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Code Issues Releases Activity

OP-1312 fix documentation, get rid of stale comments from previous implementations

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This commit is contained in:
Alessio Morale 2014-04-27 19:12:36 +02:00
parent 58178ab193
commit 4cece04166
3 changed files with 153 additions and 22 deletions
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132
flight/pios/stm32f4xx/pios_ws2811.c
View File

@ -53,10 +53,138 @@ static void genericTIM_OCxPreloadConfig(TIM_TypeDef *TIMx, uint16_t TIM_OCPreloa
// timer creates a 1.25 uS signal, with duty cycle controlled by frame buffer values
/* Example configuration for REVOLUTION
/* Example configuration fragment for REVOLUTION
#ifdef PIOS_INCLUDE_WS2811
#include <pios_ws2811.h>
#include <hwsettings.h>
#define PIOS_WS2811_TIM_DIVIDER (PIOS_PERIPHERAL_APB2_CLOCK / (800000 * PIOS_WS2811_TIM_PERIOD))
*/
// interrupt vector for DMA streamCh1
void DMA2_Stream1_IRQHandler(void) __attribute__((alias("PIOS_WS2811_irq_handler")));
const struct pios_ws2811_pin_cfg pios_ws2811_pin_cfg[] = {
[HWSETTINGS_WS2811LED_OUT_SERVOOUT1] = {
.gpio = GPIOB,
.gpioInit = {
.GPIO_Pin = GPIO_Pin_0,
.GPIO_Speed = GPIO_Speed_25MHz,
.GPIO_Mode = GPIO_Mode_OUT,
.GPIO_OType = GPIO_OType_PP,
},
},
....
[HWSETTINGS_WS2811LED_OUT_FLEXIPIN4] = {
.gpio = GPIOB,
.gpioInit = {
.GPIO_Pin = GPIO_Pin_13,
.GPIO_Speed = GPIO_Speed_25MHz,
.GPIO_Mode = GPIO_Mode_OUT,
.GPIO_OType = GPIO_OType_PP,
},
},
};
const struct pios_ws2811_cfg pios_ws2811_cfg = {
.timer = TIM1,
.timerInit = {
.TIM_Prescaler = PIOS_WS2811_TIM_DIVIDER - 1,
.TIM_ClockDivision = TIM_CKD_DIV1,
.TIM_CounterMode = TIM_CounterMode_Up,
// period (1.25 uS per period
.TIM_Period = PIOS_WS2811_TIM_PERIOD,
.TIM_RepetitionCounter = 0x0000,
},
.timerCh1 = 1,
.streamCh1 = DMA2_Stream1,
.timerCh2 = 3,
.streamCh2 = DMA2_Stream6,
.streamUpdate = DMA2_Stream5,
// DMA streamCh1, triggered by timerCh1 pwm signal.
// if FrameBuffer indicates, reset output value early to indicate "0" bit to ws2812
.dmaInitCh1 = {
.DMA_BufferSize = PIOS_WS2811_BUFFER_SIZE,
.DMA_Channel = DMA_Channel_6,
.DMA_DIR = DMA_DIR_MemoryToPeripheral,
.DMA_FIFOMode = DMA_FIFOMode_Enable,
.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull,
.DMA_Memory0BaseAddr = 0,
.DMA_MemoryBurst = DMA_MemoryBurst_Single,
.DMA_MemoryDataSize = PIOS_WS2811_MEMORYDATASIZE,
.DMA_MemoryInc = DMA_MemoryInc_Enable,
.DMA_Mode = DMA_Mode_Circular,
.DMA_PeripheralBaseAddr = 0,
.DMA_PeripheralBurst = DMA_PeripheralBurst_Single,
.DMA_PeripheralDataSize = PIOS_WS2811_PERIPHERALDATASIZE,
.DMA_PeripheralInc = DMA_PeripheralInc_Disable,
.DMA_Priority = DMA_Priority_VeryHigh,
},
.dmaItCh1 = DMA_IT_TEIF1 | DMA_IT_TCIF1,
// DMA streamCh2, triggered by timerCh2 pwm signal.
// Reset output value late to indicate "1" bit to ws2812.
.dmaInitCh2 = {
.DMA_BufferSize = 1,
.DMA_Channel = DMA_Channel_6,
.DMA_DIR = DMA_DIR_MemoryToPeripheral,
.DMA_FIFOMode = DMA_FIFOMode_Enable,
.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull,
.DMA_Memory0BaseAddr = 0,
.DMA_MemoryBurst = DMA_MemoryBurst_Single,
.DMA_MemoryDataSize = PIOS_WS2811_MEMORYDATASIZE,
.DMA_MemoryInc = DMA_MemoryInc_Disable,
.DMA_Mode = DMA_Mode_Circular,
.DMA_PeripheralBaseAddr = 0,
.DMA_PeripheralBurst = DMA_PeripheralBurst_Single,
.DMA_PeripheralDataSize = PIOS_WS2811_PERIPHERALDATASIZE,
.DMA_PeripheralInc = DMA_PeripheralInc_Disable,
.DMA_Priority = DMA_Priority_VeryHigh,
},
.dmaItCh2 = DMA_IT_TEIF2 | DMA_IT_TCIF2,
// DMA streamUpdate Triggered by timer update event
// Outputs a high logic level at beginning of a cycle
.dmaInitUpdate = {
.DMA_BufferSize = 1,
.DMA_Channel = DMA_Channel_6,
.DMA_DIR = DMA_DIR_MemoryToPeripheral,
.DMA_FIFOMode = DMA_FIFOMode_Enable,
.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull,
.DMA_Memory0BaseAddr = 0,
.DMA_MemoryBurst = DMA_MemoryBurst_Single,
.DMA_MemoryDataSize = PIOS_WS2811_MEMORYDATASIZE,
.DMA_MemoryInc = DMA_MemoryInc_Disable,
.DMA_Mode = DMA_Mode_Circular,
.DMA_PeripheralBaseAddr = 0,
.DMA_PeripheralBurst = DMA_PeripheralBurst_Single,
.DMA_PeripheralDataSize = PIOS_WS2811_PERIPHERALDATASIZE,
.DMA_PeripheralInc = DMA_PeripheralInc_Disable,
.DMA_Priority = DMA_Priority_High
},
.dmaItUpdate = DMA_IT_TEIF6 | DMA_IT_TCIF6,
.dmaSource = TIM_DMA_CC1 | TIM_DMA_CC3 | TIM_DMA_Update,
// DMA streamCh1 interrupt vector, used to block timer at end of framebuffer transfer
.irq = {
.flags = (DMA_IT_TCIF1),
.init = {
.NVIC_IRQChannel = DMA2_Stream1_IRQn,
.NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_HIGH,
.NVIC_IRQChannelSubPriority = 0,
.NVIC_IRQChannelCmd = ENABLE,
},
},
};
void PIOS_WS2811_irq_handler(void)
{
PIOS_WS2811_DMA_irq_handler();
}
#endif // PIOS_INCLUDE_WS2811
*/
/*
* How it works:

