only data coming from your radio is when you have issued a request.

73 de LA3QMA

no good i tryed it .. i and sent commands and turn on the radio i just can read from it .. here is what i tried again. it turn on the radio but no info back. then opened up Hyper-Terminal and again i got want i needed .... hummmmmm :roll:

Code: Select all

       ; Syntax
       ; Result = OpenSerialPort(#SerialPort, SerialPortName$, Bauds, Parity, Data, Stop, HandshakeMode, InputBufferSize, OutputBufferSize)

    If OpenSerialPort(0, "COM1", 9600, #PB_SerialPort_NoParity, 8, 1, #PB_SerialPort_NoHandshake, 1024, 1024)
       
       Define.l is_there_data_to_read, read_amount
       Define.l timeout_now, timeout_max = 5000
       Define.l incoming = AllocateMemory(1024)
       
       If incoming
       
        Delay(5)
           WriteSerialPortString(0, "PS1;")
            Delay(500)
            WriteSerialPortString(0, "PS1;")
 
          Delay(10000)
          
           WriteSerialPortString(0, "AI0;")
          WriteSerialPortString(0, "FA;")
           WriteSerialPortString(0, "AI0;")
          
          Repeat
             Delay(10) : timeout_now + 10
             is_there_data_to_read = AvailableSerialPortInput(0)
          Until is_there_data_to_read Or (timeout_now => timeout_max)
          
          If is_there_data_to_read
             read_amount = ReadSerialPortData(0, incoming, Length)
             Debug PeekS(incoming, read_amount)
          Else
             Debug "timeout reached / no data to read"
          EndIf
          
          FreeMemory(incoming)
          
       EndIf
       
    Else
       Debug "couldn't open com"
    EndIf

[KGB_X]

ahh so you dont get a response...

This should work as i just tested it on my TS2k

Code: Select all

Define.l read_amount, incoming = AllocateMemory(1024)

;If OpenSerialPort(1, "/dev/ttyS1", 9600, #PB_SerialPort_NoParity, 8, 1, #PB_SerialPort_NoHandshake, 1024, 1024)
If OpenSerialPort(1, "COM1", 9600, #PB_SerialPort_NoParity, 8, 1, #PB_SerialPort_NoHandshake, 1024, 1024)

   Debug "serialport opened ok"
Else
   MessageRequester("Error", "Can't open the serial port: "+Port$)
End
EndIf

If IsSerialPort(1)
  result=WriteSerialPortString(1, "FA;"+Chr(13))
  Delay(100)
  x=AvailableSerialPortInput(1)
  Text2.s =""
  Buffer$=""
  While AvailableSerialPortInput(1)>0
    If ReadSerialPortData(1, @Buffer, 1) ; Read Byte
      Text2.s = Text2.s + Chr(Buffer)
    EndIf
  Wend
  
result$ = Mid(RemoveString(Text2.s,Chr(13)),4)
Debug result$

Else
  Debug "ERROR"
EndIf

End

[KGB_X]

you need to enter a CHR(13) after the commands..

[John-G]

Hummm ok the port opens but nothing ... hummmmm thanks for the help any thoughts?

ahh so you dont get a response...

This should work as i just tested it on my TS2k

Code: Select all

Define.l read_amount, incoming = AllocateMemory(1024)

;If OpenSerialPort(1, "/dev/ttyS1", 9600, #PB_SerialPort_NoParity, 8, 1, #PB_SerialPort_NoHandshake, 1024, 1024)
If OpenSerialPort(1, "COM1", 9600, #PB_SerialPort_NoParity, 8, 1, #PB_SerialPort_NoHandshake, 1024, 1024)

   Debug "serialport opened ok"
Else
   MessageRequester("Error", "Can't open the serial port: "+Port$)
End
EndIf

If IsSerialPort(1)
  result=WriteSerialPortString(1, "FA;"+Chr(13))
  Delay(100)
  x=AvailableSerialPortInput(1)
  Text2.s =""
  Buffer$=""
  While AvailableSerialPortInput(1)>0
    If ReadSerialPortData(1, @Buffer, 1) ; Read Byte
      Text2.s = Text2.s + Chr(Buffer)
    EndIf
  Wend
  
result$ = Mid(RemoveString(Text2.s,Chr(13)),4)
Debug result$

Else
  Debug "ERROR"
EndIf

End

[KGB_X]

check that DTR and RTS are correct if not you wont receive anything..

i'm back on sunday but you have probably solved the problem before that time...

[John-G]

Ok i put a break point at the bottom ( the Last Endif ) and the looked at

x=AvailableSerialPortInput(1) and got a 0 for input

[John-G]

check that DTR and RTS are correct if not you wont receive anything..

i'm back on sunday but you have probably solved the problem before that time...

I dont know about getting to work .. but thanks for you help i added this to your code

Delay(5)
WriteSerialPortString(1, "PS1;")
Delay(500)
WriteSerialPortString(1, "PS1;")
Delay(10000)

then turned it off and watch it turn on and work so ... Still stuck but still working on it .. thanks again for your help

[KGB_X]

You dont need all the delays.

Kenwood radios are within 100ms

try this before sending commands:

Code: Select all

SetSerialPortStatus(sid,#PB_SerialPort_RTS,1|2)
Delay(100)
SetSerialPortStatus(sid,#PB_SerialPort_DTR,0)
Delay(100)
SetSerialPortStatus(sid,#PB_SerialPort_TXD,0)

[John-G]

you are the Best ... thanks thanks thanks thanks thanks .. it is working .. i can get it from here .. Some day i hope i can help you on somthing

[KGB_X]

hehe no problem... took me some time to control my TM-D700 when i first started using PureBasic.