| ??? 02/02/06 23:29 Read: times |
#109024 - Answers Responding to: ???'s previous message |
Damjan said:
3. I use 11.059 MHz crystal. How do I enter this value since program accepts only integer of MHz? Is this parameter important? You can input all values from '3' to '11'. Damjan said:
4. after all topics I am a bit confused - what is best to use for notebook+5volt applications: LS, HC or HCT chips? Original circuit from Atmel uses 74VHC244. But if pure TTL-signals are delivered from your notebook, then I would recommend to use the alternative decribed here: http://www.8052.com/forum/read.phtml?id=103574 Damjan said:
5. How do I setup lpt port: standard, bidirectional or EPP (ECP)? I use windows2000 with 'ECP' configuration. Damjan said:
6. Is the lenght of the cable important? I want to use about 1.5m of cable. I used some dos program which worked fine under win98. I guess communication there was not so quit. Is there any software that has slower communication? Follow the scheme given here: http://www.atmel.com/dyn/resou...oc3310.pdf and use flat ribbon cable: First wire to pin1 of socket, second wire to pin2, etc. Cable length should be less than 1,5m. Communication is the slower the lower value you input for clock frequency (point 3). If you want slowest communication than input '3', for 3MHz. Kai |
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