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how can i program the COM2 of the reader

changuel khemaies

hello,
with Com1 there isn't any problem.
with Com2 there is a problem.

SERIAL_PARAM Com1Cfg;   
BYTE res ;					Com1Cfg.Port = G_COM1; 
	Com1Cfg.Speed = 38400;  
	Com1Cfg.CharSize = 8;   
	Com1Cfg.Parity = FALSE;  
	Com1Cfg.Cwt= 0xFF; 
	Com1Cfg.Bwt = 0xFF ; 
res = SerialOpen(&Com1Cfg, &ucPortId); 
 read( ....
....
write(....
.....
when i replace G_COM1 par G_COM2
there isn't any reaction with the reader
thanks