User manual

Brick Controller User Manual

PinOuts and Software Setup 133

The calculated Ixx69 specifies the maximum command output value which corresponds to the maximum

PFM Frequency:

I6826=3 ; MACRO IC Channel 2 Output Mode Select. C PFM

M8000->Y:$7841C,8,16,S ; Supplementary Channel 2* Output C Command Value

; Min=0, Max= Calculated Ixx69

M8001->X:$7841D,21 ; Invert C Output Control. 0=no inversion, 1=invert

M8001=0 ;

Testing the J9 PFM Output

Writing directly to the suggested M-variable (i.e. M8000) values proportional to the calculated Ixx69,

produces corresponding frequencies:

M8000

PFM [KHz]

1213

2427