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31 Threads found on 8051 Eprom
It doesn't work. I had by mistake selected hex file for 8051. See attached file. LED turns off but doesn't blink. Some logic Contention errors in Proteus.
This Circuit is from the book "8051 Microcontrollers and Embedded System Using: Assembly and C" by Mazidi, Page 375. The Circuit Connection are ok but I am getting logic contentions message in Proteus and it is not working? I am attaching mikroC PRO 8051 files + Proteus file. Does the access time of eprom causing logic contentions? The LED (...)
hey guys i wanted to know how to burn programcode into an external eeprom ,do we have to build a separate circuit for studyin 8051 from mazidi and they havent specified anything about it :?:
Generally speaking the 8051 only has ROM (non-programmable). The 8751 had the eprom. The connector is probably for a 28 pin eprom that would allow for development with an eprom while there is no internal ROM on this particular part. I have not seen this in an 8051 variety that I can remember, but I actually (...)
I have a schematic of 8051 interfacing with 6264 below, but I think it's problem. Could anyone to tell me what the problem with my schematic you !
Dear Friend, Sorry, is me again. I have writen a 8051 code to access AT24C512 data. BTW, I found my program only can read FFH from the eprom when I using EMU board, but I already burned a bmp file into the Eeprom. Hence, I think my program have bug. The below is my code. can someone help me to find out the program?? Thanks a (...)
The exact location of lock bits in 8051-derivatives which have them is undisclosed .. They are somewhere in the program memory (Flash, eprom or OTP) and you can find in data sheet of a particular derivative how to program, read or erase (only together with program memory, if applicable) them .. see example below .. Regards, IanP
Always the machine cycle is clock/12, as 89S52 is standard speed part. There is not difference in execution time if the program is located in the internal rom or in external!!! Every instruction takes a number of cycles to execute according datasheet. There is no delay if you use external eprom in standard parts. Some fast 8051 cores add wait stat
I have a problem in interfacing the 27c1001 eprom with the 8051 microcontroller,,actually i dont understand alot from its datasheet,plus that the hardware connections arent clear. My code progrom is on chip,,and the data to be fetched is off chip on the eprom,shall the EA be connected to VCC or GND? :cry: My task is simply writing a data by
i want to know how to interface one mb(2 x 512kb) eprom 8051.... kindly help me out... this is my project work...
8051 --> 4k x 8 ROM(eprom ..), 128 x 8 RAM, Two 16-bit counter/timers 8052 --> 8k x 8 ROM(eprom ..), 256 x 8 RAM, Three 16-bit counter/timers Other features are identical .. Regards, IanP
Go to: It is 8051-base single board computer with a lot of peripherials including eprom, LCD display, ...... Regards, IanP
Go to this site: There you will find AT89C52 programmer. You can use the same programmer to program DS87C550 or any other 8051-core microcontroller with eprom. In your case you will need to build a ZIF adapter 40-pin 8051-to-87C550. Connect only these pins which are used in programming. If you have problems - co
i m using eprom 27C256 with 8051 microcontroller . plz give me a very basic code for doing this . plz also specify the diagram for interfacing . give me a small code for displaying any number on microcontroller port using eprom for code storage
This extracted figure of the book The 8051 Microcontroller ARCHITECTURE, PROGRAMMING, and APPLICATIONS Kenneth J. Ayala contains the hardware that you request. Regards
i am newer for designing usb2.0 interface. i am going to use the cy7c68013 chip to transfer 1k1k image data after ad, the ad is 12 bit, i can't know how to use cy7c68013 correctly. such as to use the internal fifo? 2. how to connect the data to cy7c68013? 3. how to run the 8051 core, loading by e?prom or by cpld? hope geting help, tha
Hi... anybody have a document or a circuit for how to program multiple 8051 uc's i searched on the net ...and still searching.... Thanks Sadashiv
Dear friends! I'm using at89c52 & I want to know how can I interface it with external memory . I'm looking for examples written in C language. thanks in advance!!!
hi : can guide me to easy 8051 programmer
Hi. These links might help you. h**p:// Bye