In the data sheet of STM32L4, it cautions me that "Do not connect the PC to the ST-LINK(CN7) when R30 is soldered. The PC may be damaged or the board may not be powered correctly.". But I found that R30 has benn soldered when i got it. What should i ...
Hello circuit designers and PCB guys,I have a problem of how to connect the H7 ethernet via a PHY and a ethernet USB bridge.to the outside world:ethernet connection via RJ45 to hostUSB connection to host (e.g. laptop without ethernet)I must NOT use t...
I have a system based on STM32F103 microchip. It has a PCB boot0 pin which is used only when flashing new firmware. During the daily usage of the system, the PCB boot0 is not connected to anything. I have always connected to 1.5 Volts input in order ...
Hi, I'm using an STM32H745IIT6, in the package I have there are also the SMPS pins. But in my application I don't have to use the SMPS.The question is, what should I do with these pins:Searching the internet, I saw that someone connects them all to g...
I need the STM32h723 reference schematic for the eMMC.
I lost the firmware for this control box while playng around with ST_Link.It is a control box for loadcell pedals for sim racing.Its from a generic brand SimJack. I cannot find any product details for this and cant locate any firmware.It reads the l...
Hello,does anyone know what the maximum cable length is for the ST-Link programmer (20-pole ribbon cable)?Maybe someone has experience with this?Is it possible to bridge longer distances, e.g. 50 metres? (not the USB cable, but the 20-pole ribbon cab...