Forum Posts
Deadtime about PWM
i config TIM with PWM , and insert deadtime , i found the first deadtime is longer than later , this why behave so ?
STM32L05 + SPI not work after stop mode
Hi,I am trying to use an e-paper and a STM32L053C8 microcontroller.When i use the display in the first cicle, all works fine, but after wake up from stop mode, the display not works. Maybe the SPI interface not start well or i am doing somthing wrong...
OCTOSPI with dma used for external DAC
Hallo.I want to use OSPI to feed an external DAC with data.Data shall be transfered through DMA from memory to OSPI. Eight bits and OSPI-CLK shall be used.In the first place I set up OSP in octo mode, disabled all IRQ etc. and tried to write one byte...
Resolved! Which STM32? - New to ARM chips and looking to change from Atmel XMega to ARM.
Hi,I have an application that has one main controller that will talk to four (4) battery packs via CAN.Ie 5 devices on the CAN network.I would like ALL devices to also have USB connectivity for uploading of firmware and diagnostics.Now for the crunch...
ADC accuracy (offset and gain big errors)
Hi, I'm using the STM32L451VC microcontroller. I'm trying to measure the analog input with an internal ADC (12 bits resolution). The value is compensated with the vrefint (1.21V) of the microcontroller, following the next formula: Vchannel = (3 V · (...
Resolved! Which MCUs actually have 12 bit DACs
I'm after a low power STM32 with DAC outputs.ST Application note AN4566 states in table 1 on the first page that there are processors in all the STM32 ranges that have a 12 bit DAC. The MCU selector also doesn't make the DAC box selectable or desele...
STM32F4 Seamless ADC Channel Configuration Switching
I have two sets (set A, set B) of 3 ADC channels that I'm sampling using continuous multi mode w/ DMA. For latency reasons, I'd prefer to sample set A for a while (let's say 1 msec), followed by sampling set B for a while, followed by sampling set A ...
STM32L496 SMPS usage confusion
It is not very clearly writen how to use external SMPS.Do I need to set any registers or anything like that ?My system will run at 81MHz, and i want to reduce power consumption. I have DCDC and Switch control. IT looks like enabling DC/DC reduces cur...
