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| My serial LCD for displaying directions |
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| Rawker:
maybe i should try that, the manual says the usb has a 5v and a gnd so i'll try hooking it up to that edit: got it working, now to figure out how to send files to it edit #2: i'm having trouble sending files to it, i tried everything in the thread and i can't seem to get anything to display on the screen. I know the screen works because i can adjust the screen's contrast level or brightness or whatever it is. anyways if anyone has the time to help me out my icq is 118287640 as i can't seem to figure out what the problem is. i tried the stuff BobBorakovitz posted configured the ports like maraxle said i tried both of my comps and no luck and the only thing i can think of is that it's my cable which is http://www.radioshack.ca/estore/Product.aspx?language=en-CA&product=2600117&category=Parallel+%26+Serial&catalog=RadioShack |
| Rawker:
btw i get this error when trying copy test.txt com1 in >run>cmd> "The handle is invalid. 0 file(s) copied." bump do you think i have to do this? "but the cable is a 9 pin serial cable that allows pins 2, 3, and 5 to go straight through, connects pins 1, 4, and 6 together on the PC end, and connects 7 and 8 together on the PC end. Pin 9 is unused. The reason for connecting the pins together on the PC end is to ensure that it always has a DSR/DTR signal and a CTS/RTS signal. This is not necessary on XP, however, as it appears to be more forgiving of the serial communications standards than DOS and Win98 are..." |
| maraxle:
What OS are you using? If it's not XP (or maybe 2000, haven't tested), you need the custom cable. Also, run a "mode" command before you try copying the file for the first time. I think that's mentioned somewhere else in this thread too. |
| Rawker:
i'm running windows xp i tried the "mode" command and here's what i got: Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\default>mode Status for device LPT1: ----------------------- Printer output is not being rerouted. Status for device COM1: ----------------------- Baud: 19200 Parity: None Data Bits: 8 Stop Bits: 1 Timeout: ON XON/XOFF: OFF CTS handshaking: ON DSR handshaking: OFF DSR sensitivity: OFF DTR circuit: ON RTS circuit: HANDSHAKE Status for device COM2: ----------------------- Baud: 1200 Parity: None Data Bits: 7 Stop Bits: 1 Timeout: OFF XON/XOFF: OFF CTS handshaking: OFF DSR handshaking: OFF DSR sensitivity: OFF DTR circuit: ON RTS circuit: ON Status for device CON: ---------------------- Lines: 300 Columns: 80 Keyboard rate: 31 Keyboard delay: 1 Code page: 437 C:\Documents and Settings\default>copy desktop\test.txt com1 The handle is invalid. 0 file(s) copied. C:\Documents and Settings\default> |
| maraxle:
Hmmm... My com1 looks like this: Status for device COM1: ----------------------- Baud: 19200 Parity: None Data Bits: 8 Stop Bits: 1 Timeout: OFF XON/XOFF: OFF CTS handshaking: OFF DSR handshaking: OFF DSR sensitivity: OFF DTR circuit: ON RTS circuit: ON If you can make yours look like that using some of the mode command line switches, you should have no problem. If you type "mode /?" it'll give you a list of the available switches to try. It'll end up looking something like this (all on one line): mode com1: baud=19200 parity=n data=8 stop=1 dtr=on rts=on octs=off odsr=off |
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