2020-09-26 04:52 AM
It is from UM1472 User manual ,,,
file:///C:/Users/Yeni/Desktop/stm32F407/dm00039084-discovery-kit-with-stm32f407vg-mcu-stmicroelectronics.pdf ,,,
I am trying to use UART with Tera Term,
As can see ,
The ST-LINK/V2-A supports a virtual COM port (VCP) on U2 pin 12 (ST-LINK_TX) and U2 pin 13 (ST-LINK_RX) but these pins are not connected to the USART of the STM32F407 microcontroller for mbed support.
I did not understand the solutions of connection of ST-LINK/V2-A with virtual COM port
also one of solution says "Using flying wires " how is it possible,using flying wires with SMD mcu
Could you help me please
Solved! Go to Solution.
2020-09-26 11:38 AM
Yes, typically a FTDI or SiLabs USB-To-CMOS Serial type adapter, at 3 or 3.3V
The levels here are not RS232 compatible.
If you just need debug output, the PB3 SWO should be wired, or a solder-bridge away.
Here you'd use a SWV Serial Wire Viewer application, either in the ST-LINK Utilities, or newer STM32 Cube Programmer.
2020-09-26 05:23 AM
You need thin wires and someone who can solder in tight spaces.
Typically done under a microscope, with flux, and fine tip.
2020-09-26 08:35 AM
Mr.Thank you very much for information
Could you tell me please about first solution
its says "USB dongle from market" is it like a USB to TTL converter?
2020-09-26 11:38 AM
Yes, typically a FTDI or SiLabs USB-To-CMOS Serial type adapter, at 3 or 3.3V
The levels here are not RS232 compatible.
If you just need debug output, the PB3 SWO should be wired, or a solder-bridge away.
Here you'd use a SWV Serial Wire Viewer application, either in the ST-LINK Utilities, or newer STM32 Cube Programmer.
2020-09-27 03:44 AM
Mr.
Thank you very much for informations