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#Hardware
Load device tree
To load the BBBMINI device tree type startup.sh load.
Build dtbo file
To rebuild the dtbo file type make and than make installto copy the dtbo file to /lib/firmware.
Pin assigment
RCInput
| BBB |
RC Receiver |
Remark |
| P8.15 RC_IN |
RC Out (Spektrum / PPM-sum) |
|
RCOutput
| BBB |
ESC / Servo |
Remark |
| P8.28 |
RC_OUT_CH_1 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.27 |
RC_OUT_CH_2 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.30 |
RC_OUT_CH_3 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.29 |
RC_OUT_CH_4 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.40 |
RC_OUT_CH_5 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.39 |
RC_OUT_CH_6 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.42 |
RC_OUT_CH_7 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.41 |
RC_OUT_CH_8 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.44 |
RC_OUT_CH_9 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.43 |
RC_OUT_CH_10 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.46 |
RC_OUT_CH_11 |
Use level shifter 3.3 Volt to 5 Volt |
| P8.45 |
RC_OUT_CH_12 |
Use level shifter 3.3 Volt to 5 Volt |
SPI0
| BBB |
Sensor |
Remark |
| P9.22 |
SPI0_SCLK |
not used |
| P9.21 |
SPI0_MISO |
not used |
| P9.18 |
SPI0_MOSI |
not used |
| P9.17 |
SPI0_CS |
not used |
SPI1
| BBB |
Sensor |
Remark |
| P9.31 |
SPI1_SCLK |
MPU9250, MS5611 |
| P9.29 |
SPI1_MISO |
MPU9250, MS5611 |
| P9.30 |
SPI1_MOSI |
MPU9250, MS5611 |
| P9.28 |
SPI1_CS0 |
MPU9250 CS |
| P9.19 |
SPI1_CS1 |
MS5611 CS |
UART4
| BBB |
Sensor |
Remark |
| P9.11 UART4_RXD |
not used |
|
| P9.13 UART4_TXD |
not used |
|
UART5 GPS
38400,8,n,1
| BBB |
Sensor |
Remark |
| P8.38 UART5_RXD |
GPS_TXD |
|
| P8.37 UART5_TXD |
GPS_RXD |
|
Sound (PWM)
| BBB |
Speaker |
Remark |
| P8.36 |
PWM |
Use a power amplifier |
mirkix
b88dc40e79