Hello, I want to get started on an 8051 project. I already know C. What I am looking for is an 8051 eval board that comes with a C compiler,...

Hello, I want to get started on an 8051 project. I already know C. What I am looking for is an 8051 eval board that comes with a C compiler, flash burner, code debugger, etc... In other words, I want to develop some basic, generic 8051 code in C, compile, link, download it into eval board and then debug/run it. I do not need any of the new flavors of the 8051. Any ideas where I can pick o...

If anyone can tell me when to use AVR and when to 8051. We all have known that AVR has fine instruction set and is much faster than...

If anyone can tell me when to use AVR and when to 8051. We all have known that AVR has fine instruction set and is much faster than 8051. During product developing, what make you choose 8051? Any comment is appreciated. Thanks

Hi, I have an 8051 controller that communicates over RS485 to other 8051 controller. The communication is half-duplex at baud of 57600, and...

Hi, I have an 8051 controller that communicates over RS485 to other 8051 controller. The communication is half-duplex at baud of 57600, and it works great. So far so good. Lately, I'm trying to make the 8051 device talk with a PC, since it is 57600 and I have RS232 RS485 converter this should be simple. I'm encountering strange problems at the 8051 reception, I never received what I se...

Greetings all 8051 Gurus, I am familiar with 8051 for some years now. I even did my graduation project work over it. That time however all...

Greetings all 8051 Gurus, I am familiar with 8051 for some years now. I even did my graduation project work over it. That time however all the resources were available at school and all I used at that time was hand coded ASM and an universal programmer. How I managed without a board I still get baffled. ;-) But now, the fire to develop over 8051 has be kindled again and I want to reliv...

I am looking for a good source in 8051-c programing. I have studied a book about C programing and also a book about microcontroller...

I am looking for a good source in 8051-c programing. I have studied a book about C programing and also a book about microcontroller 8051 programing, but it seems now I need a book which relates c programing to 8051 and specializes c programing for 8051 controller. my first preference is a free book which access will be easy and soon.then virtual classes and trainers. if any body has any inf...

I need to send short RF messages (approx: 2 bytes) between 8051 devices. How do I make sure that the messages are not tampered and that the...

I need to send short RF messages (approx: 2 bytes) between 8051 devices. How do I make sure that the messages are not tampered and that the message really came from the device? I was thinking of using CMAC AES. But found out that AES isn't efficient on 8051. How do I generate untamperable messages in 8051? Thanks

I Design A Circuit With 8051 And MT8888.This Circuit Is Working With This Way That Write Below. At First I Initialize MT8888 Upon Its Datasheet...

I Design A Circuit With 8051 And MT8888.This Circuit Is Working With This Way That Write Below. At First I Initialize MT8888 Upon Its Datasheet With 8051 And Then Initialize It For The State That Wait For A Ringing Of Telephone ,I work with INT0 Of 8051 And Connect Interrupt Pin Of MT8888 To INT0 Pin Of 8051. There Is An Interrupt Routine In 8051 That Works In 2 Way.When Call Progeress Or DT...

Hi All, I'm a beginner and I'd like to start from 8051 . as I can see-the only cheap boards with jtag are from silabs, right? there are a few of...

Hi All, I'm a beginner and I'd like to start from 8051 . as I can see-the only cheap boards with jtag are from silabs, right? there are a few of them for about 70$ , which one should I buy? will I be able easily move my code to other 8051 mcu like ats89s? thanks.

Are there any recommendations for 8051 DeviceNet driver source code for a slave device? We are presently using Silicon Labs 8051 and the Keil...

Are there any recommendations for 8051 DeviceNet driver source code for a slave device? We are presently using Silicon Labs 8051 and the Keil compiler and tools. Silicon labs had a link to a supplier but they are no longer support the Silicon Labs 8051 for some reason. I don't mind paying for quality. Thanks, Peter Nachtwey

Visit 8051.duenna.science for Keil C software modules for 8051/ 8052 microcontrollers. https://8051.duenna.science

Visit 8051.duenna.science for Keil C software modules for 8051/ 8052 microcontrollers. https://8051.duenna.science

Robert Adsett wrote: > BTW the distinction I always heard between microcontroller and > microprocessor was the microcontroller did not...

