kicad-projects/AC-LED-Control/notes.md
2018-07-10 17:59:08 -06:00

875 B

General Design Notes

STM32

Vss is ground.

Bypass

VDD Needs:

  • 2x 100nF
  • 1x 4.7 uF

VDDA Needs:

  • 1x 10nF
  • 1x 1uF

Pin Stuff

External interrupts can be assigned to any GPIO pin.

SWDIO is PA13 SWCLK is PA14

Internal clock so OSC_IN and OSC_OUT pins can be NC.

NRST is active low reset.

UART Flash Uploading

If BOOT0 is pulled up I think it boots a bootloader that can reprogram flash through USART. Test this out on my dev board.

Not going to test this, no real sense in doing this when I have an ST-LINK/V2 anyways.

74HC595

RCLK latches data from the shift register to the output register. SRCLK clocks in data from SER (and shifts all data around) SRCLR clears the shift register OE is output enable.

QH' is an output pin, it clocks out the value in QH.

I2C

STM32F030 I2C Pins:

  • PA9: I2C1_SCL
  • PA10: I2C1_SDA