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Change Polarity of PWM with DMA in circular mode

Hello Experts ,I am generating a two-Channel PWM with complementary channels also   HAL_TIM_PWM_Start_DMA(&htim1, TIM_CHANNEL_1, (uint32_t *)sin_table, 20);//low HAL_TIMEx_PWMN_Start_IT(&htim1, TIM_CHANNEL_1); HAL_TIM_PWM_Start_DMA(&htim1, TIM_CHANNE...

Resolved! STM32C0 with 5V power as in AN392

Hello, I am a little confused here, AN392 claims to run STM32C0 from a 5V power supply, directly from the main fed RCD dropper with a 5.6V Zener. But the datasheet says the maximum voltage is 4V.So does the AN suggest running way over max specs or is...

Miyuki by • Associate II
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  • 4 replies
  • 3 kudos

STM32H735 Erase/Program from external Memory

Good day everyone,I am currently implementing an update process and I am facing some issues if I want to erase the internal flash memory sector if my code is running from an external OSPI-Flash. I am getting the errors:Read Protection ErrorRead Secur...

Resolved! I have a problem with the interrupt callback. The interrupt event is correctly detected but when the code enter into the callback function it excecute just the first line of the code wrot between the curly brackets.

void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin){ if(GPIO_Pin == LVMS_DETECT_Pin) { HAL_GPIO_WritePin(AMS_LED_GPIO_Port, AMS_LED_Pin, GPIO_PIN_SET); HAL_Delay(2000); HAL_GPIO_WritePin(AMS_LED_GPIO_Port, AMS_LED_Pin, GPIO_PIN_RESET); }}When the trigg...

GMart.7 by • Associate II
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  • 10 replies
  • 0 kudos

STM32F103 holding I2C

I am trying to use the F103 as a I2C master but it is holding the I2C pins low, there is nothing else on the bus 5k1 pullups, when I hold the device in reset the lines are 5V. Because the lines are low, SB is never being set, so the first while state...

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