Robert Adsett wrote: > BTW the distinction I always heard between microcontroller and > microprocessor was the microcontroller did not have an external bus and > the microprocessor did. That would make an 8051 a microprocessor. as a rough guide to usage, Google has it's advantages: 19,200 hits for "8051 microprocessor". 116,000 hits for "8051 microcontroller" So "8051 micro

Robert Adsett wrote: > BTW the distinction I always heard between microcontroller and > microprocessor was the microcontroller did not...

Robert Adsett wrote: > BTW the distinction I always heard between microcontroller and > microprocessor was the microcontroller did not have an external bus and > the microprocessor did. That would make an 8051 a microprocessor. as a rough guide to usage, Google has it's advantages: 19,200 hits for "8051 microprocessor". 116,000 hits for "8051 microcontroller" So "8051 micro

Hi Folks I am looking at developing a new application, that I hope I can do using an 8051 derivative. Two main requirements that I have are...

Hi Folks I am looking at developing a new application, that I hope I can do using an 8051 derivative. Two main requirements that I have are that it be pretty damn fast (50-100MHz) and have I2C. Also around 6-ish external interrupts and port for RS232... Have been looking also at using a RTOS....but this is not fixed in stone. I am quite familiar with the 8051 and the keil uvision IDE ...

Hi all 8051 Gurus, I am new to this group and to 8051 as well. I tried to connect a ps/2 keyboard to my 8051 board with lcd(hd44780, 2x16) and...

Hi all 8051 Gurus, I am new to this group and to 8051 as well. I tried to connect a ps/2 keyboard to my 8051 board with lcd(hd44780, 2x16) and wrote a program to print the ascii character of the key pressed on lcd. I could detect the make code and getting the key pressed but the break codes or some other stuff adds some funny character after the real one. How to avoid that ? and what should ...

Hi there - I am stuck developing code for 8051 uCs. We have been using the Dunfield compiler, but it looks like we are going to be...

Hi there - I am stuck developing code for 8051 uCs. We have been using the Dunfield compiler, but it looks like we are going to be moving towards a more complete compiler. I have been using the 1K demo of Keil, and it seems to be decent. I've run into a bug or two, but no deal breakers just yet. I've used IAR's Embedded Workbench for ARMs, but have yet to play around with their 8051 tools. Th...

I am sorry if this post is off topic, Just wondering is there job market for programmer of 8051 compatible now ? I am not programmer, just doing...

I am sorry if this post is off topic, Just wondering is there job market for programmer of 8051 compatible now ? I am not programmer, just doing 8051 program for fun. Just curious can I make a living on my hobby in case. (Of course I understand my programming skill is far from professional yet)

Get Keil C source-code for 8051/8052 project from the updated 'Murray's Homepage' at https://8051.duenna.science/ If you find something useful,...

Get Keil C source-code for 8051/8052 project from the updated 'Murray's Homepage' at https://8051.duenna.science/ If you find something useful, then please spread the word.

Hi Is it just me or is the Baudrate setting of a 8051 core really so limited? I have a 8051 compatible controller with 13MHz Osc...

Hi Is it just me or is the Baudrate setting of a 8051 core really so limited? I have a 8051 compatible controller with 13MHz Osc (unfortunately, this is a given situation and not chnageable). Is it true that 9600 is the fastest possible Baudrate that somehow fits to the standard baudrates of a PC? I was looking for something a bit faster, i.e. 57600. Can somebody confirm this or guide m...

Hi All I've obtained the "The 8051 Micro Controller and Embedded Systems Using Assembly and C-2nd-Ed -", and in this manual the DELAY routine...

Hi All I've obtained the "The 8051 Micro Controller and Embedded Systems Using Assembly and C-2nd-Ed -", and in this manual the DELAY routine is described as below, which really confuses me a lot ###################################### In original 8051, one machine cycle lasts 12 oscillator periods So, 1 oscilator period for a 12Mhz Crystal will be 12.0 Mhz / 12 = 1Mhz Therefore on...

Does anyone use the SDCC with Cygnal 8051? I lloked at the SDCC website and found the SDCC has not been targeted for Cygnal 8051 yet. But I do...

Does anyone use the SDCC with Cygnal 8051? I lloked at the SDCC website and found the SDCC has not been targeted for Cygnal 8051 yet. But I do find someone in this group said he use the SDCC with Cygnal 8051. So, can anybody give more info about this?