Hi all. I'm an undergrad student doing a year long project on designing an 8051 variant for FPGA. We're required to decide upon the...

Hi all. I'm an undergrad student doing a year long project on designing an 8051 variant for FPGA. We're required to decide upon the specifications, by targeting any particular application. I'd be really thankful for any suggestions for the applications.... Could someone guide me to sites that offer a comparison, & applications of available 8051 cores? thanx in advance

Hi, My boss gave me an embedded device with a 8051 processor coupled to a SCC2692 (by Philips) uart and the Keil c compiler. Now I was...

Hi, My boss gave me an embedded device with a 8051 processor coupled to a SCC2692 (by Philips) uart and the Keil c compiler. Now I was ordered to develop some kind of pc-interface. The problem now is: I have absolutely now idea how to access this SCC2692 uart. I have documentation the chip, but how am I supposed to fiddle with it? Is it memory mapped? Does the 8051 have special io-ins...

Why 8051 need 2 clock cycle for 1 system state?

Why 8051 need 2 clock cycle for 1 system state?

Any pointers on 8051 parts supplier in Hyderabad, India? Long hours spent with google yielded good results for suppliers in Pune, Jaipur,...

Any pointers on 8051 parts supplier in Hyderabad, India? Long hours spent with google yielded good results for suppliers in Pune, Jaipur, Mumbai etc. but not in Hyderabad. Can anyone please help me, if he/she has been able to procure 8051 parts in Hyderabad before? Thanks in advance, Seemanta

HI all, I am trying to implement a 8051 based RTOS. Now I have to write a context switch function. I think that , copying all the...

HI all, I am trying to implement a 8051 based RTOS. Now I have to write a context switch function. I think that , copying all the neccesarry registers without pushing on to the stack works , do you think is this a good idea? Also what stack size is suitable for my RTOS ? (I think 64 byte is ok) If anyone write an 8051 based RTOS can you give me suggestions please? ...

On Fri, 29 Dec 2006 10:31:38 +0100, "Henry Kiefer" wrote: > Your' probably total wrong. The first 8051 had 40 pins. Have you ever >...

On Fri, 29 Dec 2006 10:31:38 +0100, "Henry Kiefer" wrote: > Your' probably total wrong. The first 8051 had 40 pins. Have you ever > thought that this guy will someday have 8 pins? I predate the 8051 in embedded work. So yes, I remember those days and before and, no, I didn't imagine sot23-6 for PICs or 8051's back then. We shall see. Situation is substantially dif

Hi, I wan to develop a system with the 8051 Micro controller. I have used a development KIT in college days. In the Kit, it was mearly...

Hi, I wan to develop a system with the 8051 Micro controller. I have used a development KIT in college days. In the Kit, it was mearly entering Op-codes and running the program. so, I am not aware of the system the Kit had. Now, i want to buy a 8051 and other required chips and i want to make a system. Can you people guide us, how to proceed. and how can i donwnload the File in to 80...

Can anyone recommend a book on the 8051 with a good explaination of interfacing to one, especially with regards to memory mapped I/O and how the...

Can anyone recommend a book on the 8051 with a good explaination of interfacing to one, especially with regards to memory mapped I/O and how the timing works? I don't have much of a background in using microcontrollers (this is a hobby right now).

hi, we are seeing a problem which we suspect *may* be an intermittent serial port lockup on the 8051 series. We have an 8051-based...

hi, we are seeing a problem which we suspect *may* be an intermittent serial port lockup on the 8051 series. We have an 8051-based device which quits communicating sometimes. Basically we suspect that another component is holding the serial port in the low (break) state for prolonged periods of time and are wondering if anyone knew of any problems with doing this. We are in the proc...

I'm looking for dev / eval boards for 8051-variants. Can anyone recommend good/cheap boards that fit the following criteria: * Enough XRAM. I'd...

I'm looking for dev / eval boards for 8051-variants. Can anyone recommend good/cheap boards that fit the following criteria: * Enough XRAM. I'd need at least 2KB, but 5KB would be better. * There should be free tools to get the program onto the MCU. Ideally, I'd like to have boards for these 8051-variants: * Intel 8052-like * AMD 80C521-style dual dptr (DPL1 at 0x84, DPH1 at 0x85, DPS at 0...

