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flicled.c
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/**
* @file flicled.h
* @brief This file controls the LED ring of the flic-twist.
*/
#include "flicled.h"
#include "app_log.h"
#include "em_cmu.h"
#include "em_gpio.h"
#include "em_timer.h"
#include "ustimer.h"
#define CLI_PIN_C03_C05
#define PWM_PEROID 0xFFFF // (38.4MHz/0xFFFF) = 585.9464408Hz
#define PWM_DUTY_CYCLE 0x3FFF // 25% of PWM_PEROID
#define PWM_SYNC_TIMER 0x7FFF // 50% of PWM_PEROID
static uint32_t activeLEDMask;
/**
* @brief Initializes the flicled module.
*
* This function initializes the GPIO, TIMER1, and TIMER2 peripherals
* required for controlling the flicled module. It configures TIMER1 and
* TIMER2 in PWM mode and sets the desired PWM period and duty cycle.
* It also routes the CC0 output of TIMER1 and TIMER2 to the corresponding
* GPIO pins.
*/
void flicled_init(void)
{
TIMER_Init_TypeDef timerInit = TIMER_INIT_DEFAULT;
TIMER_InitCC_TypeDef timerCCInit = TIMER_INITCC_DEFAULT;
// Enable clock for GPIO, TIMER1 and TIMER2
CMU_ClockEnable(cmuClock_GPIO, true);
CMU_ClockEnable(cmuClock_TIMER1, true);
CMU_ClockEnable(cmuClock_TIMER2, true);
timerInit.enable = false; // Don't start counter on initialisation
timerCCInit.mode = timerCCModePWM; // PWM mode
// TIMER1 configuration
TIMER_Init(TIMER1, &timerInit);
TIMER_InitCC(TIMER1, 0, &timerCCInit);
TIMER_TopSet(TIMER1, PWM_PEROID);
TIMER_CompareSet(TIMER1, 0, PWM_DUTY_CYCLE);
// Configure and route CC0 output to PB01
GPIO_PinModeSet(COM_LED1u_TO_LED6u_PORT, COM_LED1u_TO_LED6u_PIN, gpioModePushPull, 0);
GPIO->TIMERROUTE[1].ROUTEEN = GPIO_TIMER_ROUTEEN_CC0PEN;
GPIO->TIMERROUTE[1].CC0ROUTE = (COM_LED1u_TO_LED6u_PORT
<< _GPIO_TIMER_CC0ROUTE_PORT_SHIFT)
| (COM_LED1u_TO_LED6u_PIN << _GPIO_TIMER_CC0ROUTE_PIN_SHIFT);
TIMER_Enable(TIMER1, true);
// TIMER1 compare event interrupts
TIMER_IntEnable(TIMER1, TIMER_IF_OF | TIMER_IF_CC0);
NVIC_EnableIRQ(TIMER1_IRQn);
// TIMER2 configuration
TIMER_Init(TIMER2, &timerInit);
TIMER_InitCC(TIMER2, 0, &timerCCInit);
TIMER_TopSet(TIMER2, PWM_PEROID);
TIMER_CompareSet(TIMER2, 0, PWM_DUTY_CYCLE);
// Configure and route CC0 output to PB01
GPIO_PinModeSet(COM_LED7u_TO_LED12u_PORT, COM_LED7u_TO_LED12u_PIN, gpioModePushPull, 0);
GPIO->TIMERROUTE[2].ROUTEEN = GPIO_TIMER_ROUTEEN_CC0PEN;
GPIO->TIMERROUTE[2].CC0ROUTE = (COM_LED7u_TO_LED12u_PORT
<< _GPIO_TIMER_CC0ROUTE_PORT_SHIFT)
| (COM_LED7u_TO_LED12u_PIN << _GPIO_TIMER_CC0ROUTE_PIN_SHIFT);
TIMER_Enable(TIMER2, true);
// TIMER2 compare event interrupts
TIMER_IntEnable(TIMER2, TIMER_IF_OF | TIMER_IF_CC0);
NVIC_EnableIRQ(TIMER2_IRQn);
// Dirty-sync TIMER2 at 50% duty-cycle of TIMER1
TIMER_CounterSet(TIMER1, 0x0);
TIMER_CounterSet(TIMER2, (PWM_SYNC_TIMER + 19)); // Manually tuned
// Pull LEDs high to turn them off (default)
bool off = true;
GPIO_PinModeSet(LED1u_LED7u_PORT, LED1u_LED7u_PIN, gpioModePushPull, off);
GPIO_PinModeSet(LED2u_LED8u_PORT, LED2u_LED8u_PIN, gpioModePushPull, off);
GPIO_PinModeSet(LED3u_LED9u_PORT, LED3u_LED9u_PIN, gpioModePushPull, off);
GPIO_PinModeSet(LED5u_LED11u_PORT, LED5u_LED11u_PIN, gpioModePushPull, off);
#ifndef CLI_PIN_C03_C05
GPIO_PinModeSet(LED4u_LED10u_PORT, LED4u_LED10u_PIN, gpioModePushPull, off);
GPIO_PinModeSet(LED6u_LED12u_PORT, LED6u_LED12u_PIN, gpioModePushPull, off);
#endif
}
/**
* @brief Sets the brightness of the flicled.
*
* This function sets the brightness of the flicled by adjusting the compare values of TIMER1 and TIMER2.
* The brightness value should be between 0 and 100, where 0 represents the lowest brightness and 100 represents the highest brightness.
*
* @param brightness The brightness value to set.
