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Resolved! STM32L072 USB

Hi all,A USB device should pull up DP when it detects VBUS power only. This is described in the USB standards and ST AN4879 factsheet. Question 1. Is there any other (smarter) way with the STM32L072 than to monitor VBUS power on a GPIO yourself (via ...

JanAtze by Associate II
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  • 7 replies
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Resolved! what does the status codes mean, how do you read them ?

here are the functions:/*** @brief Return the OSPI error code.* @PAram hospi : OSPI handle* @retval OSPI Error Code*/uint32_t HAL_OSPI_GetError(const OSPI_HandleTypeDef *hospi){return hospi->ErrorCode;}/*** @brief Return the OSPI handle state.* @PAra...

MNapi by Senior III
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  • 2 replies
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Resolved! stm32h747 GETCHAR_PROTOTYPE strangeness

Hi Guys,This is driving me mad!So this works perfectly echoing characters via uart8:  int ch = 'A'; while (1) { HAL_UART_Transmit(&huart8, (uint8_t *)&ch, 1, 0xFFFF); HAL_UART_Receive(&huart8, (uint8_t *)&ch, 1, 0xFFFF); }  Now if I have getchar ...

ACapo.1 by Senior
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  • 4 replies
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Resolved! STM32F1 DFP problem

Keil MDK Device DatabaseIf no parameter, it needs to look like thisSo, MDK can not setting "Option for target-debug" correctly 

Shiina_1-1711786767072.png Shiina_3-1711787043912.png Shiina_2-1711786921695.png
Shiina by Associate III
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  • 1 replies
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Resolved! 3.3V power supply for NucleoF103

Hello,I need to power the NucleoF103 development board using an external 3.3V power supply. I have read in the NucleoF103 manual that this is possible by removing SB2 (to disconnect the voltage regulator output) and SB12 (to disconnect NRST). I also ...

Putting STM32L452 Sleep Mode

I'm developing a board with an STM32L452 and would like to find out if I can low the power consumption.The current draining is 35mA, my goal is lower it to 20mA or less to achieve a requirement.I've tried putting the device to sleep putting SLEEP MOD...

jkfc95 by Associate
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  • 1 replies
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