CHARGE_PUMP(9)

SYNOPSIS

loadrt charge_pump

DESCRIPTION

The Charge Pump should be added to the base thread function. When enabled the output is on for one period and off for one period. To calculate the frequency of the output 1/(period time in seconds x 2) = Hz. For example if you have a base period of 100,000ns that is 0.0001 seconds and the formula would be 1/(0.0001 x 2) = 5,000 Hz or 5 kHz. Two additional outputs are provided that run a factor of 2 and 4 slower for hardware that requires a lower frequency.

FUNCTIONS

charge-pump.-: Toggle the output bit (if enabled)

PINS

charge-pump.out bit out: Square wave if enable is TRUE or unconnected, low if enable is FALSE
charge-pump.out-2 bit out: Square wave at half the frequency of out
charge-pump.out-4 bit out: Square wave at a quarter of the frequency of out
charge-pump.enable bit in (default: TRUE): If FALSE, forces all out pins to be low

AUTHOR

Jeff Epler

LICENSE

GPL