Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
12/07/07 09:10
Read: times


 		 #147968 - Does it intended...
Responding to: ???'s previous message
Nimish Dave said:

I am not even able to manage for 89c51 and 89c2051.One way which i thought was to use 74HC245.Which is in high impedance state when other connection are not required.But I found that two octal buffers were required.
How does these universal programmer manages this problem ?


Does this intended that I was going for parallel Universal programmer designing. I just wanted to know how such a difficult task is handled.I never heard about "Pin Drivers" nor I know any thing about FPGA.As I searched for circuit diagrams of universal programmer but was not able to find,just a curiosity to the science behind that.Sometimes reverse engineering help understand things better.I do agree that ISP is better to work with.







List of 35 messages in thread
TopicAuthorDate
Universal programmer            01/01/70 00:00      
   with lots of circuitry            01/01/70 00:00      
   Programble hardware            01/01/70 00:00      
      possibly, but what good would that do you ?            01/01/70 00:00      
      Yes, but not a the required voltages and currents            01/01/70 00:00      
      Yep FPGA is involved            01/01/70 00:00      
   Recently discussed...            01/01/70 00:00      
   Falling at the first hurdle            01/01/70 00:00      
      RE:Falling at the first hurdle            01/01/70 00:00      
         communication            01/01/70 00:00      
         If you need to ask the question...            01/01/70 00:00      
         Oops - replied to wrong message.            01/01/70 00:00      
   This isn't so ... It's true only at the "low-end".            01/01/70 00:00      
      is the new algorithms on the web?            01/01/70 00:00      
         Well, I got them indirectly from the www            01/01/70 00:00      
   pipedreams            01/01/70 00:00      
   Tube tester vs Universal programmer            01/01/70 00:00      
      that's totally crazy            01/01/70 00:00      
         Atmel ICSP or..            01/01/70 00:00      
            one more - these pop up every darn time            01/01/70 00:00      
               Universaly Blocked            01/01/70 00:00      
                  trying new things out?.            01/01/70 00:00      
                     Think a bit Deeper            01/01/70 00:00      
                        staying on the subject            01/01/70 00:00      
         some words about semantics            01/01/70 00:00      
            what is a "KANDA cable"            01/01/70 00:00      
               KANDA cable is            01/01/70 00:00      
   Does it intended...            01/01/70 00:00      
      consider the device's role            01/01/70 00:00      
      what a surprise            01/01/70 00:00      
   bravo for ISP            01/01/70 00:00      
   You have to narrow the scope            01/01/70 00:00      
      Conclusions            01/01/70 00:00      
         just adding to the complexity            01/01/70 00:00      
         it looked as though he wants a production tool            01/01/70 00:00      

Back to Subject List