About I2C
Posted on December 06, 2012 at 11:27Hi I use STBee. When I perform I2C in Arduino, I write such a code. void writeDevice(byte address, byte registerAddress, byte data){ Wire.beginTransmission(address); Wire.write(registerAddress); Wire....
Forum Posts
Bootloader and interrupts in user application
Posted on May 03, 2012 at 16:08 Hello everyone! Help me, please, to understand where is the problem. I have my own bootloader, located at 0x08000000. And user application I locate at 0x08019000. The algorithm of my bootloader is:...
STM32 100 Khz Timer
Posted on December 05, 2012 at 17:34Hi guys,I am new to the STM32 Micro and I am dealing with a STM32F0 discovery board. I am messing around with the TIMER peripheral trying to get a 400 Khz, however I have some issues with the TIM3 settings, below ...
libPDMFilter_GCC.a (pdm_filter.o) does not uses VFP
Posted on November 08, 2012 at 03:36 How I can build my application with STM32F4-Discovery_FW_V1.1.0 in VFP notification? arm-none-eabi-ar -r libstm32f4.a misc.o stm32f4xx_dma.o stm32f4xx_rcc.o stm32f4xx_adc.o stm32f4xx_exti.o stm32f4xx_rng.o stm32...
I2C documentation error (Master Read N Bytes)
Posted on December 04, 2012 at 19:14In the STM32F4 ref manual (RM0090, current version Nov. 2012), the read of N (>2) Bytes is described like this (end of 25.3.3): For N >2 -byte reception, from N-2 data reception â—� Wait until BTF = 1 (data N-2 in...
JTAG remap on STM32F103C8T6
Posted on December 04, 2012 at 15:32Hi, I have this issue: PB3 and PB 4 should be a GPIO in push/pull. For PB4 the remap and configuration works fine, but i cant get a high level out of PB3. Here is my code:RCC->APB2ENR |=1; /* Enable A...
SDIO in STM32F217XX
Posted on December 05, 2012 at 14:36When a 4bit microSD card is interfacing to the SDIO in STM32F217XX, is packing (and unpacking) Data done in FIFOs inside the SDIO? How does it work? #sdio-4bit-bus
USB HID Linux
Posted on December 05, 2012 at 10:43 Hi, I do use the ST Evalboard STM3220G-Eval and started with ST example project USB HID Device Mouse/Joystick. It does work on Windows and Linux - no problems. Now I started to modify the example ...
Question about GPIO port defined as AF
Posted on December 04, 2012 at 19:17I noticed on the STM3210E-EVAL board design and in the demo code GPIO port A was defined as AF for SPI1 and for USART. The chip select pin for the SPI flash memory was defined as pin 2 in GPIO port B. Does it mean...
USB lib: device notification
Posted on December 04, 2012 at 20:50Hi all I've a question: Is there any possibility to check the connection state? to enable the usb communication or to reset all (deinit, reset variables, clear buffers...)? Best regards Patrick
