About lauris

lauris · 2015-05-22

Posted on May 22, 2015 at 15:33 Hello, Can anyone help in pinpointing where and what I'm doing wrong when seting up USART DMA TX transmission. Working with STM32L152RB (STM32L discovery) and trying to setup USART1_TX overDMA1_Channel4,USA...

lauris · 2014-01-25

Posted on January 25, 2014 at 14:06Hello,I most likely miss something, maybe anyone can get me on the right way. I'm using http://www.mikrocontroller.net/articles/STM32_BLDC_Control_with_HALL_Sensor as reference, in function BLDCMotorPrepareCommutat...

lauris · 2014-01-17

Posted on January 17, 2014 at 13:08Hello, Maybe anyone have met with situation or have any hints where to look for problem if I receive data in ''EPx_OUT_Callback()'' function only by one byte, even if it was sent significantly larger amount of it. ...

lauris · 2013-12-05

Posted on December 06, 2013 at 08:59Hello, I would like to inquire about STM PMSM FOC library use in case of application where controlled motor is in stand still in most cases and from that point it have to be able to spin at variable torque (in ter...

lauris · 2013-12-05

Posted on December 06, 2013 at 08:40Hello, Maybe someone could share 'Current sensing amplification stage design tool.xlsx' mentioned in AN4076 guide or explain how to calculate initial values of current sensing amplification filter? Or maybe there ...

lauris · 2015-05-25

Posted on May 25, 2015 at 21:22Hello,well it worked on STM32L152VC, but not on STM32L152R8, will need to check if I can make it working on R8 too, in some way.

lauris · 2014-02-05

Posted on February 05, 2014 at 10:43Hello, I think for such case you would be able to get more info in motor control section: https://my.st.com/public/STe2ecommunities/motordriver_ics/Lists/Motor%20Control%20Firmware%20and%20Software/AllItems.aspx a...

lauris · 2014-01-27

Posted on January 27, 2014 at 22:13Hello,Well looks like I found my problem, was trying to select wrong timer output(TIM4 instead TIM3) to control 1st timer. now need some picking up dead times, delays and ect. since motor is running, but it seems i...

lauris · 2014-01-23

Posted on January 23, 2014 at 09:58Custom PID is needed only if you are planning to use custom drivers, but is you would use common ones like VCP drivers and etc. you should leave PID as it is from ST in order for ST drivers to work with it. And in ...

lauris · 2014-01-22

Posted on January 23, 2014 at 07:44Hello, Not sure there is other way, either buy VID from usb.org (if not mistaken there is option of 3.5K$ for 2y) or use one provided by ST. well one thing is that I don't see problem in using ST VID even on your c...

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Failing to set up USART DMA TX

Hall sensor(TIM3) fails to control TIM1 for motor controll

STM32F103 USB VCP receives only byte by byte

PMSM FOC lib for torque controlled system from 0rpm

Shunt current filter calculation (AN4076)

Re: Failing to set up USART DMA TX

Re: STM32F1 Space vector PWM algorithm

Re: Hall sensor(TIM3) fails to control TIM1 for motor controll

Re: USB vendor/product ID

Re: USB vendor/product ID