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Problem with scanf in STM32F4, it is scanning only the first char even I am requesting to scan an int or float. Details in description

here is the code I am using to scanint ScanConfig(__const char * format, va_list args) { unsigned i=0; char ch = 0; char buffer[256]; int ret = 0; while((i<sizeof(buffer))&&(ch!='\n')&&(ch!='\r')){ HAL_StatusTypeDef status...

stm32f103rb nucleo HSE clock output, no signal

Dear ST folks,I'm trying to configure the HSE clock output over PA8 on stm32F103 from scratch.Here is my code.#include <stdint.h>#include "stm32f10x.h" // Device header  int main (void){  RCC_TypeDef *pRCC; GPIO_TypeDef *pGPIOA; pGP...

MMatv by • Associate II
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The ADC1 & ADC2 is configured in multimode with DMA and trigged by TIM1, but I only get half sample rate 20 kHz. What I have done wrong? Q2 I can only use TIM1 Trigger 2 Out Event to trig the ADCs. Why can I not use any other timers or events?

static void MX_ADC1_Init(void) {   ADC_MultiModeTypeDef multimode; ADC_ChannelConfTypeDef sConfig;   /**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */ hadc1.Instance = ADC1; h...

AJack by • Associate II
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ADC read with STM32L433

would like to read ADC value for vbat consecutively.First read VbatSecond read VREFINT.implementation is like below.​ hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV4; hadc1.Init.Resolution = ADC_RESOLUTION_12B; hadc1.Init.Data...

YChun.15 by • Associate
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STM spi master sending extra clock signals.

I am trying to communicate with an adc chip acting as a spi slave to my stm32f3 spi master. So far I am unable to make it work.After attaching an oscillscope I found out that if i send only 8 bits of data to the slave , I get exactly 16 clock pulses ...

Sdddd by • Associate II
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  • 6 replies
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Incorrect Get Time from RTC (year 2035 for example)

Hello everyone, I have an application that synchronizes the RTC with the current time using a 3G module. Once it is synchronized, the system gets the date and time every 5 minutes in order to store sensor samples with a real timestamp. Everything is ...

Luis Ber by • Associate II
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Why 32kb flash memory instead of 192kb?

I am busy with the muRata module and sixfox on the discovery kit STM32L072. When i want to copy a bin file to the the board as external drive it gives a not enough space error. The total size of the disk is only 32 kb, while the documentation says th...

Meng by • Associate II
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Hello, I am having trouble with the STM32L476 IWDG settings. I want to put the IWDG into FREEZE mode, and I set the bits accordingly, but still get resets generated by the IWDG after putting my application in sleep mode.

I tried two methods - my first code is as follows:FLASH_OBProgramInitTypeDef flashUserConfig = {0};flashUserConfig.OptionType = OPTIONBYTE_USER;flashUserConfig.USERType = OB_USER_IWDG_STOP;flashUserConfig.USERConfig = OB_IWDG_STOP_FREEZE;HAL_FLASHEx_...

JVill.11 by • Associate
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