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cmmffhc
08-24-05, 11:13 PM
Hi,

I am using an Isopod to interface 2 cameras and they both need RS232 ports.

I read from the website that there are 2 RS232 channels for Isopods. However, from the Isopod manual, I can only see 1 RS232 port.

Can anyone help me out with locating the other port? or is there a only 1 RS232 port on the Isopod?

Regards

nmitech
08-25-05, 09:33 AM
By default, there are two RS-232 ports available on IsoPod_V2, IsoPodX, and ServoPod.

For the IsoPod, the Primary RS-232 port is brought out to J1 pin 1(SOUT0), 2(SIN0), 5(GND). The second one is brought out to J4 pin 5(GND), 7(SIN1), 9 (SOUT1).

SINx: Serial Input to the target board. RS-232 signal
SOUTx: Serial Output from the target board. RS-232 signal

Note:
J1 numbering is based on the 24 pin DIP socket,
01 24
02 23
03 22
04 21
05 20
... ...
... ...
12 13

where J4 numbering is based on the standard dual connector pin,
01 02
03 04
05 06
07 08
09 10

cmmffhc
08-25-05, 11:06 PM
Hi,

The pins on J1 are also used for communications with the computer.

I suppose it would not be a problem to actually program the Isopod code into ROM and then reconnecting the other camera to the port on J1? WOuld there be any problems? I would use the J1 pins as I would the same as any other RS232 ports right?

Regards

nmitech
08-26-05, 10:08 AM
No problem to use SCI0 for program development, or application that needs to interface with other serial device.

I found this thread is very helpful on how to use the SCI0, especially it discussed about foreground & background operation which may related to your application as well,
http://www.newmicros.com/discussion/showthread.php?t=832