User Manual WIZ-IP55 (WIZnet) - 9

WIZ-IP55 User Manual 2.2 Introduction to the Development Board
The IO module carrier board is a development board that facilitates users to test and apply the modules. This development board integrates the mainstream single-chip microcontroller STM32F103RCT6 and the USB to TTL converter chip CP2102.The schematic diagram of the IO module carrier board is shown in Figure 2 and Figure 3. Figure 2-3: Outline drawing of the IO module carrier board  The USB Mini interface provides 5V DC power supply for the development board and one serial port for the MCU, which can be used for ISP-style program download and data communication testing.  Key instructions for the IO module carrier board Table 2-2 IO module carrier board Key Instructions
Numbering Explanation
RESET（SW1） Hardware reset button BOOT（SW2） Enter the BOOT button of the microcontroller  Download method for the IO module carrier board program The IO module carrier board supports the ISP download method. The operation steps are as follows: first, press and hold the BOOT button, then press the RESET button once, and finally release the BOOT button. This will enable you to enter the program download mode. Open the ISP tool of STM32 and select the corresponding firmware to complete the download.
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