I'm losing my mind with the timer and I can't find out what I'm doing wrong. I have an 8051 (Atmel 89C2051 really), Xtal = 11.059200 MHz and a...

I'm losing my mind with the timer and I can't find out what I'm doing wrong. I have an 8051 (Atmel 89C2051 really), Xtal = 11.059200 MHz and a DS1232 (watchdog chip). What I need to do is to pulse (active low) the strobe line on the DS1232 to keep the 8051 from getting reset. My understanding of the timer is 1/(XTAL/12) = 1.085 us per tic. If I run timer 0 in mode 1 (16 bit) it will interrupt...

Hi. I am interested in how a program could detect if it is running on an 8052 compatible device, or just 8051. It should be reliable, i e if...

Hi. I am interested in how a program could detect if it is running on an 8052 compatible device, or just 8051. It should be reliable, i e if the device is not 8052 compatible, the test sihould not hang up the device. One idea I have, is to write to the idata space and read back. But then I need to know that NO 8051-non8052-compatible device has the extended, 256 bytes, internal memory. S...

Folks, I would like to use the 8051 derivate MAXIM DS89C4xx in one of my experiments regaring motor controlling but I am worried about...

Folks, I would like to use the 8051 derivate MAXIM DS89C4xx in one of my experiments regaring motor controlling but I am worried about the on-chip debugging capabilites. I could not find any material on this topic. Does anybody know whether the DS89C4xx series support debugging or not? Any other known 8051 derivate which features on-chip debugging and which offers an evaluation bo...

This question was asked before. > Hi, > I would like to try out the projects in the book "Microcontroller Projects > in C for the 8051". ...

This question was asked before. > Hi, > I would like to try out the projects in the book "Microcontroller Projects > in C for the 8051". The book provides the hardware circuit and code for the > project. As a newbie in microcontroller, how to transfer the code to the > 8051 (the book did not provide this information) ? > Any pointer is appreciated. > Thanks in advance, I have a

Hi, I have this basic doubt about the terminology of 8051 variants. I have read a couple of their data sheets and based on that here's my...

Hi, I have this basic doubt about the terminology of 8051 variants. I have read a couple of their data sheets and based on that here's my understanding, please correct me if I am wrong: 8051 - ?? Probably generic name for the entire family, no part named as such. right? 87C51 - EPROM variant. So must have a quartz window. 89C51 - EEPROM/FLASH/ISP variant. No quartz window. 89SC51...

Hi, Looking for what's out there in terms of built-in self-test C language code for an 8051 product. Code snippet pointers or even ideas on...

Hi, Looking for what's out there in terms of built-in self-test C language code for an 8051 product. Code snippet pointers or even ideas on what would constitute a good BIT test for an 8051 product. Already have in mind, a RAM test. Any ideas on what else we can test for boot?

Which is the best C compiler for 8051 (Analog Devices Aduc831/841 in particular)? Does anyone have experience with Accutron tools? Thanks in...

Which is the best C compiler for 8051 (Analog Devices Aduc831/841 in particular)? Does anyone have experience with Accutron tools? Thanks in advance.

Hey Any of you had any experience with running tcp/ip stack on 8051 for GPRS purpose?? Which 8051 uC and TCP/IP stack did you use?? Free...

Hey Any of you had any experience with running tcp/ip stack on 8051 for GPRS purpose?? Which 8051 uC and TCP/IP stack did you use?? Free ones preferred :-) Or should I use a different uC like AVR ATMega128 og an ARM7 like Phillips LPC21XX. I've only got experience with 8051 uC.... It's my first GPRS project, any suggestions on my choice of TCP/IP stack?? Regards Jesper Denmark ...

Hi its been some years since i developed a couple of apps using At89c55wd and at89c2051. Am looking at using the same devices again. is this...

Hi its been some years since i developed a couple of apps using At89c55wd and at89c2051. Am looking at using the same devices again. is this the appropriate newsgroup, or does anyone know of another more specific to 8051 design? Thanks, Alistair George.

hello ......... can some buddy explain me the programming to access the sd ram throgh 8051 its very urgent........please tell me...

hello ......... can some buddy explain me the programming to access the sd ram throgh 8051 its very urgent........please tell me ...................or give the solution in my email id g.gaurav.s@gmail.com