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I am using the NUCLEO-L433RC-P with the blue top switch (pin PC13) configured as a wake pin.When the switch is pressed, the MCU should wake, then turn the LED on, then shutdown.But for some reason the MCU wakes twice as observed by the following beha...
ST moderator: post split from this thread. @mƎALLEm , Thanks for this information. So, it appears, that - apart from the confusing footnote in Fig.118 - the probem was probably somewhere in @y_liosha 's code, correct? Can you also please have a look...
Hi All, In my application, I am using the STM32L451RCT6 and trying to configure COMP2 with the internal Vref as a reference (specifically 3/4 Vref). For some reason, it never worked. I was only able to get it working when using DAC_CH1 or an externa...
The AN3156 explains on page 18 the Read Unprotect Command:This command is selected when wValue = 0 and the first byte of the buffer sent by the host is 0x92. The buffer length is only one (the command) byte.The host sends a DFU_DNLOAD request with th...
C5 implements a way to de-activate selected boot devices. This will allow to use the system bootloader on custom board were some activity on pins used by the bootloader but not used for the bootloader would inhibit use of the bootloader. This featur...
Hi,I already tried to search for previous threads that could help me (like this one), sadly without success.I'm currently studying the ADC peripheral on STM32F3DISCOVERY from the reference manual. I started writing a simple program to measure a tensi...
We are using STM32H743 and STM32H745 in our product lines and embedded bootloader is used for boot loading. The PB14 pins is used as Debug Uart on USART1. The PA9 pin is left unconnected. Its Not Connected pin. Is there any impact on this upgrade. ...
I am using NUCLEO-F303RE board. I couldn't find ES and E marking in the product information of the datasheet. Does it mean it is not "ES" and "E" marked. can any one please confirm it.
Hi, I'm using the STM32C071K8U6's built-in USB DFU bootloader for one-time production programming. After flashing, PA11/PA12 (USB D+/D-) are used as regular GPIO outputs to control two P-MOSFETs (each with their 100kΩ gate pull-ups to 4.2V). The US...
I am writing code for a system where a STM32F1 communicates with the 8-bit data bus of another CPU (a 65C816). The STM32's GPIO pins are presented to this CPU as memory-mapped registers via a set of latches and bus transceivers. When the CPU attempts...
