STM32 MCUs Products

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How to find reason for hard fault , very rarely occurring ?

the "system" is a audio player, decoding (in float) MP3 stream, output on I2S to a DAC;cpu H743 , at 200MHz, i/o by DMA1 , stream coming from ESP8266 wlan radio.system ok, running ...maybe 1..3 hours, then hang up:just now got it first time, still in...

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AScha.3 by Super User
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  • 5 replies
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Stop mode in stm32L552

Hi all,I am using stm32L552CE. When I enter stop mode or sleep mode, the current is too high (5mA for stop mode, 18mA for sleep mode). /* Enable PWR clock */  __HAL_RCC_PWR_CLK_ENABLE(); HAL_Delay(5000); printf("Go into stop mode\r\n"); /****** Suspe...

kkid.1 by Associate
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  • 3 replies
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STM32G071 Push Pull PWM and Fault Pin

Hi,I​ have control H-bridge with 4 IGBTs . PWM Topology : Push Pull Mode PWM Frequency : 10KHz to 100KHzDead Time : 2.5usDuty Cycle : 0% to 50%Emergency Stop : 2 Fault Pins for Individual ChannelsHow to achieve below wave with STM32G071 MCU and STM32...

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STMP32H7 UART1 RS422 DMA Rx not functioning but Tx works.

Have STPM32H7 CPU running in 108 Mhz, and UART1 pull off PLL3 @50 Mhz, set baud rate at 3375000 with 8x oversampling rate.Do see the Tx signal by DMA (303 ns each baud ) out to device and replied with about 302 ns baud, signal is clean on the scope, ...

CWang.16 by Associate
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  • 0 replies
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How does the STM32 Boot pin works?

I have a question about the BOOT pin performance of the STM32G031.In the datasheet says that upon reset, the boot pin (PA13) is established at the beginning as the picture shows. But I wanna know if it is only at the beginning of the reset and then I...

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ECruz.2 by Associate
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  • 6 replies
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STM32F103 occasionally doubles counting speed in encoder mode

Hello!I use STM32F103 MCU Timer 2 in ecnoder mode. Ticks from an encoder go at approximately 1 MHz, so I use prescaler value 25 to decrease the frequency.Sometimes it works fine, but sometimes timer begins to count encoder ticks at double speed - it ...

MPopo.1 by Associate II
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  • 6 replies
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