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Difficulty with speed of updating PWM duty cycle

Hi, I'm a relatively new programmer, attempting to program a "Bluepill" module, which has the STM32F103C8T6 microcontroller. I'd like to be able to quickly change the duty cycle on a PWM output, so that I can adjust the position of a servo motor as I...

How the stack work?

Hi there,I remember the stack starts from the top, which means the earlier local variable will be located at a higher address space. I have the following code in the main() function in ARM-MDK IDE:  uint8_t v1; uint8_t v2; uint8_t v3; LOG_DBG("&v1[%p...

Junde by Associate III
  • 118 Views
  • 6 replies
  • 2 kudos

stm32f103 startup io initialization problem

hello.this is the first time I've had this problem , I describe this problem next:1 the io initialization input is normal (this is the feature I want)2 when I power off and restart, I find that the same pin initialization input is not responding3 rep...

STM32F105 64 pin bootloader

Hello I have been asked how difficult it will be to create a custom bootloader for the STM32F105.We are for some reason using the 64 pin version of the chip and from the AN2606 i can see """""Workaround• For 64-pin packagesNone. The bootloader cannot...

sklindt by Associate II
  • 257 Views
  • 11 replies
  • 3 kudos

STM32F103CBT6 Erase Chip using ST-Link Utility

Hi, I designed PCB including STM32F103CBT6 and I have attached schematic here as a reference. I am using SWD with an adapter from (Olimex LTD / ARM-JTAG-20-10) then connect through ST-LINK/VE debugger. After checking all voltage rails on the board, I...

shin212 by Associate II
  • 124 Views
  • 2 replies
  • 0 kudos

for an inverter PWM -ADC -feedback -synching

What is the best meathd to of feedback method In sineinverter (like commercial) ?is it good by a forumal appling instead using look up rable .It saves the memoryIf i use look up tableconst unsigned char sin_table[416]={0, 16, 32, 47, 62, 77, 91, 103,...

W5500 library for a STM32F103C8

Hello.I am working on a project where I nees to communicate 2 STM32F103C8 that are on the same LAN using a W5500 module. Has anybody done something similar? What is the best way to do it? Although, there is a library for this porpuse? I am trying to...

SGatt.1 by Associate II
  • 1192 Views
  • 8 replies
  • 1 kudos

STM32F103 VS MKI194V1(LSM6DSR)

Hi,I'm currently using the STM32F103 SPI to read the MKI194V1, but I've noticed that the ID I'm reading is always 0x4A. Could you please help me check if there's an issue, or provide any sample code?I also take a photo of the MKI194V1. The marking on...

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