LabVIEW
Problem Labview receiving data continuously
when you want to "receive" the answer more than once you have to:
- use a loop around the "read serial port" -part (you don't need to branch the wires before the second case structure!)
- read once and output more than once (e.g. when there is no new data available) - also requiring a loop
Does your wireless device send the answer more than once? Usually devices only send just one answer...
Well, you don't seem to have much problem continuously posting.
In order to write and read continuously, you are going to need a while loop. What you've posted is nothing more than a shipping example. What exactly are you going to do? Is one pc going to do nothing but send and another pc just do a read? If that's the case, then you are going to have to separate the write and read into separate VIs. In the read VI, you should use the VISA Bytes at Serial Port and do the VISA Read only when data is available.
Well, you don't seem to have much problem continuously posting.
In order to write and read continuously, you are going to need a while loop. What you've posted is nothing more than a shipping example. What exactly are you going to do? Is one pc going to do nothing but send and another pc just do a read? If that's the case, then you are going to have to separate the write and read into separate VIs. In the read VI, you should use the VISA Bytes at Serial Port and do the VISA Read only when data is available.
sorry, internet is down..sory for the late..
Actually, my project is wireless RS232 receiver. my part is only the receiver part. U are right, that one pc is doing nothing and juz read. and the other pc is to sending msg or data to the receiver. You are correct, because i should have the separated read and write. Im using the maxstream as the hardware. the hardware i have been ordered. Before waiting the hardware arrived, i have doing the serial loop back to test my program. i also need the transmiiter part in order to test the receiver can received or not. My friend is doing the transmitter part
Well, you don't seem to have much problem continuously posting.
In order to write and read continuously, you are going to need a while loop. What you've posted is nothing more than a shipping example. What exactly are you going to do? Is one pc going to do nothing but send and another pc just do a read? If that's the case, then you are going to have to separate the write and read into separate VIs. In the read VI, you should use the VISA Bytes at Serial Port and do the VISA Read only when data is available.
sorry, internet is down..sory for the late..
Actually, my project is wireless RS232 receiver. my part is only the receiver part. U are right, that one pc is doing nothing and juz read. and the other pc is to sending msg or data to the receiver. You are correct, because i should have the separated read and write. Im using the maxstream as the hardware. the hardware i have been ordered. Before waiting the hardware arrived, i have doing the serial loop back to test my program. i also need the transmiiter part in order to test the receiver can received or not. My friend is doing the transmitter part
put the read part in a while loop, make a shift register in the loop, add the received string to the shift register to keep previous messages...
