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Refer Mode 5 of the document.
It states that you have 6 different outputs for 6 different coins, and you have accumlator as well. You can program different pulse widths for different coins. You your hardware is not already developed and if you have 6 IO's available then you can connect them...
If there is only one O/p from the Coin system, then are you sure it is giving analog voltage for each type of coin. Or is it giving any other type of signal. Without this detail of the o/p from the coin box it is difficult to suggest any solution. Can you elborate on the details of the coin box...
Instead of going in the analog domain, why don't you try implementing a camparators to trigger different pins. This is acceptable if you have sufficient IO pins available.
To program ADC C- cross compiler shall ease your job. That's what I have done with PIC18F452.
I haven't worked on 16F877...
Re: SPI
Motorola introduced SPI.
With nationals documentation microwire may be found.
Microwire and SPI are same. Can search for either of these keywords
18f452 keyboard
i am corrently interfacing keyboard to pic 18f452. when command to turn on 'caps/num' is given to the kbd, the keyboard hangs .
Host to Keyboard code is as follows
void SendKbdCmd(unsigned char cmd)
{
unsigned char cnt, par=0, mask=0x1;
INTCONbits.GIE = 0;
KbXmit=1...
#define data portebits.re0
PROBLEMS ENCOUNTERED IN DEVELOPMENT OF AN EMBEDED SYSTEM USING PIC 18F452
PROBLEM NO (1)
WHEN PORT E IS USED AS CONTROL PORT FOR LCD MODULE AND PINS ARE DEFINED AS FOLLOWS
#define RS PORTEbits.RE0
#define RW PORTEbits.RE1
#define E PORTEbits.RE2
#define DATAPORT...
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