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Posted on November 30, 2012 at 05:26hi: I want 24 Mhz clock generation for my sensor, how can i do that without MCO1? MCO2 can be option. but by MCO2 i get clock as 21.4Mhz etc but not exactly 24MHz, the sources and dividers didn't make right...
Posted on September 13, 2012 at 11:00Hi All, I have a fully functioning RTC on the STM32103. however it is fast by about 30 seconds over a 24hr period. The RTC is running from external 32768Hz crystal. Anyway for now i want to output RTC seconds sig...
Posted on December 02, 2012 at 19:52I used example code in here to send and echo char through UART. I connected PB10, PB11 right to RX and TX pin to FT232RL and connect it to USB's PC. On PC I'm using Hyperterminal with the correct baudrate, parity,...
Posted on November 01, 2012 at 17:32 Hi all, I have a problem on my I2C2 configuration on STM32F4. I try in poll mode first, and I have strange result : write() seems to be ok, but not read() (see comments in code below) : uint8_t data...
Posted on December 02, 2012 at 09:44 I am writing some code to enable SPI to use the accelerometer. But when I enable the GPIOA clock in RCC_AHB1ENR it bricks the board and I have to use the BOOT pin to reset it. Here is the piece of code that m...
Posted on December 02, 2012 at 16:04i have made a custom pcb for the stm32f407, all works great :)but i can only use STDFUTester.exe to download the firmware in dfu mode. DfuSeDemo.exe says success but transferred bytes is 0 and it does not download...
Posted on November 29, 2012 at 11:54Hi All , I am working with STM3221G-EVAL board, i loaded the STM32F2-F4_Demonstration fw ,that came with the board ,i am trying to work with RS-232 , for now using this fw. when i am trying to type on the LCD and ...
Posted on December 02, 2012 at 01:01I have made a custom pcb using the stm32f407. the pcb is very small 50mm x 28mm. I have noticed the stm32 runs quite warm though.Its cooler when in dfu mode. but when running my program its quite warm not hot like...
Posted on November 30, 2012 at 16:02Dear STM324 Developers, I'm working on a custom board based on the STM32F417 mcu. I want to connect my board to an other system via SPI2. This other system will act as SPI master (slave mode is not supported on t...
Posted on November 30, 2012 at 10:07AN2586 says: Battery backup To retain the content of the Backup registers when VDD is turned off, the VBAT pin can be connected to an optional standby voltage supplied by a battery or another source. The VBAT pin ...
