Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on July 15, 2013 at 08:39I developed a device based on the STM32F103 MCU that implements an USB MSC + Custom HID composite device based on the ST USB FS library 4.0.0. The Custom HID is used to upload data (following a command/response exchan...
Posted on July 28, 2013 at 22:22I have problem with timer - I want use one as simply counter of external impulses. Now I have (with too many unnecessary settings), but counter not work. I want use eg. TIM1, then I should use GPIO setting as AF for T...
Posted on July 23, 2013 at 16:46Hi , I enable write protection for Sector 8 , which set my option byte to 0x0EFFAAED as i can read from debugger ( IAR ). but as soon as i restart my debugger again i found read protection set to level 1 . i.e value...
Posted on July 25, 2013 at 10:40 Hi ! I'm trying to use PD2 on my STM32F405RG as GPIO output. I think i configured it correctly but it does not switch. Here is my code, it is not that difficult.... GPIO_InitTypeDef GPIO_InitSt...
Posted on July 28, 2013 at 19:03Hallo Guys,I'm working on project which implies analog to digital conversion and at same time transfering the converted data to the PC through the serial port. I've read couple of examples and was led to the following...
Posted on July 29, 2013 at 01:31I'm using UART for comunication with PC and I want to implement some interrupts. It seems to me that USART_IT_TXE and USART_IT_TC are the same. Can someone explane me what is the difference between them? #stm32-...
Posted on September 15, 2012 at 09:58Can anyone please provide me with a link to some basic, low level, 4-bit SDIO interface code compatible with the STM32F4VGT? I'm not looking for it to support a file system(yet), I just want to be able to read by...
Posted on June 21, 2013 at 22:44I'm working on getting quadrature encoding working through either TIM1 or TIM8. I searched the past topics on this forum, but I can't tell how mine is different/ why it isn't working. I'm using USART to debug the co...
Posted on July 27, 2013 at 15:46Hi, I've noticed weird problem when calling few math functions few times in a row or a loop like: c = sin(3.0)+sin(5.0)+sin(5.0)+sin(5.0)+sin(5.0)+sin(5.0)+sin(4.0); Actually I don't know what's going wrong but my app...
Posted on July 27, 2013 at 10:02when i connect 16GB flash disk , stop in USB_Host.EnumState = ENUM_GET_FULL_DEV_DESCUSB_Host.gState=HOST_CTRL_XFERUSB_Host.gStateBkp =HOST_ENUMERATIONUSB_Host,RequestState=CMD_WAITbut when connect 4Gb usb flash d...
