help newbe with 8051 uC

Yes but it'll be tricky to find a copy of PL/M 51 now. Intel's microcontroller handbook of 1983 ? was a good source of info for 805x family btw.

Graham

Intel 8051, a blast from the past! These parts still have a following. You need to Google around a bit to see what people are using to program them lately.

I used to program them, wrote my own assembler, designed my own programmer. When PICs came allong, I completely jumped ship. There are very few advantages to using the Intel parts these days. Since I have a lot of experience with both parts, I would highly recomend learning the PIC instead. Its a learning curve either way, neither is easier to learn, but the PIC runs circles around the 8051.

Luhan

Ooops, should have included this link....

Luhan

Well, I don't use SDCC, but sounds like you're confusing the compiler with an IDE. Probably you can use SDCC with Ultraedit or Eclipse or whatever so you need not spend much time looking at the yucky window.

The best compiler for the 8051 platform is Keil, but it's not cheap. You may be able to get a code-limited version that will help you get started (I got one bundled with some moderately expensive realtime emulator hardware).

By 8520, I assume you mean PIC18F8520. The MPLAB IDE targets *all* the Microchip line, but I think you're talking about a special version of Hitech C which is limited to one particular chip for target for robotics hobbyists. The latter is a DOS-based C compiler that can be integrated fairly tightly (if you ignore stuff like -fakelocal) with the MPLAB IDE. You can always program any of Microchip's line in assembler using MPLAB, which is free.

The number 8253 suggests an ancient NMOS programmable counter-timer chip, but I assume you're talking about an Atmel AT89S825, which is a quite a decent, if a bit slow, modern and economical 80C51 derivative.

The 8051 is still a *very* popular microcontroller architecture, with dozens of manufacturers supplying parts from ones compatible with the original 8031/8051 to 100 MIPS single-cycle parts. New parts are being introduced continuously. You can find 8051 cores in SOC designs, with

I suggest you check out 8052.com and download the Intel manual for the MCS-51, which has an extremely well-written description of how things work.

Best regards, Spehro Pefhany

I would highly recomend

Don't listen to him. 8051s are REAL microcontrollers, not toys like the PIC.

Ian

The most popular C compiler is probably the one by Keil (keil,com). I would suggest you go to 8052.com and sign up for the message board. There are several hundred of us 8052 developers there. Plenty of tutorial material there too.

Ian

The 8051 'Bible' is still available from Intel's web site.

Ian

"Spehro Pefhany" schreef in bericht news: snipped-for-privacy@4ax.com...

They don't have much that is good for service at that temperature, though there's a few choice for +200°C operation.

Maybe some brazing alloy such as: 40Ag 28Zn 30Cu 2Ni. Lead free. ;- )

Best regards, Spehro Pefhany

Took a bit to find it...........

There you go ! Getting to know the Special Function Registers and how to use the timers is important btw.

Graham

What iron temperature works well with lead-free solder? Still 750 F or should it be higher?

Does anyone else see the irony in a page about technology

which has so many coding errrors in 17kB?

Ah, another poor musician who blames the instrument!

Whoa, what did I get into?!?! Thanks to everyone, let me digest these comments. Yes, the MPLAB PIC is a robotic controller. ( I help in a school robotics club, FIRST Robotics)

Wowie Zowie. Who cares? This page was constructed using Mozilla Composer and seems to load well under any browser.

Don't hold your breath waiting for the 'errors' to be 'corrected', hun.

Luhan

Notice that this response appears to come from someone to young to work legally.

To be fair, my experience with the Intel parts is quite out of date. Still it is worth doing some looking around at both what a micro can do and what kind of support exists for it. Then, of course, maybe you just like one better than the other.

Look for advice here, but make up your own mind.

Good luck, Luhan

I've used an 8035, which is an 8051 with no ROM; it needs an external program memory, where I used a 2716 or so; the timer was kind of a PITA but I dug in because it was essentially a PWM task (driving Futaba servos). Another time, I used an 8048 to operate a little 2K FIFO ram, back when FIFO chips were so expensive it was worth it to have a weenie like me slap together a uP-controlled FIFO.

Then, I got a gig where I used the 68HC11. I fell in love. Naturally, that beautiful Motorola architecture seems to have gone the way of the passenger pigeon. Sigh.

Thanks! Rich

sci.electronics.design. >:->

Cheers! Rich