Please recommend a USB to serial converter for STM32 update

lin62485145

Please recommend a USB to serial converter for STM32 update [Copy link]

                                 I need to upgrade the software of the factory-made device, which only has a serial port. If I use the serial port on the PC motherboard, there is no problem; if I use the USB to serial port method, it is difficult to succeed. Please recommend a converter. Thank you.

hanzhenwei

It is recommended to use CP2102. I have a small project here that uses it. This is
the schematic diagram of CP2102
http://lxyppc-oled.googlecode.co ... /PDFPreView/IAP.pdfThis
is the schematic diagram of STM32
http://lxyppc-oled.googlecode.co ... PDFPreView/oled.pdfThe

two circuits are connected through IAP

hzhanhai

                                 It is best to buy industrial grade converters, otherwise they will break easily.

tvn

Thank you.
From the actual use, including Z-TEK adapter cable, the software update cannot be realized normally. Is it because the signals of the USB-RS232 adapter cable and the real RS232 are different?

chg4476

                                 Try MOXA's USB to serial converter

cogsz

                                 What does it mean to be difficult to succeed? What problems did you encounter?

010203www

                                 Very easy to be disturbed

bluejb119

In terms of compatibility, PL2303, CP2102, FT232 chips can be used well for STM32 ISP
USB devices are generally susceptible to interference.
In many cases, interference can only be prevented through software.

现实主义

In terms of compatibility, PL2303, CP2102, FT232 chips can be used well for STM32 ISP
USB devices are generally susceptible to interference.
In many cases, interference can only be prevented through software.

Because the device is in the hands of the user, we hope to use ST's flashloader and STM32's usart1 to implement software updates. Now there are fewer and fewer PCs with RS232 interfaces, so we have to use USB TO RS232 conversion.
LS: Does software simulation interference mean writing tool software similar to flashloader by yourself?