Posted on January 11, 2017 at 18:22I have tried to reflash St-Link by J-Link. But has got an error: Timeout: ST-LINK/V2-1 did not enter DFU modeNow ST-Link is not detected.Is there any way to reflash st-link on the board by other board or so?
Posted on December 22, 2016 at 10:14
I work with STM32F4Discovery board, generate code from Cube, SYSCLK is 168MHz, APB1 Timer Clock 42 MHz, TIM6 has prescaler 1000, and counts till I make the following experiment.
Enable TIM6 interruption by...
Posted on December 19, 2016 at 12:03
I use STM32F407G-DISC1 board. I have run some examples with VCP based on STD library. Everything is OK. Then I have tried to generate code by CubeMX. And something interesting happens.
If not to add any cod...
Posted on December 09, 2015 at 16:22I've started to look for the answer for the following question after finding out the problem with UART. It did not work correctly, and I tried to change baud rate from 115200 to 57600. After that UART worked.I use...
Posted on November 17, 2015 at 15:31I have this board a couple of days. I am trying to blink LEDs. With green one it works fine, but with blue one it doesn't work.I think the problem lies in the 2V VDD. LED works if it is supplied by external source...
Posted on January 10, 2017 at 18:12Somethere in configuration there is an error. I have made the following thing.1. Create project as described here http://visualgdb.com/tutorials/arm/stm32/usb/ 2. Copy all files relating to usb (drivers, config...)...
Posted on January 10, 2017 at 18:06Actually the problem is not in using delay function. If I add some other code, then the problem is the same 'open error port'.
Posted on December 22, 2016 at 14:25You are completely right. I hasn't known, that timer counts during breakpoint pause (I have missed 'Debug mode' Timer section in reference manual). After freezing everything is correct. Thanks a lot.
Posted on December 22, 2016 at 12:26You are right, TIM6 is a trigger source for DAC. Every upload event new DAC value is generated. (I've checked the period, it is 1.5 ms, as it has to be.)I expect, that number of update events and number of interru...
Posted on December 09, 2015 at 17:35I thought ST-LINK resonator was disconnected. There is a mistake in text in manual. But schematic is correct. Thank you clivel .The problem is, that startup library suppose external resonator to be used. But actua...
