Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on March 09, 2012 at 12:29I have a hid report created using descriptor tool 2.4. The final descriptor size is 289. which appears to be to large (hid not detected). If I cut a few reports out so the size becomes less than 256 it works fine. Is...
Posted on March 09, 2012 at 20:36Hello,I have a question concerning SDIO driver provided by STM for the STM32F407. Do you have to use interrupts or DMA? Can you initialize the a SD Card and write data using:SDIO_SendCommand(&SDIO_CmdInitStructure)...
Posted on March 08, 2012 at 16:35Hi Does ST have a reference design for an USB OTG use case where e.g STM32F4xx based board could be used both as a USB host providing 5V to the USB device and as a USB slave powering the whole board from the USB's 5v...
Posted on February 13, 2012 at 15:48Hello, Je suis un d�butant et j'essaye de commander une LCD (16 * 2) avec un STM32VL : afficher et ajuster une horloge (a l'aide des deux boutons B1 et B2 sur la carte) sur le LCD .et je sais pas par quoi je comme...
Posted on March 02, 2012 at 12:34How to send and receive data using RTOS (RL-ARM) with tasks? (Without generating an interruption?) Using this functions below:TO SEND /*---------------------------------------------------------------------------- W...
Posted on March 08, 2012 at 10:02According to this paper: http://www.arm.com/files/pdf/Low_Pin-Count_Debug_Interfaces_for_Multi-device_Systems.pdf, it is possible to use SWD to debug multiple chips that are all connected to the same debug lines. Acc...
Posted on February 24, 2012 at 04:24Hi, I recently noticed that my STM32VL Discovery board, while powered from the USB port would only output 2.5V on any of the pins. I checked the 5V and 3.3V outputs on the board, which only delivered approx. 4.5V...
Posted on March 07, 2012 at 16:05I encountered a data alignement problem when using the 3 ADCs. ADC_Mode = ADC_TripleMode_RegSimult ADC_DataAlign = ADC_DataAlign_Right had no effect. Data was allways left-aligned. The Problem was that I omitted assi...
Posted on March 07, 2012 at 11:03Hi,I would be grateful if someone could show me how, using C language or by using a line of assembler in a C program, I can force storage of a variable in a register r0 and upwards in an STM32. Even a very basic exam...
Posted on March 07, 2012 at 15:21Hello, we use the STM32F103xx series for a long time now and want to know if it has boundary scan cells. Where can i find more information about the boundary scan possibilites of the microcontroller family of ST ? Fr...
