| ??? 08/07/07 22:12 Read: times |
#142909 - Breadboard correction Responding to: ???'s previous message |
Ralph Sac said:
Hi Rubem:
Most bread boards of this type for gnd and power must have a jumper every 5 pins in series with next 5 pins. So you really can only use 4 pins of bus on gnd and power. So if this is the case with your bread board you have many opens on your proto type according to pictures I am looking at. Check contineity between each 5 pin series gnd and power. Let members know what you find out. Excellent pictures! Best regards, Ralph Sac Hi Rubem: Double check information I gave sorry the bread board I found in garage from radio shack had continuity on gnd plane and power plane from pin 1 to pin 50. Sorry about misinformation. I still like know how you programmed 89c2051 as I have temped on bread board and they always work. You should write very small program to osillate only one pin or light one led to make should your chip ok. Using working program from similar chip is not very good test. If you can give information exactly how you programmed chip. A 89c2051 can never be programmed in binary! Only intel hex format. I hope this helps with your problem. Reread docs on 89c2051 programming. Best regards, Ralph Sac |
