drv_dshot.c File Reference

This files enables the gpio, timer, and dma peripherals to send dshot commands with pwm. More...

#include "board.h"

Functions
void	dshotInit (dshot_type_e dshot_type)
	Initializes the low level registers to set up the timer with PWM DMA. More...
void	dshotWrite (uint16_t *motor_value)
	Writes to the DMA buffer and starts the DMA stream. More...
void	dshotWait (uint16_t wait_counts)
	Waits for a certain amount of dshot commands. More...
void	DMA1_Stream2_IRQHandler (void)
	This function handles DMA1 stream2 global interrupt. More...
void	DMA1_Stream4_IRQHandler (void)
	This function handles DMA1 stream4 global interrupt. More...
void	DMA1_Stream0_IRQHandler (void)
	This function handles DMA1 stream0 global interrupt. More...
void	DMA1_Stream3_IRQHandler (void)
	This function handles DMA1 stream3 global interrupt. More...

Variables
volatile uint16_t	dshot_command_count = 0
bool	dshot_telemetry = false

Detailed Description

This files enables the gpio, timer, and dma peripherals to send dshot commands with pwm.

Author

Jeremy Wolfe

Date

23 FEB 2022

Function Documentation

DMA1_Stream0_IRQHandler()

void DMA1_Stream0_IRQHandler

(

void

)

This function handles DMA1 stream0 global interrupt.

DMA1_Stream2_IRQHandler()

void DMA1_Stream2_IRQHandler

(

void

)

This function handles DMA1 stream2 global interrupt.

DMA1_Stream3_IRQHandler()

void DMA1_Stream3_IRQHandler

(

void

)

This function handles DMA1 stream3 global interrupt.

DMA1_Stream4_IRQHandler()

void DMA1_Stream4_IRQHandler

(

void

)

This function handles DMA1 stream4 global interrupt.

dshotInit()

void dshotInit

(

dshot_type_e

dshot_type

)

Initializes the low level registers to set up the timer with PWM DMA.

Parameters

dshot_type

DSHOT150/300/600. Allows you to adjust the speed. DSHOT600 is preferred

Returns

Void.

dshotWait()

void dshotWait

(

uint16_t

wait_counts

)

Waits for a certain amount of dshot commands.

Parameters

wait_counts

Number of commands to wait for.

Returns

Void.

dshotWrite()

void dshotWrite

(

uint16_t *

motor_value

)

Writes to the DMA buffer and starts the DMA stream.

Parameters

*motor_value

A four length array with elements from 0 to 2047.

Returns

Void.

Variable Documentation

dshot_command_count

volatile uint16_t dshot_command_count = 0

dshot_telemetry

bool dshot_telemetry = false