Fix channel selection for DMA2 Stream6. #10029
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To use Channel6 which is only for TIM1_CH3 instead of the Channel0 which is for TIM1_CH1, TIM1_CH2 and TIM1_CH3.
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For TIM1_CH3 the wrong Channel gets selected during timer definition/configuration.
Correct is to use Channel6 which is only for TIM1_CH3 instead of the Channel0 which is for TIM1_CH1, TIM1_CH2 and TIM1_CH3.
See also https://github.com/iNavFlight/inav/blob/release_7.1.1/src/main/drivers/timer_def_stm32f4xx.h#L35
and table below
At start up, when only the DSHOT command 0 is send, everything is ok.
But as soon as other commands/values are send then this happens:
Additional Infos:
Tested on Target: FLYWOOF411
But the other controllers (F405 and F722) have the same DMA request mapping.
ESC protocol: DSHOT300