wish to learn microcontroller....... need your help

[Ian Rogers]

Try this little bit of code for starters

 

[ikelectro]

Try this little bit of code for starters

I'm writing the program, but actually what means by : org, setb, seta, inc etc???/ suppose they are commands but what they stand for or what they do??

 

[ikelectro]

i'm not understand this....

You need to toggle P2.0 by inserting directly into the SFR window at
the bottom of the screen

I wrote the program in the simulator...

yes. it's working. LEDs are blinking......

 

[absf]

Try this little bit of code for starters

That was a nice tutorial for beginner. Are you going to add in lessons and chapters as time goes on and publish it as a full tutorial ?

I don't mind to become another beginner to relearn 8051 from fresh as I have forgotten most of them already. My old 8051 board has a monitor program inside and communicate with the PC via COM port. I used the ASM51 and MSKermit to talk to the 8051 board.

Allen

 

[Brevor]

I think ( Its my opinion ) that the paged memory is the biggest issue on the PIC.. ( I'm talking mainly about the 8 bit systems)

Im with you there Ian, The paged memory is my biggest gripe about the PIC's

 

[Ian Rogers]

That was a nice tutorial for beginner. Are you going to add in lessons and chapters as time goes on and publish it as a full tutorial ?

I don't mind to become another beginner to relearn 8051 from fresh as I have forgotten most of them already. My old 8051 board has a monitor program inside and communicate with the PC via COM port. I used the ASM51 and MSKermit to talk to the 8051 board.

Allen

I have done one for the PIC using MPLAB... I will do a tutorial eventually if its what people want..

 

[ikelectro]

Hello Ian,

what the code you posted last day is working on simulation.

 

[Ian Rogers]

Hello Ian,

what the code you posted last day is working on simulation.

Sorry!! I don't understand?

 

[ikelectro]

Sorry!! I don't understand?

i want to say that : the code or program you posted in pdf file for me as a tutorial, is working in the simulator.....

 

[Ian Rogers]

Oh good... Tell me what you want to do next... I'll try and give you a lift up!!

 

[ikelectro]

Oh good... Tell me what you want to do next... I'll try and give you a lift up!!

thanks. next i want:: what is BIT ADDRESSABLE MEMORY.
what can it do exactly. i'm little confused in here.



can we only write a program only in rom?

 

[Ian Rogers]

Bit addressable are SFR's locatioons 0x80 to 0xF0 and a small 16 byte memory locations 0x20 to 0x2F.

Bit access is great for boolean flags on/off variables..

flags equ 0x20

   setb   flags.0 ; access bit 0 of the flags variable

 

[ikelectro]

plz correct me :

setb  24h

does that mean if I write this, the value of 24h is becomes 1 (high). and if I can access this 24h to the pin of micro P1.0 then the value of the P1.0 becomes . Am I right????

 

[ikelectro]

Bit addressable are SFR's locatioons 0x80 to 0xF0

what does it mean by? truly I'm really can't understand this... As far as I know the bit addressable memory and the SFR has their own different locations.. some registers are bit addressable?????????
im totaly lost here......

 

[Ian Rogers]

Bit addressing only means you can access a single bit in a byte

ie...

flag   equ   24
   mov   flag,#0xFF   ; move 0xFF into flags <<-- byte addressing
   clr    flag     ; clear flags
   setb   flag.1   ;  set bit 1 in flags <<-- Bit addressing

 

[ikelectro]

Now what will be next for???
I'm now reading the SFR in the dpdf.....

 

[ikelectro]

Hi Ian,
is there anything to have a look for me... ?

 

[Ian Rogers]

Hi Ian,
is there anything to have a look for me... ?

You ask me the questions and I'll try and answer you....

What would YOU like to try and do next...

 

[ikelectro]

I want to make lighten up 8 LEDs in different way. And also want to understand the CODE/Program, how it works... thanks in advanced....

 

[Ian Rogers]

Make a little stripboard or breadboard with 8 LED's on and 8 270Ω resistors and connect it to the port of your choice.... P1 is favorite..

We can make the code once you have everything...