STM32 MCUs Embedded software

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PLL initialization defect on Nucleo F767ZI

In main.c, SystemClock_Config(), the PLL is set up as follows:... RCC_OscInitStruct.PLL.PLLM = 25; RCC_OscInitStruct.PLL.PLLN = 400;  ... RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;...The implication is that the clock is 25MHz, and being divided down...

Sean1 by Associate II
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STM32F105 USB Device not detected on PC

I have generated USB CDC code using STM32CubeMX with firmware 1.7.0. When I run the code, nothing is detected on the PC. I have disabled VBUS sensing and made sure USB peripheral Clock is enabled. I am using external 25MHz crystal and verified by PL...

fm by Associate II
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Seeking A-to-Z for STM32F042 usb to Android

I have a small third-party board with an STM32F042 on it. When I connect it via USB to my Windows 10 computer, it automatically shows up as a COM port. When I connect it to my Ubuntu (VM), it also automatically shows up as /dev/ttyACM0. I also see th...