هدر برد Mini STM32F103C8T6 با رابط سریال CH340
Mini stm32f103c8t6 ch340 development board original chip micro controller core board arm architecture minimal system Correx-M3
Description
Introduction
MINI32 designs and manufactures core boards based on STM32F103C8T6, with a focus on small volume and TYPE-C ports
Data transmission (either serial port or USB), MINI32 can download programs through the onboard serial port. Small volume is the same as
Lead out all IO ports on both sides of the needle row, and separately lead out the SWD download port (both sides of the needle row IO ports are simultaneously led out)
Applicable to small volume control schemes
TYPE-C: Choose between power input and USB/serial port (CH340N)
Key: RST (reset button), BTO (BOOT mode selection button)
LED: PWR (POWER power indicator), C13 (user control indicator), PC13 control LED negative Extreme
Note: PIN TO PIN pin compatible chips are applicable to this core board, not limited to a single MCU, for exampleExamples include GD32F103C8T6, CH32F103C8T6, AT32F103C8T6, etc. Please do your best when conditions permit Use domestically produced MCU for quantity
PCB external dimensions (excluding SWD download port): 25.40 * 22.86mm (100mil=2.54mm)
PIN spacing: 2.54mm
The distance between the needle rows on both sides: 15.24mm (600mil) on the inner side and 20.32mm (800mil) on the outer side
About TYPE-C port function selection
The core board pursues a small size with a single TYPE-C port design, and the USB and serial port functions are optional and mutually exclusive Excluding design, when welding U2 (CH340N) and not welding R4 and R5, the C port is used as a serial communication function,When welding R4 and R5 without welding U2 (CH340N), the C port is used as a USB communication function
About the Hardware Design of TYPE-C Port CC Port
Both CC1 and CC2 pins are suspended: only the USBA to TYPE-C data cable can be used for power supply
Short circuit CC1 and CC2 pins and pull down 5.1K resistor: use fast charging power supply and EMARK core simultaneously
The dual C-port data cable of the chip will not be powered, and all other configurations can be powered normally
CC1 and CC2 pins pull down 5.1K resistors respectively: standard design, both can be powered, recommended for use
Note: Actual design needs to consider factors such as PCB layout, usage scenarios, and costs. Please design according to your needs
About Serial Port Download
:Enter BOOT mode
Hot entry: Press and hold the reset and BOOT buttons simultaneously, first release the reset button for about 1 second, then release the BOOT button
Press the button to enter BOOT download mode
Cold entry: Press and hold the BOOT button, then connect the USB power for about 1 second, then release the BOOT button to enter
BOOT download mode
STM32/CH32 serial port download interface
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