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Hal Albach
09/15/12 16:58
Read: 480 times
Seminole, Florida
USA


 
#188342 - Why would you want to
Responding to: ???'s previous message
invest all your time and resources and build your own developement board when you said yourself that you are new to interfacing memories to a microprocessor? Michael and Erik have already suggested looking into a developement board using Silabs chips. The C8051F120 has internal 128K of Flash program memory and also has 8K of internal SRAM, all of which runs at full cpu speed. For I/O it comes with eight 8-bit ports. The included debug adapter allows you to program and debug the device without any additional hardware. With a Silabs developement board you will spend most of your time developing your application, not trying to figure out why your home-built board is not working as you think it should.

By the way, the EA pin on the microprocessor is used to determine if internal or external program store is being used. But with all the devices available with 64K or more of Flash program memory, why use an external program memory? Also, a good EEPROM programmer is going to cost you money better spent on a good, professional developement board.

Hal

List of 28 messages in thread
TopicAuthorDate
Nokia 3310 display [PCD8544] dot problem      Samarth Godara      09/14/12 08:02      
   NOTE-      Samarth Godara      09/14/12 08:32      
      Graphics Displays      Michael Karas      09/14/12 09:10      
         memory management      Samarth Godara      09/14/12 09:31      
            it would not      Erik Malund      09/14/12 09:50      
               more help      Samarth Godara      09/14/12 10:30      
                  Search engines?      Per Westermark      09/14/12 12:20      
                     confused      Samarth Godara      09/14/12 13:13      
                        No exact answer      Per Westermark      09/14/12 13:36      
                        Type of Thinking      Michael Karas      09/14/12 14:34      
                           I second that      Erik Malund      09/15/12 08:05      
                              doubt - interfacing memory with 8051      Samarth Godara      09/15/12 11:52      
                                 Why would you want to      Hal Albach      09/15/12 16:58      
                                    Don't overlook the "extras"      Richard Erlacher      09/15/12 20:29      
                                    why to use my own design      Samarth Godara      09/15/12 20:47      
                                       which is corect, but      Erik Malund      09/16/12 06:44      
                                       Wrong approach for India        Kalpak Dabir      09/16/12 06:50      
                                          my approach + new doubt [start execution]      Samarth Godara      09/16/12 09:06      
                                             Perhaps you've overlooked some options      Richard Erlacher      09/16/12 12:44      
                                                my circuiting & a Really surprising, Good Board      Samarth Godara      09/16/12 23:00      
                                                   Not all 805x variants are the same       Richard Erlacher      09/17/12 01:54      
                                                   Besides 8051 there are other....      Kalpak Dabir      09/17/12 02:00      
                                                   BEWARE      Erik Malund      09/17/12 07:38      
                                                      Shortest path      Per Westermark      09/17/12 09:05      
                                                   use direct wiring when using point-to-point      Richard Erlacher      09/17/12 09:30      
                                 Are you determined to fail?      Erik Malund      09/15/12 19:41      
                           SiLabs isn't the only possible solution      Richard Erlacher      09/15/12 20:22      
                        Have you considered the datasheet(s) and 8052.com's search?      Richard Erlacher      09/15/12 20:17      

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