5 replies to this topic

[E_net4]

I intended to make a program for 2 calcs (fx 9860G) to send/receive a value via 3pin cable from/to each other. Here's the code:

0 A
0 B
"1. Calc 1"
"2.Calc 2"
For 1 L To 500
Next
While Getkey/=72 And Getkey/=62
WhileEnd
Getkey K
If K=72
Then OpenComport38k
1 C
"Connection On."
"Number"? A
"Sending..."
Send38k A
For 1 L to 20
Receive38k B
B=>Break
Next
Locate 14,1,B
CloseComport38k
"FINISHED"
IfEnd
If K=62
Then For 1 L To 100
Next
OpenComport38k
"Connection On."
"Receiving..."
For 1 L To 20
Receive38k A
A=>Break
Next
Locate 14,5,A
"Number"? B
Send38k B
CloseComport38k
"FINISHED"
IfEnd

Unfortunately, I didn't work. It passed through all steps, but both calculators return 0.

[The_AFX_Master]

Welcome to the UCF

unfortunately, the Send() and receive() commands only work with a PC or a data logging peripheral (EA 200), not with another calculator

[E_net4]

Are you sure? I didn't use Send() and Receive(), I used Send38k and Receive38k.

[E_net4]

So what's the difference between them?

[Horrowind]

I'm not sure, but I think that the 38k commands use the USB Port and the Send/receive commands uses the COM port.

[Manuel Naranjo]

I don't think that's the difference. Mostly sure both commands use the Serial Port (USB port is a mess to use, you can't use it from BASIC code). I would say the difference is related to the speed. 38k = 38000 bauds per second.

I'm not sure, but I would say you can connect two calcs with just a wire, you should just cross the RX TX lines. You have three wires, one is GND (ground). Then you have one wire for TX and one wire for RX. You should make the TX from one calc match the RX of the other and viceversa.