STM32F4 SPI-DMA data is shifted
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Forum Posts
A question about DAC output voltage on STM32F429 Discovery board
Posted on May 04, 2014 at 08:55 Hi everyone, I am using stm32F429 discovery boad to learn STM32 MCU. I tried to ask MCU read a voltage from ADC port(with DMA) and transfer that value to a DAC output(without DMA), just for me to familiar with...
stm32f030 jtag connection
Posted on May 02, 2014 at 06:51 hi, i am very new to stm32,i have to make jtag connection also for debugging and programming. i have concerned with stm32f030R8t6 disco schematic but i was unable to find more detail about 20pin jtag as its using st_l...
Who's got success with DCMI ?
Posted on April 28, 2014 at 15:36 Hi there, I am struggling capturing WXGA(1280x1024) images with STMF429 and ov2640 (from STM324x9I-EVAL1 board). SDRAM bandwidth looks just enough to cope with DCMI data and I often catch DMA FIFO errors (sh...
interrupt handling
Posted on March 16, 2012 at 13:33 i am using eCos for my app. i have STM3210E-EVAL board. in my app there is one thread(toggle LED) and external interrupt on PG8. when button is pressed(PG8) another LED should blink once.but nothing... ...
How to program user button interrupt with ecos
Posted on May 03, 2014 at 07:35hi, i'm using a stm32f4 board. and i want to write a program with ecos embeded system that when i push user button, an interrupt will trigerd and do something. i find the function cyg_interrupt_create(), but i need a ...
DAC Software trigger
Posted on May 03, 2014 at 18:56 Hello, somehow i can't find way to do software trigger to start DMA transfer of memory array to dac. Original idea is to fill data array with my wavefrom, and use software trigger to start DMA transfer. Origin...
Temperature sensor in stm32f4-discovery problems
Posted on May 04, 2014 at 09:41Hi everyone, I'm trying to read temperature from temperature sensor in stm32f4-discovery kit I've configured ADC1 and then read converted value and do some math on it now when debugging it goes to hard fault why ?? I ...
F103 USB BULK OUT Problem
Posted on May 04, 2014 at 16:04Hello, I am trying to get double buffered USB bulk-out transfers working.The device does enumerate correctly but bulk transfers do not even raise interrupts. This is my EP initialization (usb_prop.c : reset handler: [c...
question about DMA
Posted on May 04, 2014 at 16:44I have an ISR, in which a DMA transfer will take place when the ISR is running. Although DMA transfer does not occupy CPU's running time, but occupies the Data bus. So will the DMA's existence lengthen the ISR's execut...