18
flight/targets/boards/discoveryf4bare/board_hw_defs.c
View File

@ -1827,8 +1827,6 @@ const struct pios_ws2811_pin_cfg pios_ws2811_pin_cfg = {
};
const struct pios_ws2811_cfg pios_ws2811_cfg = {
// master mode selection Note: configure TIM_CR2_MMS_2 master mode selection
.timer = TIM1,
.timerInit = {
.TIM_Prescaler = PIOS_WS2811_TIM_DIVIDER - 1,
@ -1841,13 +1839,12 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
.timerCh1 = 1,
.streamCh1 = DMA2_Stream1,
.timerCh2 = 3,
.streamCh2 = DMA2_Stream6,
.streamUpdate = DMA2_Stream5,
// DMA ch1, triggered by channel3 pwm signal. if FB indicates, reset output value early to indicate "0" bit to ws2812
// DMA streamCh1, triggered by timerCh1 pwm signal.
// if FrameBuffer indicates, reset output value early to indicate "0" bit to ws2812
.dmaInitCh1 = {
.DMA_BufferSize = PIOS_WS2811_BUFFER_SIZE,
.DMA_Channel = DMA_Channel_6,
@ -1866,8 +1863,9 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
.DMA_Priority = DMA_Priority_Medium,
},
.dmaItCh1 = DMA_IT_TEIF1 | DMA_IT_TCIF1,
// DMA stream 6, triggered by channel1 update event. reset output value late to indicate "1" bit to ws2812.
// DMA streamCh2, triggered by timerCh2 pwm signal.
// Reset output value late to indicate "1" bit to ws2812.
.dmaInitCh2 = {
.DMA_BufferSize = 1,
.DMA_Channel = DMA_Channel_6,
@ -1886,7 +1884,9 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
.DMA_Priority = DMA_Priority_Medium,
},
.dmaItCh2 = DMA_IT_TEIF2 | DMA_IT_TCIF2,
// triggered by pwm update event. output high at beginning of signal
// DMA streamUpdate Triggered by timer update event
// Outputs a high logic level at beginning of a cycle
.dmaInitUpdate = {
.DMA_BufferSize = 1,
.DMA_Channel = DMA_Channel_6,
@ -1906,8 +1906,9 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
},
.dmaItUpdate = DMA_IT_TEIF6 | DMA_IT_TCIF6,
.dmaSource = TIM_DMA_CC1 | TIM_DMA_CC3 | TIM_DMA_Update,
// DMA streamCh1 interrupt vector, used to block timer at end of framebuffer transfer
.irq = {
// Note this is the stream ID that triggers interrupts (in this case TX)
.flags = (DMA_IT_TCIF1),
.init = {
.NVIC_IRQChannel = DMA2_Stream1_IRQn,
@ -1920,7 +1921,6 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
void PIOS_WS2811_irq_handler(void)
{
/* Call into the generic code to handle the IRQ for this specific device */
PIOS_WS2811_DMA_irq_handler();
}
#endif //PIOS_INCLUDE_WS2811

