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STM32 MCUs Embedded software

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USB CDC Class problem

Posted on February 26, 2018 at 10:02Hi,I am working on a nucleo STM32H7 and I am trying to communicate with a Hokuyo through USB. When  I connect the device  the init fails at some point in the usbh_cdc.c (USBH_CDC_InterfaceInit)In this function the...

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Knowing when USB CDC is ready to tx

Posted on May 05, 2018 at 02:46Context.  I using CubeMx on a STM32L462 with FreeRTOS (works fine).  When enabled, MX_USB_DEVICE_Init() is added to the default FreeRTOS task to activate a USB channel which also works fine.. I have my USB channel set ...

STM32F429 Disco1 HOST HID

Posted on December 14, 2017 at 08:16Code Generator using cubeMX for STM32F429 Disco1 HOST HID.Keyboard Behavior:When I connect Keyboard, It Shows that keyboard is connected. But If I press any key on keyboard. Immediately USB disconnected routines s...

STM32F103 ADC + DMA multichannel, from FreeRTOS software timer. Continuous mode works. Manually triggering HAL_ADC_Start_DMA() return HAL_ERROR on ADC_Enable() on second call

Posted on February 21, 2018 at 19:20Hi,I've successfully run a FreeRTOS program that use ADC + DMA in scan, continuous, circular mode and I successfully can average in HAL_ADC_ConvCpltCallback().Now I'd still like to use DMA to fill a buffer of 3 ch...

HAL I2C slave busy

Posted on April 18, 2018 at 11:23I'm trying to use the I2C slave in DMA mode.uint8_t aRxBuffer;HAL_I2C_Slave_Receive_DMA(&hi2c1, (uint8_t*)&aRxBuffer, 1);But HAL_I2C_Slave_Receive_DMA returns HAL_BUSY.At the same time I have no other devices on the ...

STM32F4 HID Host custom device

Posted on November 12, 2014 at 08:42Hello,I am interested to make USB HID HOST which can communicate with custom hid device instead of mice or keyboard.For that I have to send data to that custom hid device.I have used below fuction for dataoutUSBH_...

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