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CNC Mill - ICP 4030 Maintenance
This page is for detailed maintenance information that most users won't need to know.
MESA Configuration
The 7C81 MESA card uses the default 7c81_5abobx3d pin configuration. The configuration pinout is copied here for reference:
IO Connections for P1+Serial Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir 0 0 IOPort PWM 0 PWM (Out) 0 1 IOPort None 0 2 IOPort StepGen 0 Step/Table1 (Out) 0 3 IOPort None 0 4 IOPort StepGen 0 Dir/Table2 (Out) 0 5 IOPort None 0 6 IOPort StepGen 1 Step/Table1 (Out) 0 7 IOPort None 0 8 IOPort StepGen 1 Dir/Table2 (Out) 0 9 IOPort StepGen 2 Step/Table1 (Out) 0 10 IOPort StepGen 2 Dir/Table2 (Out) 0 11 IOPort StepGen 3 Step/Table1 (Out) 0 12 IOPort StepGen 3 Dir/Table2 (Out) 0 13 IOPort None 0 14 IOPort QCount 0 Quad-A (In) 0 15 IOPort QCount 0 Quad-B (In) 0 16 IOPort QCount 0 Quad-IDX (In) 0 17 IOPort None 0 18 IOPort None IO Connections for P2+Serial Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir 0 19 IOPort PWM 1 PWM (Out) 0 20 IOPort None 0 21 IOPort StepGen 4 Step/Table1 (Out) 0 22 IOPort None 0 23 IOPort StepGen 4 Dir/Table2 (Out) 0 24 IOPort None 0 25 IOPort StepGen 5 Step/Table1 (Out) 0 26 IOPort None 0 27 IOPort StepGen 5 Dir/Table2 (Out) 0 28 IOPort StepGen 6 Step/Table1 (Out) 0 29 IOPort StepGen 6 Dir/Table2 (Out) 0 30 IOPort StepGen 7 Step/Table1 (Out) 0 31 IOPort StepGen 7 Dir/Table2 (Out) 0 32 IOPort None 0 33 IOPort QCount 1 Quad-A (In) 0 34 IOPort QCount 1 Quad-B (In) 0 35 IOPort QCount 1 Quad-IDX (In) 0 36 IOPort None 0 37 IOPort None IO Connections for P7+Serial Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir 0 38 IOPort PWM 2 PWM (Out) 0 39 IOPort None 0 40 IOPort StepGen 8 Step/Table1 (Out) 0 41 IOPort None 0 42 IOPort StepGen 8 Dir/Table2 (Out) 0 43 IOPort None 0 44 IOPort StepGen 9 Step/Table1 (Out) 0 45 IOPort None 0 46 IOPort StepGen 9 Dir/Table2 (Out) 0 47 IOPort StepGen 10 Step/Table1 (Out) 0 48 IOPort StepGen 10 Dir/Table2 (Out) 0 49 IOPort StepGen 11 Step/Table1 (Out) 0 50 IOPort StepGen 11 Dir/Table2 (Out) 0 51 IOPort None 0 52 IOPort QCount 2 Quad-A (In) 0 53 IOPort QCount 2 Quad-B (In) 0 54 IOPort QCount 2 Quad-IDX (In) 0 55 IOPort None 0 56 IOPort None
The MESA pins (as viewed from the top of the card) are assigned to LinuxCNC nets according to the following diagram:
