STM32 MCUs Products

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About the stability of PWM mode

void init_servo_timer() { u16 tmp_period = 0; u16 CCR1_Val = 0;   pulse_num_1ms = 0; pulse_period = (1/((float)pulse_num_1ms)); tmp_period = (u16)(pulse_period * 36000); CCR1_Val = (tmp_period / 2 );   TIM_DeInit(TIM1); ...

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Resolved! uart receive doubt?

i am using stm32f207ve microcontroller ,im receiving continuously data from another controller using 50 buffer using interrupt, after the 50 buffer is filled then again the data not receive in buffer 0 ,what i do now????

LOGU by Associate II
  • 1031 Views
  • 5 replies
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STM32L0 SPI slave transmitting random data

I have setup a STM32L0 as a slave to another micro. The ST must reply to the master with requested data received from a wireless source using SPI. I can get the received data easily. The transmit is sending nonsense to the Master from the ST uC. The ...

PJaco.2 by Associate II
  • 1876 Views
  • 6 replies
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Kindly suggest the Ultra power controller of STM

Hii All,The requirement is,1) 12 Capacitive keys 2) 12 GPIO3) I2C4) Sleep/Deep sleep mode current : less than or equal to 5 micro-ampere.5) Active mode current : - 20 MiliampereKindly Suggest the Ultra Low power controller part number. Regards,STAR...

STAR by Associate II
  • 322 Views
  • 1 replies
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The STM32H725/735 HAL function IS_TIM_MASTER_INSTANCE() is missing a check for TIM12, which is a valid master (has MMS bits in CR2).

For example, here is the function definition for the STM32H725:/****** TIM Instances : master mode available (TIMx_CR2.MMS available )********/#define IS_TIM_MASTER_INSTANCE(INSTANCE) (((INSTANCE) == TIM1) || \                      ((INSTANCE) == TIM...

Getting PEC error from Smbus .

Hi Team,I am using Smart battery in my product. While reading the battery voltage or current I'm getting the PEC error in smbus line, but the received PEC value is correct. In smbus line three devices were connected, Host(mcu (stm32h7)), Master(Batte...

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Vel by Associate III
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  • 0 replies
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Multiple ADC sample with different frequency interference?

Hi,everyone.I'm use NUCLEO-L496ZG platform.ADC1 sample at a frequency of 5M,ADC3 sample at a frequency of 12.8K(PWM trigger).when only run ADC3,ADC3's waveform is normal.when ADC1 and ADC3 run at the same time,ADC3's waveform has a lot of interferenc...

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pxueh.1 by Associate II
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  • 4 replies
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Resolved! How to apply SPI between ESP8266 and STM32f07 with FreeRTOS ?

Recently, I've been worked with the esp8266 and stmf407 discovery board.I used stm32f407 (master), and connect to esp8266 (slave) via SPIHowever, the package I got always missed 1 package. To be more specific, I've tried to send some uint8_t dummy da...

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CLi H.1 by Associate II
  • 1961 Views
  • 2 replies
  • 0 kudos