About Ole Thomsen

Ole Thomsen · 2020-01-13

Hi,I am using the lsm9ds1 with a selfmade circuit, but I could not get any data from the sensors. The I2C works fine. I can access the registers, read and write to them and get an acknowledge from it, but when I read the data registers, the values do...

Ole Thomsen · 2019-12-20

Hey,I build my own STM32 board with the STM32L011G3 and started testing with a simple blinking program via SWD and ST-Link V2. When I'm debugging it, everything works fine, but when I use the run command in SW4STM32 the LED lights up, but does not t...

Ole Thomsen · 2019-09-25

Hi there,I'm trying to create a Dasi Chain setup with STM32 Nucleo boards using the HAL library.My master should send a command to 10 slaves. It would be best to use DMA for the master to avoid blocking the mpu. HAL_SPI_Transmit_DMA(&hspi1, command_a...

Ole Thomsen · 2019-09-11

Hi there,I'm tring to use the lsm9ds1 with all three sensors. Because polling is too comutational expensive I want to use interrupts. But they only work for me in combination with polling.I have defind the pins PB5-7 for the interrupts on my Nucelo-F...

Ole Thomsen · 2019-12-20

The BOOT(0) is pulled down. In the meantime everything works. I have no clue what the problem was. But plugging off the board and repowering it makes the program work.In the debugging mode there was a blinking light, but after running it, it just lig...

Ole Thomsen · 2019-09-25

I tested it with a slave that should transfer a 5-byte array from the master. The slave sends data that are not shifted by one byte, but wrong values.

Ole Thomsen · 2019-09-25

You are right, the swap is pointless and it is true that there is a delay of one byte, but that is not exactly my problem. The second byte that the slave sends should be the first of the master, but it's different.

Ole Thomsen · 2019-09-12

Nevermind, I found the bug. I have configure my interrups with an falling edge, because https://learn.sparkfun.com/tutorials/lsm9ds1-breakout-hookup-guide/all said, that DRDY would go low for new data, but instead it is active high.

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No data from lsm9ds1

Debugging, but not running.

SPI Dasi Chain: Is it possible to capture a 10-byte DMA array transmission with 10 1-byte transmission?

LSM9DS1: Get no Interrupt without polling

Re: Debugging, but not running.

Re: SPI Dasi Chain: Is it possible to capture a 10-byte DMA array transmission with 10 1-byte transmission?

Re: SPI Dasi Chain: Is it possible to capture a 10-byte DMA array transmission with 10 1-byte transmission?

Re: LSM9DS1: Get no Interrupt without polling