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[Moved] how to simulate Mt8870 with proteus7.2?

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Eip

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Hi! I wana simulate Mt8870 with proteus7.2 but as you know it does not have this
component !? please help me.What should I do!?
 

Re: MT8870.lib proteus???

Eip said:
Hi! I wana simulate Mt8870 with proteus7.2 but as you know it does not have this
component !? please help me.What should I do!?
Click to expand...

try this
 
Re: MT8870.lib proteus???

wanditea said:
try this
Click to expand...
Can you explain a bit about this file you have suggested? Coz i didnt find any 8870 Proteus model in it. A hex file was found and it would be great if you could let know how to use it.
Cheers
 
Re: MT8870.lib proteus???

pranam77 said:
Can you explain a bit about this file you have suggested? Coz i didnt find any 8870 Proteus model in it. A hex file was found and it would be great if you could let know how to use it.
Cheers
Click to expand...

in fact it is a for substitute simulation 8870 using 8951 and keypad
I made it according to the datasheet 8870
P0.0 = Q0 p0.1=Q1 p0.2 = Q2 p0.3= Q3 p0.7=StD & p2.7 = TOE
how it works is:
* if button 1 is pressed then the data p.0.0-p0.3 = 0001
* if button 2 is pressed then the data p.0.0-p0.3 = 0010
* if button 3 is pressed then the data p.0.0-p0.3 = 0011
* if button 4 is pressed then the data p.0.0-p0.3 = 0100
so on until
* if the 0 key is pressed then the data p.0-p0.3 = 1010
any suppression issue StD pin high to low 1-->0
and if given the TOE pin low then p.0.0-p0.3 will high all

if there is an error please correct me this idea ..
 
Re: MT8870.lib proteus???

Li_ereunpisan said:
in fact it is a for substitute simulation 8870 using 8951 and keypad
I made it according to the datasheet 8870
P0.0 = Q0 p0.1=Q1 p0.2 = Q2 p0.3= Q3 p0.7=StD & p2.7 = TOE
how it works is:
* if button 1 is pressed then the data p.0.0-p0.3 = 0001
* if button 2 is pressed then the data p.0.0-p0.3 = 0010
* if button 3 is pressed then the data p.0.0-p0.3 = 0011
* if button 4 is pressed then the data p.0.0-p0.3 = 0100
so on until
* if the 0 key is pressed then the data p.0-p0.3 = 1010
any suppression issue StD pin high to low 1-->0
and if given the TOE pin low then p.0.0-p0.3 will high all

if there is an error please correct me this idea ..
Click to expand...


Hey, plz.... u mail me details about DTMF decoder simulation in proteus at anilzkf@hotmail.com
 

Re: MT8870.lib proteus???

anilzkf said:
Hey, plz.... u mail me details about DTMF decoder simulation in proteus at anilzkf@hotmail.com
Click to expand...

as detailed as what you mean?
simulation that I created,just to help simulate DTMF receiver pin only,such as DTMF receiver using a microcontroller,and the microcontroller is of course that can be simulated,the pin 8870is used only STD (15), Q4 (14), Q3 (13), Q2 (12), Q1 (11) and TOE pin (10)
while the other pins are not used, to replace the phone line input, I use the keypad matrix as used on the telephone, the same right?
 

Re: MT8870.lib proteus???

Li_ereunpisan said:
as detailed as what you mean?
simulation that I created,just to help simulate DTMF receiver pin only,such as DTMF receiver using a microcontroller,and the microcontroller is of course that can be simulated,the pin 8870is used only STD (15), Q4 (14), Q3 (13), Q2 (12), Q1 (11) and TOE pin (10)
while the other pins are not used, to replace the phone line input, I use the keypad matrix as used on the telephone, the same right?
Click to expand...

I'm not getting DTMF decoder ic at all. Tell me which library should i add???
 

Re: MT8870.lib proteus???

anilzkf said:
I'm not getting DTMF decoder ic at all. Tell me which library should i add???
Click to expand...

I do not use the library, MT8870 was replaced by the AT89C51 as the receiver keypad and output as output MT8870
 
Re: MT8870.lib proteus???

plz tell me that wheather ur hex file contain keypad code or not ????
 

Re: MT8870.lib proteus???

Li_ereunpisan said:
I do not use the library, MT8870 was replaced by the AT89C51 as the receiver keypad and output as output MT8870
Click to expand...
can you plz provide me the ASM code for that logic you have made?
 

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