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 11:45
Read: times


 
#84567 - Yes, but
Responding to: ???'s previous message
Darek Rogowski said:
Can I use extarnal SRAM as a code memory and internal code memory in one time?

Yes, but note that the 8051 has no instruction to write to CODE memory.

Therefore, you will need special hardware and/or a variant with special facilities to map the SRAM between CODE and XDATA space.

Zylogic (nee Triscend) is one such.

But, if you're using external SRAM, you will need an external parallel memory interface anyway - so why not just use an external parallel Flash device?

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