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- Hyperterminal setup problems serial#
- Hyperterminal setup problems software#
- Hyperterminal setup problems Pc#
Of course all buffers are limited, and eventually any buffer will overflow if the input is continuous.
Hyperterminal setup problems Pc#
Another solution is to set up a large circular buffer in the PC so that you can afford to fall behind. That depends on whether or not the transmitting PC is set up to respond properly to X-ON/X-OFF handshaking.
Hyperterminal setup problems software#
One is to use X-ON/X-OFF software handshaking to make the transmitting PC pause whenever it starts getting ahead. This could have caused the problem you described. So if 9601 characters came in during the time when you could only send out 9590 characters, then you must have missed about 11 characters. That means over the same 10 second period, you will only be able to send 9590 characters. But due to variations in crystals and the approximations used in baud rate settings, your transmitting baud rate is actually 9590 baud. Now suppose your PIC is sending out that same data to the other PC at 9600 baud. That means with continuous sending, there will be 9601 characters sent in a 10 second period.
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So suppose data is coming in at 9601 baud. So when it is set to transmit at 9600 baud, it could actually be 9601 baud or 9599 baud. If you are receiving data from a PC, then that PC is determining the timing.
Hyperterminal setup problems serial#
Serial communication is timed by the transmitter. Find a more appropriate way to handle whatever situation you think needs handling. If you do, then will likely lose bytes from the serial input. There should never be a need to reset the CPU to solve some problem in serial communication. It is requested that please give me detailed reply of above mentioned problems Due to avoid messege "Bad value data " from hyper terminal I want to reset PIC because I think this problem is due to percent error in serial communication of PIC.Ģ) HyperTerminal is uses for sending and receiving data from PIC.Ĥ) File transfer protocol used in HperTerminal is Zmodem.ĥ) Connections of serial cable that connects PIC with PC are null Modem connections. Problem: 1 and Problem: are interrelated. Some times hyperTermional shows messege "Connection timed out" and this messege is repeated five to 10 time during receiving of file of size 100KB. The Second PC receiving this data through its PORT D and send this data to second PC serially.Īfter receiving 10KB HyperTerminal shows Messege " Bad Data value".
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One PC sends data serially to first PIC then this PIC sends this data to second pic trough PORT D. Problem: 2) An other problem is this that i am sending a file of size 100 KB from serial port of one PC to serial port of another PC through two PICs ( PIC16F877A). I want to tknow that because of this reset, PIC will lose data or not during continuous serial communication at baud rate 9600? I want to know that what time this instruction takes : and what type of this reset is ? Due to avoid error percent error in serial communication of PIC, I want to reset PIC after receiving specific number of bytes during continuous serial communication. Problem: 1) I am using PCWH 3.242 CCS compiler.
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Serial communication Problem with file of size 100KB