Posted on July 22, 2012 at 12:21I have been building my own Boards. And have experience with an assortment of Micros. WARNING #1 : I have found that these STM Chips are Very SENSITIVE to Voltages. I accidentally tied the USB 5V source to the VDD Bus...
Posted on July 24, 2012 at 19:04General Purpose Timer 4 counts the position from incremental encoder in quadratur mode. The Encoder has 200 slots and for low speeds, the frequency is rather low. To derive the rotation speed, I subtract 2 positions i...
Posted on July 24, 2012 at 18:13Hello! I need some help with CAN message filtering on STM32F4Discovery board. 1) Can someone explain the difference between Filter_IdList and Filter_IdMask mode? I've read the reference manual, but I don't get it. 2) ...
Posted on March 07, 2012 at 15:22I configure SPI2 and I2S2_ext for running I2S in fullduplex mode using DMA1_Stream4 and DMA1_Stream2. DMA1_Stream4_IRQHandler called and i2s tx is working fine, but DMA1_Stream2_IRQHandler not called at all. Please ...
Posted on July 16, 2012 at 18:06Hi all!!!Please help me. A have problem with I2S interface in this MC. I need to work with audio codec cs4221 by means of I2S. I setup I2S2 interface in full-duplex mode (I2S2- Master reciev, I2S2ext - Slave TX). Data...
Posted on July 16, 2012 at 11:22Hi, I am new to LCD display controller. I am using Olimex STM32F207 board with onboard 6610 LCD color 128x128 TFT display. I have initialized the LCD according to Example code. I my case I could see LCD backlight is ...
Posted on July 22, 2012 at 03:26Greetings, I have a small number of bytes (less than 80 bytes) that I need to store in persistent storage, but the values may change in excess of 10,000 times. I believe the SRAM would work fine for this, but I would...
Posted on July 24, 2012 at 00:31I am using a STM32F103 that has implemented a USB device stack based on the Joystick Mouse HID demo code from STM. My app is able to go into USB selective suspend and to resume successfully, both from host-initiated ...
Posted on July 02, 2012 at 15:01Hi, I am using IWDG and it works good. I would like to stop it when core halts (in breakpoints), therefore i did: DBGMCU->CR |= DBGMCU_CR_DBG_IWDG_STOP; But it does not stop the IWDG. Do i miss something? Thanks.
Posted on July 22, 2012 at 09:07Does someone now a tutorial where is explained from a to z how to setup a development enviroment for a stm32f4discovery.i'm constantly running against problems, of not compilling my projects good. i realy wan't to use...
