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Add initial feed

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The MCU board now lets the printer pull in the carrier until the new
paper in sensor is triggered for the first time and then starts the
print like before. The new "initial feed" provides an alignment of the
carrier which is exactly the same every time. Of course, the carrier now
needs two markings.
This commit is contained in:
fruchti 2015-10-04 11:51:38 +02:00
parent 8ac4d886e5
commit 2f9c8f51c7
4 changed files with 103 additions and 67 deletions
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24
src/main.c
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@ -84,10 +84,21 @@ int main(void)
// blocked by carrier
if(HallSensorTimer < T_HALL_L && !(I_NPPINS & (1 << P_NPPINS)))
{
// Block carrier
O_CLUTCH |= (1 << P_CLUTCH);
// Unblock carrier
O_CLUTCH &= ~(1 << P_CLUTCH);
O_LED_GN |= (1 << P_LED_GN);
O_LED_RD &= ~(1 << P_LED_RD);
State = AlignFeed;
}
break;
case AlignFeed:
// Check if carrier has moved to the first marked position
if(I_NPPINS & (1 << P_NPPINS))
{
// Block carrier
O_CLUTCH |= (1 << P_CLUTCH);
State = ClutchDelay;
MillisecondCounter = 0;
}
@ -101,6 +112,15 @@ int main(void)
// Enable manual paper feed sensor
O_MNPFSO &= ~(1 << P_MNPFSO);
State = WaitingForFeed;
}
break;
case WaitingForFeed:
// Check if the end of the alignment marking on the carrier is
// hit (this state is needed because the alignment marking would
// lead to skipping the WaitingForPaperIn state right away)
if(!(I_NPPINS & (1 << P_NPPINS)))
{
State = WaitingForPaperIn;
}
break;