About BRowl

BRowl · 2021-05-26

I am testing the VL53L0X ability to accurately measuring the distance to objects of different materials and different sizes. The sensor is in continuous mode and I am using VL53L)X_GetRangingMeasurmentData to read the distance and reflectivity value....

BRowl · 2021-05-21

BRowl · 2020-04-11

I am using SPI1 to communicate with an IMU, which work perfectly. I used the same initialization code for SPI2 making changes for SPI2 and initialize PB13, PB14 and PB15 as SCLK, MISO and MOSI. It doesn’t work and I have run out of ideas. When SPI1 ...

BRowl · 2019-02-09

I am interfacing to an LSM6DS33 with an ST32F407using the SPI bus. The SPI is set up as follows: Fully Duplex Master Eight Bit Clock is high when Idle Data sampled on second edge Baud Rate P...

BRowl · 2021-05-27

Thanks John,Initially I was using SPAD, but I found it was always 45572, so it didn’t make a difference. The parameter I was reading for SPAD was EffectiveSpadRtnCount. I have no covering over the VL53L0X.

BRowl · 2020-04-13

Thanks so much Chris, that solved it. I was sure it must be something simple, but just couldn’t see what.

BRowl · 2020-04-13

Good suggestion, thanks.I read the four GPIOB registers being loaded by GPIO_Init and this is what I found. When PB13 is initialized as an output port and it works as an output port and the four registers are:Mode_AF = 0x4000280OType_PP =...

BRowl · 2020-04-12

I did try sending data and there was still no clock on PB13, it was always low. I compared the SPI1 status register to the SPI2 status register immediately after a data send. Both status registers were exactly the same, all flags were low except the ...

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VL53L0X distance reading varies with reflectivity

Is there any way to read the reflectivity value from the VL53L0x? I found an API function for setting the limit on the reflectivity, but I haven’t found any way to read the actual reflectivity value.

I am trying to use SPI2 on an STM32F407 processor and can’t get it to work.

LSM6DS33 SDO always low

Re: VL53L0X distance reading varies with reflectivity

Re: I am trying to use SPI2 on an STM32F407 processor and can’t get it to work.

Re: I am trying to use SPI2 on an STM32F407 processor and can’t get it to work.

Re: I am trying to use SPI2 on an STM32F407 processor and can’t get it to work.