About Valkan Pavlov

Valkan Pavlov · 2025-01-16

Hey folks,I need assistance with resetting an Analog Devices ADC. I need to generate high output for 1000 or 4000 ns from my Nucleo F401RE board.As shown in the attached image, I need to set the pin low, then high for a specific duration, and then lo...

Valkan Pavlov · 2024-10-31

Hey folks.What I do is this: I get 14 ADC measurements on different channels, than use DMA to store them into an array. When this is ready an interrupt flag is raised, I make a copy of that array and send it via UART. There is a timer to control the ...

Valkan Pavlov · 2023-08-08

Hi,I am on a steep learning curve here. There are huge gaps in my understanding of the field, so any help will be most appreciated. Basically I am trying to connect to AIS2ih accelerometer (on Steval-mki218v1) with my Nucleo board, and try to communi...

Valkan Pavlov · 2023-07-17

Hey there. I just got this 3-axis accelerometer. Can I use it with Nucleo board?Thanks!

Valkan Pavlov · 2023-05-08

Hey folks, I did try the bare metal programming videos on Udemy, and got so facinated, that decided to try on other board. As expected the code from the tutorial is not working on the other board. However I have checked, and re cheked the registry va...

Valkan Pavlov · 2024-10-31

Thank you Sarra!

Valkan Pavlov · 2023-08-11

It was an address issue after all, the addresses were: 0b00110010 for write, and 0b00110011 for read. I had also an issue with no or bad contact with jumper wires, when adjusted them a bit the reading values started to emerge.

Valkan Pavlov · 2023-08-08

Thank you again TDK,I did try with 0b110000 as an address but still could not read the Who_am_I register.

Valkan Pavlov · 2023-08-08

Hey TDK,Tthank you for your advice! I am just not sure. I took this address from the datasheet of AIS2IH, there was this: " If the SA0/SDO pin is connected to the supply voltage, the address is0011001b, otherwise if the SA0/SDO pin is connected to gr...

Valkan Pavlov · 2023-05-11

Hi, I was able to validate the default system clock speed of 4 MHz, and maybe fix the errors. But still miss something. Maybe the LPUART require more things to work.... back to tutorials, maid be early to start projects on my own. Thank you for the a...

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Re: STEVAL-MKI218V1 + Nucleo F401RE I2C communication

Re: USART with Nucleo L4R5ZI - bare metal/registry programming