About Dustin Lehmann

Dustin Lehmann · 2022-05-04

Hello,I want to use a STM32G071GBxx in my design of a USB 2.0 Device using a USB-C receptacle. I want to be able to do 2 things:Check what current at 5V the host can provideConfigure the Resistor at the CC lines in a way to draw 3A at 5VCan I do thi...

Dustin Lehmann · 2018-03-14

Posted on March 14, 2018 at 09:24Hello,I am using a STM32F415RGT6 embedded in the 1Bitsy Board. I want to set up the I2C Peripheral in order to read some data from a sensor.My example code: RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);GPIO_I...

Dustin Lehmann · 2018-03-14

Posted on March 14, 2018 at 21:55Well, I found the problem. It just don't work with the F415 with the logic analyzer measuring SCL and SDA. If I remove the analyzer it works. With the F407 it does not matter if it is plugged in or not. Well, that we...

Dustin Lehmann · 2018-03-14

Posted on March 14, 2018 at 13:13Yes I know, but currently I'm on a university internship and my scope is standing at home, if all else fails, I will have to wait until next month until I can debug it electrically. What could be different between th...

Dustin Lehmann · 2018-03-14

Posted on March 14, 2018 at 12:26Yes. Tried the internal ones, and external 1.8kOhm/3.3kOhm/4.7 kOhm Resistors to 3.3V, same behaviour.

Dustin Lehmann · 2018-03-14

Posted on March 14, 2018 at 12:13Hi thanks for the reply. Unfortunately I do not get the BERR to 1, but the AF. And it is 0 if I send the Start Condition and as soon as I send the Adress or any kind of data, it is set to 1

Dustin Lehmann · 2018-03-14

Posted on March 14, 2018 at 12:44I forgot in the above code snippet the following line (which is included in the original one), I don't why it slipped while copying:gpioInit.GPIO_OType = GPIO_OType_OD;

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How can I use the single CC pin of my STM32G071GBxx for USB-C?

STM32F415 weird I2C behaviour

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