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add coils for onoff and ejector

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This commit is contained in:
Eggert Jung
2022-10-09 23:39:10 +02:00
parent ae9d0e48e3
commit 03d7fa4513
1 changed files with 48 additions and 21 deletions
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51
main.c
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@@ -18,8 +18,10 @@ uint8_t font[] = {
0xF6,
};
uint16_t bcd;
uint8_t display[4];
volatile uint16_t holdingRegisters[4];
volatile uint8_t outstate = 0;
void timer0_init()
{
@@ -50,6 +52,7 @@ void modbusGet(void) {
{
switch(rxbuffer[1]) {
case fcReadHoldingRegisters:
holdingRegisters[1] = bcd;
modbusExchangeRegisters(holdingRegisters,0,4);
break;
case fcPresetMultipleRegisters:
@@ -59,17 +62,30 @@ void modbusGet(void) {
uint8_t m = (holdingRegisters[0] / 60) % 60;
uint8_t s = holdingRegisters[0] % 60;
uint16_t bcd;
if(h)
bcd = bin2bcd(m) | bin2bcd(h)<<8;
else
bcd = bin2bcd(s) | bin2bcd(m)<<8;
display[0] = font[(bcd&0x000f)];
display[1] = font[(bcd&0x00f0) >> 4];
break;
case fcReadCoilStatus:
modbusExchangeBits(&outstate,0,8);
break;
case fcForceMultipleCoils:
case fcForceSingleCoil:
modbusExchangeBits(&outstate,0,8);
display[2] = font[(bcd&0x0f00) >> 8];
display[3] = bcd&0xF000 ? font[(bcd&0xf000) >> 12] : 0;
if(outstate & 0x01)
PORTB|=1<<4;
else
PORTB&=~(1<<4);
if(outstate & 0x02){
PORTA |= _BV(7);
_delay_ms(250); // well ...
PORTA &= ~_BV(7);
outstate &= ~0x02;
}
break;
default:
modbusSendException(ecIllegalFunction);
@@ -79,12 +95,14 @@ void modbusGet(void) {
}
int main(void){
DDRB |= _BV(4) | _BV(3) | _BV(2) | _BV(1) | _BV(0);
DDRD = 0xFC;
DDRA = 0x03 << 4;
DDRC = 0xFE;
DDRB |= _BV(3) | _BV(2) | _BV(1) | _BV(0); // led anodes
DDRB |= _BV(4); // dots
DDRD = 0xFC; // uln output 1
DDRA |= _BV(5) | _BV(4);
DDRC = 0xFE; // uln output 2
DDRA |= _BV(7); // ejector out
modbusSetAddress(24); //better set this to sth.
modbusSetAddress(24);
modbusInit();
timer0_init();
@@ -93,13 +111,18 @@ int main(void){
sei();
while(1){
display[0] = font[(bcd&0x000f)];
display[1] = font[(bcd&0x00f0) >> 4];
display[2] = font[(bcd&0x0f00) >> 8];
display[3] = bcd&0xF000 ? font[(bcd&0xf000) >> 12] : 0;
modbusGet();
}
}
ISR(TIMER0_COMP_vect)
{
ISR(TIMER0_COMP_vect) {
if(outstate & 0x01){
if(PORTB & 0x01){
PORTB = (PORTB & 0xF0) | 1<<1 | 1<<3;
PORTD = display[3] & 0xFC;
@@ -113,6 +136,10 @@ ISR(TIMER0_COMP_vect)
PORTC = display[0];
}
}
else{
PORTB &= ~0x0F;
}
}
ISR(TIMER2_OVF_vect) { //this ISR is called 9765.625 times per second
modbusTickTimer();