Search found 19 matches

by chava
Thu Oct 02, 2003 2:55 pm
Forum: General Discussion
Topic: RS232
Replies: 3
Views: 1214

Re: RS232

Thanks
by chava
Thu Oct 02, 2003 12:46 pm
Forum: General Discussion
Topic: RS232
Replies: 3
Views: 1214

RS232

Hi, I have the protocol of the RS232 infront of me, but I cannot seem to anderstand something: does DTE means a dumb device or DCE? I have a device who knows how to communicate by RS232 ( USART) and I want to connect it to the PC. should I use stragth or crossed cable?? Im confused someone told me o...
by chava
Thu Oct 02, 2003 2:05 am
Forum: General Discussion
Topic: device 74HC595
Replies: 5
Views: 1721

Re: device 74HC595

(Hi, thats me who asked the Q) Help me Out here, I'm still stuck!<p>The mclr of the 595 (pin 10) is atached to Vcc and the G (pin 13) atached to Gnd. this is not the problem! I realized that, after I write to the device, I turns the pins of the microcontroled to Hi-Z (which means I leave the 595's p...
by chava
Mon Sep 22, 2003 12:02 pm
Forum: General Discussion
Topic: device 74HC595
Replies: 5
Views: 1721

device 74HC595

Hi, I'm new here, so Hello everybody! I have a circuit in which a microcontroler controls over the outputs of a part, named 74HC595 . The micro is programmed. This part, 74hc595, is a shift register with latch and output enable. Untill now, we mounted the device, manufactured by Texas Instrument (TI...