LT FT4232HL FT4232 development board USB to serial port JTAG SPI I2C openOCD customize

Use FT4232HL to convert from USB to multiple interfaces, such as UART / SPI / JTAG / I2C, etc.
For detailed functions of the chip, please refer to its data sheet.
【description】
Dimensions (length×width×height): 103×45×14mm
PCB size (length×width×thickness): 95×45×1.6mm

Power mode: +5V, connected to CN3 via USB port cable.
All functional pins have pins, which can be easily connected to the peripheral modules of DuPont cables.
ESD protection circuits are added to the signal pins of CN3 and CN4. See the schematic for more details.
CN1: 2.54mm pitch 1×20 needle single row needle;
CN2: 2.54mm pitch 1×20 single row pin;
CN4: 2.54mm pitch 2×10 needle double-row curved single needle horn base.
The distance between CN1 and CN2 is 1,400 thousand, that is, 14x2.54 = 35.56mm.