About Kannan1

Kannan1 · 2024-03-12

Hi,I need to create a USB composite device class interface with STM32U5A5 controller. I have been using the USB_CDC_ACM example project so far for my development. In this example the USB CDC ACM class is configured and I need to change/add this to a ...

Kannan1 · 2024-01-30

Hi,I am using NUCLEO-U5A5ZJ-Q board to setup a USB VCP connection with PC. I am currently using the example project CDC-ACM, and getting a maximum speed of up to 4.4MBPS via the connection by increasing the Tx FIFO size and Max Packet size in devic...

Kannan1 · 2024-01-25

Hi,I have been working on NUCLEO-U5A5ZJ-Q EVK to setup as a USB VCP device with the support of STM32CubeIDE. I got an example from the ST repository. Its using the Azure RTOS USBX stack instead of STM32 USB Device stack. I am not very much familiar w...

Kannan1 · 2018-11-13

Is there any tool for communicating with STM32F723ZE MCU bootloader from ST?I have tried with cube programmer and flash loader demonstrator.These tools doesn't support this MCU.

Kannan1 · 2018-11-08

Kannan1 · 2024-02-07

@FBL Thanks for the reply. I have managed the hard fault handler issue in my code and now the ux_device_class_cdc_acm_write_with_callback API in non-blocking mode works successfully. But the speed is now reduced to 3 MBPS from 5 MBPS of the blocking...

Kannan1 · 2024-01-30

Update:Here is the OTG_HS_PCD_Init function, and dma is disabled, do I need to enable DMA for better speed?void MX_USB_OTG_HS_PCD_Init(void) { /* USER CODE BEGIN USB_OTG_HS_Init 0 */ /* USER CODE END USB_OTG_HS_Init 0 */ /* USER CODE BEGIN U...

Kannan1 · 2024-01-30

@Imen.D Hi, Do I get better throughput with ux_device_class_cdc_acm_write_with_callback. Is there any example project available?

Kannan1 · 2024-01-28

Thanks.As @Imen.D suggested, I have kept the total Tx fifo size to 2048 bytes. HAL_PCDEx_SetRxFiFo(&hpcd_USB_OTG_HS, 0x200); HAL_PCDEx_SetTxFiFo(&hpcd_USB_OTG_HS, 0, USBD_MAX_EP0_SIZE/4); HAL_PCDEx_SetTxFiFo(&hpcd_USB_OTG_HS, 1, /*USBD_CDCACM_...

Kannan1 · 2024-01-25

@Imen.D Thank you very much for the quick reply. Everything works fine by increasing the size of tx fifo 1, which is the BULK Endpoint IN for CDC-ACM. Now I can work with a larger Pkt size of 2048 in my code.#define MAX_PKT_SIZE 2048Between, Why you...

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STM32U5A5 USB device vendor specific class implementation

NUCLEO-U5A5ZJ-Q USB CDC ACM maximum speed using USBx

NUCLEO-U5A5ZJ-Q USB CDC ACM issue with ux_device_class_cdc_acm_write() function

Is there any tool for communicating with STM32F723ZE MCU bootloader from ST?

Is it necessary to erase startup code(in my case sector 0) before flashing new code into the STM32F723ZE controller.My code failed to run after flashing without erasing startup code.Please help me.

Re: NUCLEO-U5A5ZJ-Q USB CDC ACM maximum speed using USBx

Re: NUCLEO-U5A5ZJ-Q USB CDC ACM maximum speed using USBx

Re: NUCLEO-U5A5ZJ-Q USB CDC ACM issue with ux_device_class_cdc_acm_write() function

Re: NUCLEO-U5A5ZJ-Q USB CDC ACM issue with ux_device_class_cdc_acm_write() function

Re: NUCLEO-U5A5ZJ-Q USB CDC ACM issue with ux_device_class_cdc_acm_write() function