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DSHOT on Mbed

Page last updated 27 Apr 2019, by Blake West. 2 replies DMA, Dshot, esc, quadcopter

Overview

Implementation of DSHOT ESC Protocol on the MBed using DMA

Sending DSHOT Messages

DSHOT frame is 2 bytes
- Throttle level, 11 bits
- Telemetry Request, 1 bit
- CRC, 4 bits

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/media/uploads/bwest32/dshot_packet2.png

DSHOT protocols runs at several different baud rates:

1's and 0's are generated through different high signal pulse widths. Where 1 and 0 is represented by a 74.850% and 37.425% duty cycle respectively.

/media/uploads/bwest32/sequencing_chart.png

To arm the ESC, send a throttle command. Then a throttle of zero. 600

DSHOT150 algorithm using digital IO pins on the LPC-1768

# 01 Jul 2020

Is this dshot frame supposed to be sent continuously or with pauses between them?

It there start/stop bit or something?

how the receiving part is supposed to distinguish between dshot frames?

# 02 Oct 2020

Hi! I know this is an old post but I think this will help :)

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