k8055m_set_output, k8055m_get_output -- Set/get the status of all digital and pwm output ports
k8055-pic18f access library
#include "k8055m.h"
int
k8055m_set_output(int cardNumber, int digitalMask, int digitalValue, int pwmMask, int pwmValue1, int pwmValue2);
int
k8055m_get_output(int cardNumber, int *digitalValue, int *pwmValue1, int* pwmValue2);
With k8055m_set_output()
one or more digital and pwm ports can be set at once.
Which digital ports are to be changed is specified in the lower 8 bits of digitalMask and
their new status or/off is given in the lower 8 bits of digitalValue..
Likewise which pwm ports are affected are specified in the lower 2 bits of pwmMask
and their duty cycle in the range of 0 .. 1023 in pwmValue1 and pwmValue2.
If the card's auto-flush feature is turned off, then a call to k8055m_set_digital_out()
or k8055m_set_digital_out_all() will not be sent to the card and the resulting
changes will be accumulated until k8055m_flush() is called or the card's auto-flush
feature is enabled.
The k8055-pic18f modified card retains its output port states while the USB is disconnected,
as long as it keeps running on a powered USB hub or similar power supply. k8055m_open()
actually queries the card for its current configuration and output port settings.
k8055m_get_output() return those initial
or the latest requested settings.
k8055m_set_output() and k8055m_get_output() return 0 on success, -1 on error.