Posted on September 18, 2013 at 00:22Hi all,I'm working on STM32L-discovery board and currently I'm trying to configure two analog outputs with DAC. I am able to see the result from the output pin but there seems to be some bias from the zero refer...
Posted on April 10, 2013 at 15:44 Hello, I'm using a STM32F4DISCOVERY to program the firmware of my future board. I want to use the integrated 12 bit DAC of the board to generate analog simple signals on the A4 and A5 pins, but I don't wa...
Posted on April 25, 2013 at 20:46Hello, I am a first time poster on this forum so please bear with me. I am using CMSIS to get the DAC peripheral to play a simple tune. I am working off an example I found online which I have simplified to play onl...
Posted on March 28, 2013 at 21:34 hello dear forum, I write 2048 to STM32F4 DAC, it gives 0.83V instead of 1.65V if I write 4095 it gives 1.65 V instead of 3.3V the output of DAC is input to an OPAPM amplifier I mean it i...
Posted on March 07, 2013 at 20:46On the STM32F3-Discovery, PA5 is connected to the L3GD20 gyro chip's SCLK input. In general CMOS devices to not like having input hanging around voltages in between a good Low or High. It causes excessive current co...
Posted on September 05, 2012 at 04:38Hi All, I had the DAC working using DMA to out put a sinewave continuously and it seems to have stopped working when I tried to change which timer I triggered off. After changing the timer configuration back it s...
Posted on December 19, 2012 at 15:08Hi all, In comparator section of reference manual of stm32f30x devices. It is mentioned: ''Cycle-by-cycle current control loop when combined with the DAC and a PWM output from a timer''. What does it mean? Is th...
Posted on November 13, 2012 at 11:33I was planning on using an STM32F103RE in a design where the DACs would be part of a control loop, and will need to be used in 12 bit mode. Unfortunately the DAC specifications in the datasheet show extremely bad...
Posted on December 13, 2011 at 23:24Has anyone been able to use the DAC output (PA4) to generate sound on the headphone port? It seemed like a trivial thing to do, set up the CS43L22 in analog pass-thru mode... but that was 3 days ago. I generate a ...
Posted on December 15, 2011 at 10:31 Hi. I'm trying to get an output from the internal DAC without using DMA, but the examples all use DMA. My code looks like this: RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); GPIO_InitTypeDef...