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Hi I am using the STM32L433 100 pin which has the internal 2.5v vref buffer for the ADC. I am getting readings, not accurate, from the adc . Looking at the data sheet the internal vrefbuf is tied directly to the VREF+ pin, and when I measure that pin...
Posted on January 26, 2018 at 21:05 Hi, I'm writing an application with a STM32L051 (32 pin, 64kB ROM). This application uses the RTC and I wanted to use the RTC periodic auto wake-up feature to update the time display every 60 seconds. THE...
I need to accurately time the delay between two rising edges being triggered (charging time of a capacitor). The device I'm testing this out on is on a Nucleo-H743ZI but eventually want it to run on a Nucleo-F446RE so am not looking to use the HRTIM ...
Hello,I've heard that some bugs have been found on Cortex M7 related to cache management, and that the STM32H7 will embed the fixed version of Cortex design. But I can't find when this updated version of STM32H7 will be available. Also, where (in wha...
hi ，I have some problms about FMC-SRAM with own r&d board based on stm32h750，hope someone give me some hlps�? Now we have a strange problem that we operate on an external 16-bit bus. If we just write a word (16-bit) that is 2 bytes, the actual bus op...
I am using St microcontroller( STM32F030C6). In my project I am using ADC to measure voltage and current values. Also we are triggering DMA interrupt once the ADC conversion finish for multiple channels. Once we receive the interrupt we disble DMA an...
I am taking measurements with the ADC1 in an STM32f042C6T6. I poll the temperature channel for examples here, but this problem appears in every channel and regardless of sample time, polling/IT/DMA mode, and clock frequency (AFAICT).Setting up the AD...
I already can update the firmware using uart and usb using the DFUSe Demo and the Usb demonstrator GUI, but i need to make a standalone pendrive updater.
I want to send 16bit spi. 8bit data is not enough because 10 bits are required.I think (uint16_t) data was the data bits which I want to change.I increased it 00 to FF but the result (SDO: Green) is quite different to what I intend. Please review my ...
I have to read out a Mems-Mic (SPH0645LM4H-B).The Data Format is I2S, 24-bit, 2’s compliment, MSB first.One Cannel (L/R) needs 32 clocks -> Framlenght = 64Samplerate 48kHz, real 46,875kHz, Clock 3.072MHZ.Seems OK.BUT: the FS-Signal Duty_Cycle is wron...