* @return true if the brightness value is valid and successfully set, false otherwise.
*/
bool flicled_brightness(uint8_t brightness)
{
if (brightness <= 100)
{
TIMER_CompareSet(TIMER1, 0, (TIMER_TopGet(TIMER1) * brightness) / 100);
TIMER_CompareSet(TIMER2, 0, (TIMER_TopGet(TIMER2) * brightness) / 100);
return true;
}
else
{
return false;
}
}
bool flicled_led(uint32_t ledNumber)
{
if ((ledNumber & MASK_OUT_OF_BOUNDS))
{
return false;
}
else
{
activeLEDMask = ledNumber;
return true;
}
}
// Animation LUT
//uint32_t animationLUT[] = {
//(MASK_LED1), // Loop 1 to 5
//(MASK_LED1 | MASK_LED2),
//(MASK_LED1 | MASK_LED2 | MASK_LED3),
//(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4),
//(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
//(MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
//(MASK_LED3 | MASK_LED4 | MASK_LED5),
//(MASK_LED4 | MASK_LED5),
//(MASK_LED5), // Loop 5 to 9
//(MASK_LED5 | MASK_LED6),
//(MASK_LED5 | MASK_LED6 | MASK_LED7),
//(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8),
//(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
//(MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
//(MASK_LED7 | MASK_LED8 | MASK_LED9),
//(MASK_LED8 | MASK_LED9),
//(MASK_LED9), // Loop 9 to 1
//(MASK_LED9 | MASK_LED10),
//(MASK_LED9 | MASK_LED10 | MASK_LED11),
//(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12),
//(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
//(MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
//(MASK_LED11 | MASK_LED12 | MASK_LED1),
//(MASK_LED12 | MASK_LED1),
//(MASK_LED1), // End @ 1
//};
uint32_t animationLUT[] = {
(MASK_LED1), // Loop 1 to 9
(MASK_LED1 | MASK_LED2),
(MASK_LED1 | MASK_LED2 | MASK_LED3),
(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4),
(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5 | MASK_LED6),
(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5 | MASK_LED6 | MASK_LED7),
(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8),
(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED3 | MASK_LED4 | MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED4 | MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED8 | MASK_LED9),
(MASK_LED9), // Loop 9 to 5
(MASK_LED9 | MASK_LED10),
(MASK_LED9 | MASK_LED10 | MASK_LED11),
(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12),
(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1 | MASK_LED2),
(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1 | MASK_LED2 | MASK_LED3),
(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4),
(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED11 | MASK_LED12 | MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED12 | MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED1 | MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED2 | MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED3 | MASK_LED4 | MASK_LED5),
(MASK_LED4 | MASK_LED5),
(MASK_LED5), // Loop 5 to 1
(MASK_LED5 | MASK_LED6),
(MASK_LED5 | MASK_LED6 | MASK_LED7),
(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8),
(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9),
(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9 | MASK_LED10),
(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9 | MASK_LED10 | MASK_LED11),
(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12),
(MASK_LED5 | MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED6 | MASK_LED7 | MASK_LED8 | MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED7 | MASK_LED8 | MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED8 | MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED9 | MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED10 | MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED11 | MASK_LED12 | MASK_LED1),
(MASK_LED12 | MASK_LED1),
(MASK_LED1), // End @ 1
};
bool flicled_animation_rotate(void)
{
uint32_t delay = 80 * 1000; // 80ms
for (unsigned int i = 0; i < 3; i++)
{
for (unsigned int i = 0;
i < (sizeof(animationLUT) / sizeof(animationLUT[0]) - 1); i++) //10sec
{
activeLEDMask = animationLUT[i];
USTIMER_Delay(delay);
}
}
activeLEDMask = animationLUT[0];
USTIMER_Delay(delay);
activeLEDMask = 0x0;
return true;
}
//bool flicled_animation_rotate(void)
//{
// uint32_t lvMask = MASK_LED1;
//
// for (unsigned int i = 0; i < LED_COUNT; i++)
// {
// activeLEDMask = lvMask;
// USTIMER_Delay(100 * 1000); //100mS
//
// lvMask = lvMask << 1;
//
// if (lvMask > MASK_LED12)
// {
// lvMask = MASK_LED1;
// }
//
// }
//
// activeLEDMask = 0x0;
//
// return true;
//
//}
void TIMER1_IRQHandler(void)
{
// Acknowledge the interrupt
uint32_t flags = TIMER_IntGet(TIMER1);
TIMER_IntClear(TIMER1, flags);
// Turn LEDs on when timer overflows and off on CC0
if (flags & TIMER_IF_OF)
{
GPIO->P_CLR[gpioPortC].DOUT = (activeLEDMask & MASK_LED1_TO_LED6);
}
else
{
GPIO->P_SET[gpioPortC].DOUT = MASK_LED1_TO_LED6;
}
}
void TIMER2_IRQHandler(void)
{
// Acknowledge the interrupt
uint32_t flags = TIMER_IntGet(TIMER2);
TIMER_IntClear(TIMER2, flags);
// Turn LEDs on when timer overflows and off on CC0
if (flags & TIMER_IF_OF)
{
GPIO->P_CLR[gpioPortC].DOUT = ((activeLEDMask & MASK_LED7_TO_LED12) >> MASK_OFFSET);
}
else
{
GPIO->P_SET[gpioPortC].DOUT = (MASK_LED7_TO_LED12 >> MASK_OFFSET);
}
}