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3.1.22：Interface Board

PowerWriter provides PW200,PW300, PWX1 adapter boards.The adapter board introduces a large number of orderly interfaces, facilitating the pin confirmation and wiring during the burning process.

1：Write Interface Board​

1.1 Interface Board Size​

The PW200 or pw300 of the adapter board is shown below:

image

image-20250911115528520

The PWX1 of the adapter board is shown below:

image-20250816123825806

image-20250816123849357

1.2 Interface Board Instructions​

PW200/PW300 :The adapter board is used as shown below.

image

PWX1 :The adapter board is used as shown below.

image-20250911115608713

Notes for the PWX1 adapter board:

In order to allow the production equipment to have a more adaptable range of impedance, the PowerWriter X1 comes with an adapter board that provides an additional, 0~100R adjustable impedance resistor, in addition to the output impedance of the X1 equipment, as shown in the figure below.For more information on impedance matching, please refer to this chapter.Impedance

image-20250911115740298

The red frame is for ISP unlocking. If there is no need for ISP unlocking, it will default to the middle position.

image-20250911115645821

The red box indicates the resistance values of the resistors in series with SWDIO and SWCLK.

  • Turn counterclockwise to decrease the resistance.
  • Turn clockwise to increase the resistance.
  • If communication is unstable or signal reflection is severe, increasing the resistance will help improve the situation.

​

2.1Basic Information​

  • Insulation voltage：5000Vrms

  • Speed：150Mbps (MAX) / Debugging Clock > 10Mhz

  • Data latency：6.54us (typical values)

  • VREF Voltage Range：2.5V ~ 5.5V

  • Supported Devices：

  • Power Debugger

  • PW200

  • PW300

  • PW400

  • PWX1

PowerDebugger​

Supported protocols: UART, SWJ, JTAG, wiring diagrams are referenced below:

image-20240116164609260

tip

VREF B Requires power from the target board, voltage range 2.5V to 5.5V, Power Debugger IO voltage set to 3.3V or 5V, Serial port isolated, need to be accessed from the green independent 4PIN.

PW200/PW300​

Supported protocols: UART, SWJ, SWIM, ITM(SWO), wiring diagrams are referenced below:

image-20240116165101421

tip

VREF B Requires power from the target board in the range of 2.5V to 5.5V, with the PowerWriter® IO voltage set to 3.3V or 5V (no external reference can be set).

PW400​

Supported protocols: UART, JTAG, wiring diagrams are referenced below:

image-20240116165241568

tip

VREF B Requires power from the target board in the range of 2.5V to 5.5V, with the PowerWriter® IO voltage set to 3.3V or 5V (no external reference can be set).

caution

GND to L needs to be adjusted (see Change for PW400).

PWX1​

Supported protocols: UART, JTAG, SWJ, PWM, SWIM, wiring diagrams are referenced below:

image-20240116165551535

tip

VREF B needs to be powered from the target board with a voltage range of 2.5V to 5.5V with the PowerWriter® VREF voltage set to 3.3V or 5V (no external reference can be set).

tip

If you need to write STM8, you should short the green resistor bit as shown (see Short for SWIM).