I am using 32bit TIM5 in an STM32F469I. I enable the timer and divide the 8M clock by 1000000 to get microseconds. I then use microseconds to time pulses coming into the board from external device. All works well until the timer overloads. I can ...
Hello, I am trying to select a crystal for a design but I am having some difficulty. The data sheet provides little information and AN2867, too much but not very useful IMO. AN2867 depends on taking measurements to determine DL and I do not have the ...
Hi,Code mostly generated by CUbeMx, small config changes. I see spikes comming into ADC value. The termistor is between 10K and 5.6K. I took it an used a voltage generator, same reading with spikes. Same reading on NUCLEO dev board, same on a custom ...
I have a requirement for implementing firmware upgrade feature for one of our products which is based on STM32F412ZG microcontroller. I know that ST provides a system memory bootloader which already supports firmware upgrade using USB DFU class. But ...
I can build and run a program fine through IAR, but this board will not run when powered from a PC without using the IAR debugger. I assume this has something to do with the bootloader.
Hi, thereI am studying the sample codes : STM32F429I_Discovery_FMC_SDRAM and was wondering if the starting address of the SDRAM 0xD0000000 can be changed to something else. I don't see SDRAM memory section in the linker file and don't find any SDRAM ...
I am getting data from a current sensor through the adc of stm32f407. I want to export that data to MATLAB at real time or at least at sampling frequency of 10 kHz. I tried STM Studio but its sampling rate is only 1 kHz. So please let me know what sh...
Dear all,I'm checking if a variable assignement is atomic or not. I know that are many stuff on this subject but I need to approach from a low level perspective to better know what happen under the scene and then have better control of my code.To do ...
I'm in doubt about the transconductance parameter of the HSE oscillator in STM32L443.To select an appropriate cristal I studied AN2867.If the datasheet of STM32L443 which notes "Gm = 1.5mA/V" refers to gm the transconductance of the passive elements ...
Hello,Am using STM32F407IGT6 in my design. I power the VDD, VDDA & VBAT from 3.3V.I use an external voltage reference using LM4121AIM5-ADJ which generates 3V from 3.3V input.When I use this external reference of 3V as VREF+, I would like to understan...
