I have successfully connected USBCDC to stdout by redefining __io_putchar and can use printf to talk to a PC thru its virtual serial port but am not having any success with stdin (modifying __io_getchar). Anyone done this and can advise?
I'm implementing, using FreeRTOS, a simple communication protocol based on a 1-wire UART and a request-to-read pin. It has a master and a slave both of them can initiate a read from the other. If both the slave and master want to read at the same tim...
USB HOST library is not thread safe (RTOS mode). Documentation UM1720 does not warn about it. It even gives false belief it is safe.5.3 Using the host library in RTOS mode[...]When the RTOS mode is used the host core background process runs as a sepa...
Hello,I wrote a program that exchanges the existing bootloader with an attached one.While this process works, it can be dangerous during the exchange due to power cut-off.So I would like to implement some safety measures in the code.Before deleting t...
I'm trying to transmit a 4D array of floats from an stm32l552zet6q to a PC using a USB connection. I can collect the array elements and store them, but when I pass the array into the transmission function, I don't see the same elements.This image is ...
Hi,I found that TIMx_RCR functionality reversed w.r.t timer counter started from F103 to L475 as per the article. Here, I just want to know whether this bug is in the manual or is it reversed when comparing F103 to L475.Please find below two screensh...
all in the question
the id report for example : mouse[0] = 0x01; // id 1 mouse[2] = 100; // axe Y USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS, mouse, 4); HAL_Delay(1000); mouse[2] = 0; USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS, mouse, 4);__ALIGN_BEGIN static uint8_...
I made it up with vet6 mcu which have tx rx dma function while struggling with f103rct6 not having those functions ...Would appreciate any help...
I want to programme a USB host CDC. This works as far as it goes. This means I can receive and send data. My problem is that the receive interrupt is called 2 times for data packets with 64 bytes.It is also always called once too often for packets >6...
