Hi, I'm using the STM32L451VC microcontroller. I'm trying to measure the analog input with an internal ADC (12 bits resolution). The value is compensated with the vrefint (1.21V) of the microcontroller, following the next formula: Vchannel = (3 V · (...
I'm after a low power STM32 with DAC outputs.ST Application note AN4566 states in table 1 on the first page that there are processors in all the STM32 ranges that have a 12 bit DAC. The MCU selector also doesn't make the DAC box selectable or desele...
I have two sets (set A, set B) of 3 ADC channels that I'm sampling using continuous multi mode w/ DMA. For latency reasons, I'd prefer to sample set A for a while (let's say 1 msec), followed by sampling set B for a while, followed by sampling set A ...
It is not very clearly writen how to use external SMPS.Do I need to set any registers or anything like that ?My system will run at 81MHz, and i want to reduce power consumption. I have DCDC and Switch control. IT looks like enabling DC/DC reduces cur...
I'm new to Cortex-M, STM chips, and the STM32L4R5 in particular, and am having problems getting this working. I have used ARM chips (since ARM2 :-), Atmel <x|mega>AVR and the Raspberry Pi Cortex-A chips...I seem to be the only person who prefers asse...
Hi,I am triying to use the standby mode and save some data into EEPROM memory, but when i start the erase eeprom process before to save data, my program is blocked. I think that my code have a 89% of flash size and eeprom area have a program code.I n...
Good afternoon,I have developed my application based on STM32L4 family. Application is working fine on my custom board but I have a doubt when debugging the board usign ULINK2 tool with Keil: when I debug the board, and I have a look to 'Watch' windo...
Hello, I'm using the STM32L451VC microcontroller to perform a communication through I2C protocol to a programmable resistor (AD5272). It is working well when I do a NRST to the microcontroller, but when I start the program from the batteries (without...
Hi all,I'm new with the PWM business, so, I'm referring the sample code (TIM_PWM_Input) provided in STM32F2XX stranded peripheral library . In the readme.txt file it is mentioned that we can measure minimum 915Hz frequency. But in my application, I w...
I am working with the STM32F446 microcontroller and I need to detect when a 50 Hz (plus-minus 2 Hz) square wave signal is turned on and off, respectively. The signal is connected to a pin that has TIMx_CHy alternate functionality. Is there a way to a...
