ADC and DMA, again
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Forum Posts
PWM for stepper motor
Posted on April 24, 2013 at 11:05Hi all,plz i need to generate a signal like this one to control a stepper motor: if you have an idea don't hesitate plz. I found an example named ''6 steps'' which contains a signal like this one but it doesn't work
USART Rx problem
Posted on February 13, 2012 at 20:16Hello,I have a little problem with Rx on stm32f417.I designed my own board, byt i am putting this here, becouse i cannot find another approperiate forum.I tried to set up UART2, but i cannot make reciving working....
DWT HSE Period Mesuring
Posted on April 18, 2013 at 12:20Hello!Can i mesure period of High Speed External (HSE) oscillator period with help of DWT?I initialized DWT and can mesure number of cycles of operations.I use stm32f207 microcontroller.Thanks in advice.p.s. Or mayb...
PWM on TIM1
Posted on April 24, 2013 at 13:33Hello everybody, I ever look on webside if previous post treat my problem, but they not resolve my pb. The problem is, I try to pramreter the TIM1 PWM output on STM32, but it do not work. The TIM1 counter register CN...
5V tolerant pin as output with pullup
Posted on April 19, 2013 at 16:09Hi,I need to replace a 5V-uC by a 3.3V type and maybe it will be a STM32F0xxx. Now there is one question concerning 5V tolerance: If the 3.3V-uC drives an output that has a pullup resistor to 5V, is that any problem ...
STM32 F4 rendering performance
Posted on April 19, 2013 at 05:54I'm working on a project use a F4 MCU. Its clock speed is 168MHZ. The resolution of my LCD is 320 * 480. After some testing, I got some figures. Rendering a full screen by direct accessing LCD controller by MCU can r...
I2C CPAL Basic EEPROM Example
Posted on April 23, 2013 at 16:37Hello, I'm using STM32F207 on a Olimex board. I wired a Microchip EEPROM (24LC512) to PF0 and PF1 to use with I2C2. The problem I have is that in sEE_WritePage() I cannot get pass the I2C_Send7bitAddress(sEE_I2C, sEE...
MCU Voltage Level vs USB FS
Posted on April 23, 2013 at 07:36Hi,My F4 MCU is running at 2.8V, but I need to use USB OTG FS peripheral.MCU is device mode (peripheral mode) and not bus powered, I only use vbus, for detect dm-dp signals entity.Data is bidirectionalVBus, DM,DPBut,...
SPI Slave - Data received with errors
Posted on April 17, 2013 at 00:35I'm working with two STM32L151 communicating them via SPI port A-Master and B-Slave. I can only receive data correctly in B-Slave if I switch off transmission but I want full duplex in master and in slave. I can't ei...
