STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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Cannot get USB VPC to work, bootloader / DFU mode works

Hi All,I have a strange problem. I made a custom board with a stm32l151VETx and i cannot get the VPC to work. No device shows up in the device manager nor on linux under dmesg. However if I change the boot pins so that the internal bootloader starts ...

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mmj by Associate
  • 537 Views
  • 1 replies
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STM32F107 FreeRTOS+NetConn won't work

Hello.I'm trying to stitch-up the STM3210C LwIP TCP/IP Echo client example (my board) and STM324xG LwIP+FreeRTOS+NetConn example.LwIP, and netif config are the same as for Echo example (and previously I ran httpd-raw server with it).I was able to set...

zedeg by Associate III
  • 439 Views
  • 0 replies
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Inaccurate us delay function

Hi,I'm trying to implement a `delay(microseconds)` function on an STM32 F745 running at 216 MHz. I want to keep it dummy and simple without involving interrupts. My strategy is as follows:-Setup TIM2 to run at 1 MHz. Since it has a 32-bit counter it ...

CGalv by Associate III
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  • 9 replies
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X-CUBE-Azure x509, are certificates supported?

I am running STM32CubeExpansion_Cloud_AZURE_V1.1.0With IoTHub SDK 1.2.12 and provisioning client 1.2.12The provisioning client resolves server name as expected, then the iothub client handshakes with the IotHub using MQTT, but the server rejects it.I...

UKluk by Associate
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  • 2 replies
  • 0 kudos

Help getting STM32L496G-DISCO SD card DMA writing

I am currently trying to get the SD DMA + FreeRTOS on board the STM32L496G-DISCO working. Currently, I can get just the regular SD card working but once I try the DMA + FreeRTOS, the whole project seizes. The example code included with the cube insta...

lgelfius by Associate
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  • 0 replies
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arm_fir_q15() Hard Fault

Hi,I've a NUCLEO-F767ZI. I'm having problem getting the arm_fir_q15() to work, it gives me a hard fault. I'm defining the variables like this:#define BLOCK_SIZE 1 #define NUM_TAPS 51 /* USER CODE END PD */   /* Private macro -----------------------...

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