SWDPD-Debug-Probe-over-TypeC

Board with online and offline firmware flashing via SWD, power control via PD and communication via USB.

The project is currently at the concept stage. Technical specifications may change in the future.

Overview

SWDPD is a universal, multifunctional, and compact programmer and debugger that offers a fundamentally new approach to the development of embedded systems using the versatility of the USB Type-C standard. The programmer combines a range of very advanced features, such as support for SWD protocols for programming and UART/SPI/I2C/UART/PD for communication with the programmable device, integrated power control and monitoring systems, protection against overload/voltage surges/electrostatics, and compatibility with 3.3V/5V logic. The presence of built-in memory and an OLED display allows saving firmware or interface testing protocols on the programmer and using it offline without a computer.

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✨ Features

• Reset via power supply reboot
• logging to internal memory
• OLED display for interaction

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💻 Applications

• 🔧 Ontline or Offline SWD programmer and debuger
• 🔌 PD trigger with message interception
• ⚡ Portable Laboratory Power Supply (LPS) with:
  • 5-21V: 20mV steps in SPR PPS Mode
  • 20-48V: 100mV steps in EPR AVS Mode
• 🔋 Battery Charger Controller (an external BMS may be required)
• 📈 Portable power meter

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⚡Electrical characteristics

• Input voltage: 5-50VDC with surge protection
• Current ratings: 5A continuous with overcurrent protection
• VBUS Line Resistance: 70mΩ max (40mΩ contact resistance + 15mΩ mosfet RDSON + 10mΩ current sensing resistor + 5mΩ traces resistance)
• System voltage source: internal synchronous DC-DC converter
• System power consumption: <100mW
• Integrated load switch
• Integrated power meter resolution:
  • Voltage: 0-48V with 0.1mV step
  • Current: 0-6A with 0.1mA step
  • Power: 240W with 0.01mW step

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🔄 Programming capabilities

• Supported target communication interfaces:
  • SWD (DIO and CLK) with line auto detection
  • Power Delivery 2.0 / 3.0 / 3.1 with SPR and EPR support on both connectors
  • QuiqCharge
  • Half duplex SPI 2 wire (DIO and SCL)
  • Classic UART and UART Single Wire
  • I2C with digital controlled 3.3V 2.2kΩ pull-up
• Program-Selectable USB2.0 endpoint: SWDPD Programmer or Target Device
• Interface frequency: up to 30MHz
• External FLASH memory size: 16MB для хранения прошивок и инструкций тестирования

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🖥️ MCU Performance and External interfaces

MCU: High-performance Arm Cortex-M4 MCU STM32G431CB running at 170MHz with:

• 128KB Flash memory and 32KB SRAM memory and 1Kb OTP
• Math accelerator with trigonometric functions calculations support;
• True random number generator
• Internal HSI and RTC with external oscillator option

I/O protection features:

• ESD protection (persistent against electrostatic discharge)
• All interfaces are 5V-tolerant
• Reverse polarity signal protection
• Overcurrent protection

User interaction:

• 3 programmable custom user buttons (one can be used as reset button)
• 1.3" OLED Display for user interface

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📏 Mechanical data

• Size dimensions: 22.5x57x12 mm
• Weight: <15 gramms

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🔥 Operating conditions

• Working temperature range: -25 to +80 degrees Celsius
• Environment humidity range: 0 to 90%
• Environmental safety: Lead-Free and RoHS compliance
• Maximum heat dissipation: 1.9W

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📝 TODO

• WiFi for wireless access
• 1Gbyte memory
• Dual direction power mosfet
• Programmable logic level
• JTAG pogo
• Dual-Core H7 MPU

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Supporting the Project

If this project resonates with you, please consider the following ways to support its development:

• Ko-fi: Preferred for membership subscription and one-time donation
• Patreon: Alternative platform with higher fees
• Join Discord community: Stay updated, engage in discussions, and contribute to the project

Your contribution, regardless of size, is greatly appreciated!

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Important Note: This README will be updated to reflect the latest progress and changes in the project.