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

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
01/08/05 15:27
Read: times


 
#84578 - Answer partially wrong: Can't Write CODE
Responding to: ???'s previous message
Jan Waclawek said:
However, there are also other options worth considering:
- you don't need "resetting"and remapping your code; you can have your external code memory (SRAM) mapped above the internal code memory and run it from there; after loading the code you simply jump to the external code.


But, The 8051 has NO instruction to write to CODE space!
That's why you DO need to re-map the SRAM into XDATA space, in order to be able to load the code into it!

List of 19 messages in thread
TopicAuthorDate
Use SRAM as code memory.            01/01/70 00:00      
   Yes, but            01/01/70 00:00      
      thanks for answer            01/01/70 00:00      
         ibid            01/01/70 00:00      
         There are so many options...            01/01/70 00:00      
            Answer partially wrong: Can't Write CODE            01/01/70 00:00      
               No need for switching            01/01/70 00:00      
                  Oh yes...            01/01/70 00:00      
                     Take care - wherewer your code is :-)            01/01/70 00:00      
                        Once again thanks            01/01/70 00:00      
                        Self-modifying code            01/01/70 00:00      
                           Self-modifying code - good or bad            01/01/70 00:00      
                              Self-modifying code            01/01/70 00:00      
   90:10 rule            01/01/70 00:00      
   In System Programming Application Note            01/01/70 00:00      
      In-System v. In-Application Programming            01/01/70 00:00      
         IAP v ISP            01/01/70 00:00      
            Philips IAP            01/01/70 00:00      
               It's easier with Atmel            01/01/70 00:00      

Back to Subject List