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#267 new output commands PWM_MODE_BAL & PWM_MODE_MS

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mstroh76
2024-08-23 16:30:08 +02:00
parent 725336332e
commit 6992794f1d
2 changed files with 21 additions and 12 deletions
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23
wiringPi/wiringPi.c
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@@ -1794,6 +1794,9 @@ void pinMode (int pin, int mode)
} else {
*(gpio + fSel) = (*(gpio + fSel) & ~(7 << shift)) ; // Sets bits to zero = input
}
if (PM_OFF==mode && !usingGpioMem && pwm && PI_MODEL_5!=RaspberryPiModel && gpioToPwmALT[pin]>0) { //PWM pin -> reset
pwmWrite(origPin, 0);
}
} else if (mode == OUTPUT) {
if (PI_MODEL_5 == RaspberryPiModel) {
pads[1+pin] = (pin<=8) ? RP1_PAD_DEFAULT_0TO8 : RP1_PAD_DEFAULT_FROM9;
@@ -1811,22 +1814,26 @@ void pinMode (int pin, int mode)
pinMode (origPin, PWM_OUTPUT) ; // Call myself to enable PWM mode
pwmSetMode (PWM_MODE_MS) ;
}
else if (mode == PWM_OUTPUT)
{
else if (PWM_OUTPUT==mode || PWM_MS_OUTPUT==mode || PWM_BAL_OUTPUT==mode) {
RETURN_ON_MODEL5
if ((alt = gpioToPwmALT [pin]) == 0) // Not a hardware capable PWM pin
return ;
usingGpioMemCheck ("pinMode PWM") ;
// Set pin to PWM mode
usingGpioMemCheck("pinMode PWM") ; // exit on error!
// Set pin to PWM mode
*(gpio + fSel) = (*(gpio + fSel) & ~(7 << shift)) | (alt << shift) ;
delayMicroseconds (110) ; // See comments in pwmSetClockWPi
pwmSetMode (PWM_MODE_BAL) ; // Pi default mode
pwmSetRange (1024) ; // Default range of 1024
pwmSetClock (32) ; // 19.2 / 32 = 600KHz - Also starts the PWM
if (PWM_OUTPUT==mode || PWM_BAL_OUTPUT==mode) {
pwmSetMode(PWM_MODE_BAL); // Pi default mode
} else {
pwmSetMode(PWM_MODE_MS);
}
if (PWM_OUTPUT==mode) { // predefine
pwmSetRange (1024) ; // Default range of 1024
pwmSetClock (32) ; // 19.2 / 32 = 600KHz - Also starts the PWM
}
}
else if (mode == GPIO_CLOCK)
{