25
flight/targets/boards/revolution/board_hw_defs.c
View File

@ -1969,7 +1969,9 @@ const struct pios_usb_hid_cfg pios_usb_hid_cfg = {
#define PIOS_WS2811_TIM_DIVIDER (PIOS_PERIPHERAL_APB2_CLOCK / (800000 * PIOS_WS2811_TIM_PERIOD))
void DMA2_Stream1_IRQHandler(void) __attribute__((alias("PIOS_WS2811_irq_handler")));
// list of pin configurable as ws281x outputs.
// this will not clash with PWM in or servo output as
// pins will be reconfigured as _OUT so the alternate function is disabled.
const struct pios_ws2811_pin_cfg pios_ws2811_pin_cfg[] = {
[HWSETTINGS_WS2811LED_OUT_SERVOOUT1] = {
.gpio = GPIOB,
@ -2046,7 +2048,6 @@ const struct pios_ws2811_pin_cfg pios_ws2811_pin_cfg[] = {
};
const struct pios_ws2811_cfg pios_ws2811_cfg = {
// master mode selection Note: configure TIM_CR2_MMS_2 master mode selection
.timer = TIM1,
.timerInit = {
.TIM_Prescaler = PIOS_WS2811_TIM_DIVIDER - 1,
@ -2059,13 +2060,12 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
.timerCh1 = 1,
.streamCh1 = DMA2_Stream1,
.timerCh2 = 3,
.streamCh2 = DMA2_Stream6,
.streamUpdate = DMA2_Stream5,
// DMA ch1, triggered by channel3 pwm signal. if FB indicates, reset output value early to indicate "0" bit to ws2812
// DMA streamCh1, triggered by timerCh1 pwm signal.
// if FrameBuffer indicates, reset output value early to indicate "0" bit to ws2812
.dmaInitCh1 = {
.DMA_BufferSize = PIOS_WS2811_BUFFER_SIZE,
.DMA_Channel = DMA_Channel_6,
@ -2084,8 +2084,9 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
.DMA_Priority = DMA_Priority_VeryHigh,
},
.dmaItCh1 = DMA_IT_TEIF1 | DMA_IT_TCIF1,
// DMA stream 6, triggered by channel1 update event. reset output value late to indicate "1" bit to ws2812.
// DMA streamCh2, triggered by timerCh2 pwm signal.
// Reset output value late to indicate "1" bit to ws2812.
.dmaInitCh2 = {
.DMA_BufferSize = 1,
.DMA_Channel = DMA_Channel_6,
@ -2103,8 +2104,10 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
.DMA_PeripheralInc = DMA_PeripheralInc_Disable,
.DMA_Priority = DMA_Priority_VeryHigh,
},
.dmaItCh2 = DMA_IT_TEIF2 | DMA_IT_TCIF2,
// triggered by pwm update event. output high at beginning of signal
.dmaItCh2 = DMA_IT_TEIF2 | DMA_IT_TCIF2,
// DMA streamUpdate Triggered by timer update event
// Outputs a high logic level at beginning of a cycle
.dmaInitUpdate = {
.DMA_BufferSize = 1,
.DMA_Channel = DMA_Channel_6,
@ -2124,8 +2127,9 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
},
.dmaItUpdate = DMA_IT_TEIF6 | DMA_IT_TCIF6,
.dmaSource = TIM_DMA_CC1 | TIM_DMA_CC3 | TIM_DMA_Update,
.irq = {
// Note this is the stream ID that triggers interrupts (in this case TX)
// DMAInitCh1 interrupt vector, used to block timer at end of framebuffer transfer
.irq = {
.flags = (DMA_IT_TCIF1),
.init = {
.NVIC_IRQChannel = DMA2_Stream1_IRQn,
@ -2138,7 +2142,6 @@ const struct pios_ws2811_cfg pios_ws2811_cfg = {
void PIOS_WS2811_irq_handler(void)
{
/* Call into the generic code to handle the IRQ for this specific device */
PIOS_WS2811_DMA_irq_handler();
}
#endif // PIOS_INCLUDE_WS2811