STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Problem with ADC from STM32F207

Posted on May 25, 2015 at 20:51 Hallo, I try to read the ADC but get allways 0 als result :-( Does anybody have an Idea whats wrong? GPIO_Clk_Enable(@GPIOA_BASE); GPIO_Config(@GPIOA_BASE,_GPIO_PINMASK_All,_GPIO_CFG_MODE_ANALOG or _GPIO_...

sven by Associate II
  • 1911 Views
  • 9 replies
  • 0 kudos

STM32F429 NAND FLASH & SDRAM

Posted on December 16, 2014 at 14:35We constructed a board using STM32F429. We use SDRAM for memory of LCD and NAND flash for program data. SDRAM and NAND flash share FMC bus of MCU. We have 2 problems at present: 1. When we access NAND flash, there...

temp LM75 got strange value

Posted on February 25, 2008 at 05:28temp LM75 got strange value #stm32-lm75-wrong-temp-value #lm75-stm32f103x-temp-register-s

larsahl by Associate II
  • 1166 Views
  • 4 replies
  • 0 kudos

ADC 1 problem with STM8S-Discovery

Posted on May 26, 2015 at 11:57Hi, I have problem with ADC1 conversions on STM8S-Discovery. I have configured the analogic inputs following: PB4 - AN4 PB5 - AN5 PB6 - AN6 unsigned char ADC_Config_INT ( void ) {     GPIO_Init(ADC_PORT,ADC_15V_PIN, GP...

u23 by Senior
  • 721 Views
  • 2 replies
  • 0 kudos

To get data from Invensense MPU9250 with I2C

Posted on May 26, 2015 at 13:25I'm trying to get data from Invensense MPU9250 with I2C on SC1 of stm32w108.These are connected each other with 10k ohm register.But it doesn't get data.I coded as below.Please tell me how to fix.void SCinit(){        ...

kano by Associate
  • 464 Views
  • 0 replies
  • 0 kudos

What is the maximum frequency of STM32F4's PWM?

Posted on May 26, 2015 at 07:11I would like to use the PWM as clock source for other device. so I want to know the maximum frequency of PWM. As faster the frequency of PWM signal increase, the more the shape of PWM signal become to triangle signal. ...

0690X00000605HGQAY.png 0690X00000605HLQAY.png 0690X00000605HMQAY.png 0690X00000605B9QAI.png
just4u78 by Associate II
  • 1171 Views
  • 1 replies
  • 0 kudos

Debug step-by-step with Watchdog enable !

Posted on May 26, 2015 at 09:49Hello,I am debugging step-by-step my project on stm32f103vd, using CooCox CoIDE, and ST-LinkV2.when I enable whatchdog, the system go then to Reset_DefaultHandler(). I think that's normal no ?and how I can debug step-b...

Where is UM1525 gone ?

Posted on April 27, 2015 at 14:42The user manual for the STM32F051 discovery (named UM1525) seems to be gone from the respective http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/LN1848/PF253215. Some kind of meltdown ? #um1525

AvaTar by Lead
  • 708 Views
  • 3 replies
  • 0 kudos

SPI problem reading ADC

Posted on May 18, 2015 at 10:19 I'am using three MAX11210 with a STM32L151VDT6 controller via SPI. I only want to read out the CTRL3 register which is by default 0x1E. If i read out the ADCs behind one another i read 0x1E, 0x1E and 0x1F... but n...