Reference Power and Clock Circuitry for STM32F407VGT6 Custom Board Design
Hello ST Community,
I am currently working on a project involving a fuel dispenser control panel and have been prototyping using the STM32F407VGT6 Discovery board. During the development phase, I connected the following peripherals:
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OLED display via I2C
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External EEPROM (24CXXX series)
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4x5 matrix keypad
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RS485 transceiver via USART2 (TTL to RS485)
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RS422 transceiver via USART3 with DE/RE control on pin PD13
As the prototype phase is nearly complete, I am now preparing to design a custom PCB based on the STM32F407VGT6 microcontroller.
I kindly ask for a recommended reference schematic or design guidelines that cover the essential external circuitry for the STM32F407VGT6, specifically:
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Power supply filtering and regulation (including recommended capacitors, analog/digital separation, VCAP, etc.)
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Clock configuration (main crystal oscillator, RTC crystal, load capacitors)
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NRST and BOOT0 pin handling
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Any other critical hardware considerations to ensure reliable operation of the MCU in standalone configuration.
I will be handling the external peripherals separately, so only the core MCU circuitry is needed.
If ST provides a minimal schematic or application note that is suitable for this case, I would appreciate it if you could share the link.
Thank you in advance for your support and best practices!
Best regards,
Azizbek