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We have a driver for the RTC which I am trying to enhance with sub-second resolution.I am testing with a tight loop which is repeatedly reading the time. First I am reading the SSR register (which should 'lock' TR and DR?) then the TR, then DR (to 'u...
Hi,In one of my project I am using STM32H750 controller.I want to measure the pulse width which is an input to the controller whose width will be in some nanoseconds so I want to configure the timer in a way that it can support to start the count fro...
HelloI use STM32L100.I try to use the clock output from the MCO as the I2S clock.STM32L100 is an I2S slave and outputs an external clock using MCO(24.5MHz).Can it use without problems？Thank you.
Hello, I'm working with F746ZG Nucleo board with fw package STM32Cube FW_F7 V1.15.0. I seem that the included user manual UM1905 is not updated: C functions related to the CAN described in the document don't correspond to the function interfaces defi...
Dear experts,A customer asks me to copy application from flash to RAM and run in RAM.Not sure if this is justified. If I remember correctly it is not so much on 'F4, but maybe on H7 RAM performs much better? Anyway they pay for this so...I've created...
I try to measure instruction throughput with the following snippet:float bench(int tries, int repeat) { uint32_t t0, t1, d = 0; unsigned A0, A1, A2, A3, A4, A5, A6, A7, B = 1; A0 = A1 = A2 = A3 = A4 = A5 = A6 = A7 = 0; for (int i = 0; i < t...
I'm working with an STM32L031F4 and I'm trying to calibrate the ADC to no avail. I'm wondering what it is that I'm missing here. With the code snippet below, I never get out of the while loop and the CALFACT stays at 0 (if I understand correctly, C...
if someone can tell me how to write a byte to a FMC memory ?Reading a 16bit word looks correct and I can read the status correctlybut using A0 as register select, this is writing one 16bit word, it seems to write 4 times, A0 is jumping up and down, I...
Hi,Someone could help me, please?When I remove battery on my system (NO VDD and NO Vbat on the MCU), and I connect it back, the system do not start!!!!The only way to start the system is a NRST signal.ORSwitch OFF and ON only the VDD power supply (VB...
