void effect_colorFade(pixel_t strip[], uint16_t delay, uint8_t amplitude) {
static uint8_t mode = 0;
static uint8_t r;
static uint8_t g;
static uint8_t b;
switch (mode) {
case 0:
r = amplitude;
g = 0;
b = 0;
mode = 1;
break;
case 1: // red state
r--;
g++;
if (g == amplitude) mode++;
break;
case 2: // green state
g--;
b++;
if (b == amplitude) mode++;
break;
case 3: // blue state
b--;
r++;
if (r == amplitude) mode = 1;
break;
default:
mode = 0;
}
setStripColor(strip, NUM_LEDS, r, g, b);
writeStrip(strip, NUM_LEDS, hardware_spi_write);
latchStrip(hardware_spi_write, NUM_LEDS);
_delay_ms(delay);
}
void ws2811LedStripHardwareInit(void)
{
TimHandle.Instance = WS2811_TIMER;
TimHandle.Init.Prescaler = 1;
TimHandle.Init.Period = 135; // 800kHz
TimHandle.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
return;
}
static DMA_HandleTypeDef hdma_tim;
ws2811IO = IOGetByTag(IO_TAG(WS2811_PIN));
/* GPIOA Configuration: TIM5 Channel 1 as alternate function push-pull */
IOInit(ws2811IO, OWNER_LED_STRIP, RESOURCE_OUTPUT, 0);
IOConfigGPIOAF(ws2811IO, IO_CONFIG(GPIO_MODE_AF_PP, GPIO_SPEED_FREQ_VERY_HIGH, GPIO_PULLUP), WS2811_TIMER_GPIO_AF);
__DMA1_CLK_ENABLE();
/* Set the parameters to be configured */
hdma_tim.Init.Channel = WS2811_DMA_CHANNEL;
hdma_tim.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tim.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tim.Init.MemInc = DMA_MINC_ENABLE;
hdma_tim.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD ;
hdma_tim.Init.MemDataAlignment = DMA_MDATAALIGN_WORD ;
hdma_tim.Init.Mode = DMA_NORMAL;
hdma_tim.Init.Priority = DMA_PRIORITY_HIGH;
hdma_tim.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_tim.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_tim.Init.MemBurst = DMA_MBURST_SINGLE;
hdma_tim.Init.PeriphBurst = DMA_PBURST_SINGLE;
/* Set hdma_tim instance */
hdma_tim.Instance = WS2811_DMA_STREAM;
uint32_t channelAddress = 0;
switch (WS2811_TIMER_CHANNEL) {
case TIM_CHANNEL_1:
timDMASource = TIM_DMA_ID_CC1;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR1);
break;
case TIM_CHANNEL_2:
timDMASource = TIM_DMA_ID_CC2;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR2);
break;
case TIM_CHANNEL_3:
timDMASource = TIM_DMA_ID_CC3;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR3);
break;
case TIM_CHANNEL_4:
timDMASource = TIM_DMA_ID_CC4;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR4);
break;
}
/* Link hdma_tim to hdma[x] (channelx) */
__HAL_LINKDMA(&TimHandle, hdma[timDMASource], hdma_tim);
dmaSetHandler(WS2811_DMA_HANDLER_IDENTIFER, WS2811_DMA_IRQHandler, NVIC_PRIO_WS2811_DMA, timDMASource);
/* Initialize TIMx DMA handle */
if(HAL_DMA_Init(TimHandle.hdma[timDMASource]) != HAL_OK)
{
/* Initialization Error */
return;
}
TIM_OC_InitTypeDef TIM_OCInitStructure;
/* PWM1 Mode configuration: Channel1 */
TIM_OCInitStructure.OCMode = TIM_OCMODE_PWM1;
TIM_OCInitStructure.Pulse = 0;
TIM_OCInitStructure.OCPolarity = TIM_OCPOLARITY_HIGH;
TIM_OCInitStructure.OCIdleState = TIM_OCIDLESTATE_RESET;
TIM_OCInitStructure.OCNIdleState = TIM_OCNIDLESTATE_RESET;
TIM_OCInitStructure.OCFastMode = TIM_OCFAST_DISABLE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &TIM_OCInitStructure, WS2811_TIMER_CHANNEL) != HAL_OK)
{
/* Configuration Error */
return;
}
const hsvColor_t hsv_white = { 0, 255, 255};
ws2811Initialised = true;
setStripColor(&hsv_white);
}
void ws2811LedStripHardwareInit(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
uint16_t prescalerValue;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_1);
/* GPIOA Configuration: TIM16 Channel 1 as alternate function push-pull */
GPIO_InitStructure.GPIO_Pin = WS2811_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(WS2811_GPIO, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM16, ENABLE);
/* Compute the prescaler value */
prescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;
/* Time base configuration */
TIM_TimeBaseStructure.TIM_Period = 29; // 800kHz
TIM_TimeBaseStructure.TIM_Prescaler = prescalerValue;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM16, &TIM_TimeBaseStructure);
/* PWM1 Mode configuration: Channel1 */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM16, &TIM_OCInitStructure);
TIM_CtrlPWMOutputs(TIM16, ENABLE);
/* configure DMA */
