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Resolved! Clock frequency for STM32F303

Hi,I used to run my STM32F303RE at 72Mhz clock from a 8Mhz CMOS oscillator. . Timers8/1 operated at 72Mhz as well. That worked fine. I had to change the CMOS oscillator from 8 to 24Mhz.I tried two modifications, see attachment:a) I changed PLLMul fro...

DetlefS by Associate III
  • 631 Views
  • 5 replies
  • 4 kudos

STM32F411 Documentation-Reference Manual-Error

Hey, I just want to report an error in the Reference Manual for the STM32F411xC/E microcontroller.Reference Manual: https://www.st.com/resource/en/reference_manual/rm0383-stm32f411xce-advanced-armbased-32bit-mcus-stmicroelectronics.pdfPublished on: h...

wolkns by Associate
  • 249 Views
  • 1 replies
  • 1 kudos

Resolved! Why does CORDIC give not accurate results?

Hi all.I have this piece of code: __HAL_RCC_CORDIC_CLK_ENABLE(); CORDIC->CSR |= CORDIC_CSR_NARGS; CORDIC->CSR |= (CORDIC_CSR_PRECISION_3 | CORDIC_CSR_PRECISION_2 | CORDIC_CSR_PRECISION_1 | CORDIC_CSR_PRECISION_0); CORDIC->CSR |= CORDIC_CSR_FUNC_1...

yonatan by Associate III
  • 383 Views
  • 3 replies
  • 0 kudos

Resolved! printf fail to print float type

Software tool: IAR Workbench 9.60#include <stdio.h>#include <math.h>#include <stdlib.h>#include <string.h>#include <intrinsics.h>int putchar( int ch ){    while(!(USART2->ISR&0X0080));   USART2->TDR  = (unsigned char)ch; return ch;} test code:printf(...

STM32L09 by Associate II
  • 387 Views
  • 3 replies
  • 1 kudos

Resolved! FDCAN Not Transmitting or Receiving on STM32G0B1CCT6

I am working on FDCAN communication using an STM32G0B1CCT6 microcontroller. I am trying to perform a simple Tx/Rx loopback test (and later communication with external tools like Vehicle Spy), but I am facing the following problem: FDCAN is not trans...

AKG123 by Associate III
  • 1819 Views
  • 13 replies
  • 3 kudos

Resolved! Different stm32F103 behaving differently

I have purchased STM32F103c8t6 microcontrollers from three different vendors, but they are behaving differently.I am working on CAN, and on the microcontrollers from one vendor, it is working properly. But on the microcontrollers from other two vendo...

Gladson_2-1711604190715.png Gladson_0-1711603786582.png Gladson_1-1711604090049.png
Gladson by Associate III
  • 1350 Views
  • 2 replies
  • 3 kudos

Resolved! PWM jitter

Hello,  I am currently in the midst of developing a super simple system to create a varying load. It's basically to resistors in series with a transistor in parallel of the second resistor. The transistor is driven by a PWM signal to bypass the secon...

EliazLB by Associate III
  • 726 Views
  • 5 replies
  • 2 kudos