search

betaflight / config

Betaflight target definitions
GNU General Public License v3.0
24 stars 85 forks source link

Add a new target kakuteF4wing #456

Open jamming opened 3 weeks ago

jamming commented 3 weeks ago

KakuteF4wing is made smaller and lighter. It cover an area of 25x30mm. 1) 6 PWM channel are: 2 motor pads and 4 servo with THT 2) 5 serial ports, one with inverter on the RX of a UART for traditional SBUS 3) 1 external I2C 4) analog OSD 5) Independent 5V 3A BEC for servo 6)16MB onboard flash memory 7) Based on STM32F405 8) Simple PDB with 2BECs (5V/3A) 9) 2 ADC 10) Shunt resistance up to 90A.

ot0tot commented 3 weeks ago

Which pins are motor outputs and which are servo outputs? Should the servos be assigned as a SERVO resource instead of a MOTOR resource?

As-is, motors 1-4 conflict with DMA for SPI3 (flash), which will cause poor blackbox performance if they are used for DShot output.

Also, LED_STRIP on PA1 has a DMA conflict with SPI2_TX, which will negatively impact analog OSD when LED_STRIP is enabled.

jamming commented 3 weeks ago

I am not aware that FLASH and OSD also need to use DMA. This board is currently a prototype board, and I will change the pinmap and test them in the next two days to ensure that TIMER and all SPIs have DMA. The new DMA MAP will be as follows:

# DMA1 Stream 0  :  SPI3_RX      :FLASH
# DMA1 Stream 2  :  TIM3_CH4  :PWM4
# DMA1 Stream 3  :  SPI2_RX      :OSD
# DMA1 Stream 4  :  SPI2_TX      :OSD
# DMA1 Stream 5  :  SPI3_TX      :FLASH
# DMA1 Stream 6  :  TIM2_CH2  :LED_STRIP
# DMA1 Stream 7  :  TIM3_CH3  :PWM3

# DMA2 Stream 0  :  SPI1_RX       :IMU
# DMA2 Stream 1  :  TIM1_CH1  :PWM1
# DMA2 Stream 2  :  TIM8_CH3  :PWM5
# DMA2 Stream 4  :  ADC1          :BAT_I/V
# DMA2 Stream 5  :  SPI1_TX      :IMU
# DMA2 Stream 6  :  TIM1_CH2  :PWM2
# DMA2 Stream 7  :  TIM8_CH4  :PWM6

Thank you for your help!

Which pins are motor outputs and which are servo outputs? Should the servos be assigned as a SERVO resource instead of a MOTOR resource?

As-is, motors 1-4 conflict with DMA for SPI3 (flash), which will cause poor blackbox performance if they are used for DShot output.

Also, LED_STRIP on PA1 has a DMA conflict with SPI2_TX, which will negatively impact analog OSD when LED_STRIP is enabled.

sugaarK commented 5 days ago

https://betaflight.com/docs/development/manufacturer/config-target-guidance

please read and follow @jamming