graph TD; A[Power Supply] B[Microcontroller] C[Sensor Module] D[Actuator Module] E[Communication Interface] A --> B B --> C B --> D B --> E
graph TD; A[Power Supply] B[ESP32-WROOM-32] C[AWR6843AOP] D[Actuator Module] E[Communication Interface] A --> B B --> C B --> D B --> E
stevenabragg
copilot
stevenabragg
copilot
- 1.2V Supply: Use a low-dropout (LDO) regulator to derive a 1.2V supply.
- 1.8V and 3.3V Supplies: These can also be derived using LDOs from a higher supply voltage.
Key Connections-
Power Pins: Connect the power supply pins to their respective voltage levels:
- Connect P1:V1 to the 1.2V supply.
- Connect P2:V2 to the 1.8V supply.
- Connect P3:V3 to the 3.3V supply.
-
Ground Pins: Connect all ground pins to the common ground plane.
-
Decoupling Capacitors:
- Place 0.1 µF and 10 µF decoupling capacitors close to each power pin.
- Connect C1:1 to P1:V1 and ground, and C1:2 to ground.
- Similarly, place capacitors for other power pins.
-
Data Interfaces:
- If using SPI: Connect the SPI pins (MOSI, MISO, SCLK, CS) to the corresponding microcontroller pins.
- Connect MCU1:MOSI to AWR6843AOP:MOSI.
- Connect MCU1:MISO to AWR6843AOP:MISO.
- Connect MCU1:SCLK to AWR6843AOP:SCLK.
- Connect MCU1:CS to AWR6843AOP:CS.
-
JTAG Interface: For debugging, connect the JTAG pins to a compatible debug interface.
-
Crystal Oscillator:
- Connect a 40 MHz crystal oscillator to the corresponding pins.
- Add load capacitors as specified in the datasheet recommendations.
Layout Considerations