96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
|
|
||
|
|
#include "ch.h"
|
||
|
|
#include "hal.h"
|
||
|
|
|
||
|
|
// Green, Orange, Red, Blue
|
||
|
|
static const int leds[] = { GPIOD_LED4 , GPIOD_LED3 , GPIOD_LED5 , GPIOD_LED6 };
|
||
|
|
static const int speeds[] = { 50 , 250 , 500 , 1000 };
|
||
|
|
|
||
|
|
|
||
|
|
static PWMConfig pwmConfig = {
|
||
|
|
2000 ,
|
||
|
|
2000 ,
|
||
|
|
NULL ,
|
||
|
|
{
|
||
|
|
{ PWM_OUTPUT_ACTIVE_HIGH , NULL } ,
|
||
|
|
{ PWM_OUTPUT_ACTIVE_HIGH , NULL } ,
|
||
|
|
{ PWM_OUTPUT_ACTIVE_HIGH , NULL } ,
|
||
|
|
{ PWM_OUTPUT_ACTIVE_HIGH , NULL } ,
|
||
|
|
} ,
|
||
|
|
0 , // CR2
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
static void setupPWM( void )
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
// Initialise PWM, route output to LEDs, setup channels
|
||
|
|
pwmStart( &PWMD4 , &pwmConfig );
|
||
|
|
for ( i = 0 ; i < 4 ; i ++ ) {
|
||
|
|
palSetPadMode( GPIOD , leds[ i ] , PAL_MODE_ALTERNATE( 2 ) );
|
||
|
|
pwmEnableChannel( &PWMD4 , i , speeds[ i ] );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void pwmReset( void * ptr __attribute__((unused)) )
|
||
|
|
{
|
||
|
|
pwmStop( &PWMD4 );
|
||
|
|
setupPWM( );
|
||
|
|
}
|
||
|
|
|
||
|
|
static VirtualTimer pwmResetTimer;
|
||
|
|
|
||
|
|
static void onButtonPressed( EXTDriver * driver __attribute__((unused)) ,
|
||
|
|
expchannel_t channel __attribute__((unused)) )
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
chSysLockFromIsr( );
|
||
|
|
for ( i = 0 ; i < 4 ; i ++ ) {
|
||
|
|
pwmConfig.channels[ i ].mode = 3 - pwmConfig.channels[ i ].mode;
|
||
|
|
}
|
||
|
|
chVTSetI( &pwmResetTimer , 1 , &pwmReset , NULL );
|
||
|
|
chSysUnlockFromIsr( );
|
||
|
|
}
|
||
|
|
|
||
|
|
static const EXTConfig extConfig = {{
|
||
|
|
{ EXT_CH_MODE_RISING_EDGE | EXT_CH_MODE_AUTOSTART , onButtonPressed } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
{ EXT_CH_MODE_DISABLED , NULL } ,
|
||
|
|
}};
|
||
|
|
|
||
|
|
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
halInit();
|
||
|
|
chSysInit();
|
||
|
|
|
||
|
|
setupPWM( );
|
||
|
|
extStart( &EXTD1 , &extConfig );
|
||
|
|
|
||
|
|
while (TRUE) {
|
||
|
|
chThdYield( );
|
||
|
|
}
|
||
|
|
}
|