/* DMA clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* DMA1 Channel Config */
DMA_DeInit(DMA1_Channel3);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&TIM16->CCR1;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)ledStripDMABuffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = WS2811_DMA_BUFFER_SIZE;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel3, &DMA_InitStructure);
/* TIM16 CC1 DMA Request enable */
TIM_DMACmd(TIM16, TIM_DMA_CC1, ENABLE);
DMA_ITConfig(DMA1_Channel3, DMA_IT_TC, ENABLE);
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
setStripColor(&white);
ws2811UpdateStrip();
}
void ws2811LedStripHardwareInit(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
DMA_InitTypeDef DMA_InitStructure;
uint16_t prescalerValue;
dmaSetHandler(WS2811_DMA_HANDLER_IDENTIFER, WS2811_DMA_IRQHandler, NVIC_PRIO_WS2811_DMA, 0);
ws2811IO = IOGetByTag(IO_TAG(WS2811_PIN));
/* GPIOA Configuration: TIM5 Channel 1 as alternate function push-pull */
IOInit(ws2811IO, OWNER_LED_STRIP, RESOURCE_OUTPUT, 0);
IOConfigGPIO(ws2811IO, IO_CONFIG(GPIO_Speed_50MHz, GPIO_Mode_AF_PP));
RCC_ClockCmd(timerRCC(WS2811_TIMER), ENABLE);
/* Compute the prescaler value */
prescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;
/* Time base configuration */
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 29; // 800kHz
TIM_TimeBaseStructure.TIM_Prescaler = prescalerValue;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
/* PWM1 Mode configuration: Channel1 */
TIM_OCStructInit(&TIM_OCInitStructure);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM3, &TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);
TIM_CtrlPWMOutputs(TIM3, ENABLE);
/* configure DMA */
/* DMA clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* DMA1 Channel6 Config */
DMA_DeInit(DMA1_Channel6);
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&TIM3->CCR1;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)ledStripDMABuffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = WS2811_DMA_BUFFER_SIZE;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel6, &DMA_InitStructure);
/* TIM3 CC1 DMA Request enable */
TIM_DMACmd(TIM3, TIM_DMA_CC1, ENABLE);
DMA_ITConfig(DMA1_Channel6, DMA_IT_TC, ENABLE);
const hsvColor_t hsv_white = { 0, 255, 255};
ws2811Initialised = true;
setStripColor(&hsv_white);
ws2811UpdateStrip();
}
static void ledStripDisable(void)
{
setStripColor(&hsv_black);
ws2811UpdateStrip();
}
void ws2811LedStripHardwareInit(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
uint16_t prescalerValue;
#ifdef CC3D
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
#else
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
/* GPIOA Configuration: TIM3 Channel 1 as alternate function push-pull */
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
#endif
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
/* Compute the prescaler value */
prescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;
/* Time base configuration */
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 29; // 800kHz
TIM_TimeBaseStructure.TIM_Prescaler = prescalerValue;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
/* PWM1 Mode configuration: Channel1 */
TIM_OCStructInit(&TIM_OCInitStructure);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM3, &TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);
TIM_CtrlPWMOutputs(TIM3, ENABLE);
/* configure DMA */
/* DMA clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* DMA1 Channel6 Config */
DMA_DeInit(DMA1_Channel6);
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&TIM3->CCR1;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)ledStripDMABuffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = WS2811_DMA_BUFFER_SIZE;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel6, &DMA_InitStructure);
/* TIM3 CC1 DMA Request enable */
TIM_DMACmd(TIM3, TIM_DMA_CC1, ENABLE);
DMA_ITConfig(DMA1_Channel6, DMA_IT_TC, ENABLE);
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel6_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_WS2811_DMA);
NVIC_InitStructure.NVIC_IRQChannelSubPriority = NVIC_PRIORITY_SUB(NVIC_PRIO_WS2811_DMA);
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
const hsvColor_t hsv_white = { 0, 255, 255};
setStripColor(&hsv_white);
ws2811UpdateStrip();
}
