d_power/B-G474E-DPOW1_Keil

B-G474E-DPOW1 Keil DCDC Starter

Starter project for Keil MDK/uVision and the ST B-G474E-DPOW1 Discovery kit.

What is included:

• printf retarget to ST-LINK VCP: USART3 on PC10/PC11, 115200 baud.
• HRTIM1 Timer C setup for the onboard buck leg: PB12/PB13, 200 kHz, complementary outputs, dead-time.
• ADC monitor for PA1 VIN, PA2 input current average, PA3 VOUT.
• Readable voltage/current protection and a small starter PI voltage loop.

Important safety defaults:

• DCDC_POWER_STAGE_ENABLE is 0 in Core/Inc/app_config.h. The firmware configures peripherals and prints measurements, but HRTIM outputs remain disabled.
• Before setting it to 1, check JP1/JP5, use a current-limited VIN source, connect a safe load, and verify PB12/PB13 dead-time with an oscilloscope.
• DCDC_CONNECT_USBPD_INPUT is also 0. Set it to 1 only if JP1 is prepared to feed VIN from USB-PD and the USB-PD source is appropriate.

Open B-G474E-DPOW1_DCDC.uvprojx in Keil and build the target B-G474E-DPOW1_DCDC.

The project references the local Keil packs under C:\Keil_v5\ARM\Packs. If Keil is installed elsewhere, update the include paths and startup file path in the uVision project options.