SPIClass error in VL53L8CX_HelloWorld_SPI.ino

[2hgeng]

• Code: VL53L8CX_HelloWorld_SPI.ino
• Compiling the code in Arduino IDE ver 2.3.2
• Using Arduino Portenta H7 lite (https://store-usa.arduino.cc/products/portenta-h7-lite?gad_source=1&gclid=CjwKCAjwuMC2BhA7EiwAmJKRrOc5p091CSuoDOuGgptWaQMRpb22Qh0VMhP6ngdd5oX9LtIufg3TNRoCIecQAvD_BwE)
• Board package: Arduino Mbed OS Portenta Boards ver 4.1.5
• Library STM32duino VL53L8CX ver 2.0.1

Compilation error:
error: no matching function for call to 'arduino::HardwareSPI::HardwareSPI(unsigned int, unsigned int, unsigned int)'
SPIClass DEV_SPI(SPI_MOSI_PIN, SPI_MISO_PIN, SPI_CLK_PIN);

[cparata]

Hi @2hgeng ,
it seems that for Arduino mbedOS derived board there is not the constructor for the SPIClass as you can see here. In your specific case, you can try to use directly the SPI instance and see if it works.
So, try to replace:

SPIClass DEV_SPI(SPI_MOSI_PIN, SPI_MISO_PIN, SPI_CLK_PIN);

with

#define DEV_SPI SPI

Pay attention to connect the VL53L8CX SPI pins to the pins of the SPI instance on the Portenta board.

Best Regards,
Carlo

[2hgeng]

I am connecting to SPI1 of Portenta board, the start ranging function status is 255 (decimal) and no data is received from sensor.

`#define CS_PIN PI_0
#define DEV_SPI SPI

VL53L8CX sensor_vl53l8cx_top(&DEV_SPI, CS_PIN);

void setup()
{
// Initialize SPI bus.
DEV_SPI.begin();

// Set SPI settings
DEV_SPI.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MODE1));

// Configure VL53L8CX component.
sensor_vl53l8cx_top.begin();
status = sensor_vl53l8cx_top.init();

// Start Measurements
status = sensor_vl53l8cx_top.start_ranging();
}`

[cparata]

Hi @2hgeng ,
could you share your hardware setup? Which board with VL53L8CX are you using?
Best Regards,
Carlo

[2hgeng]

The board is Arduino Portenta H7 lite sitting on the breakout board.

https://store-usa.arduino.cc/products/portenta-h7-lite?gad_source=1&gclid=Cj0KCQjw28W2BhC7ARIsAPerrcI-NFLuPr318Kd2GvifCJs0zx6EXtQp5hI4ihMdr3MSMh_EKonwCWkaAovoEALw_wcB

Breakout board:
https://store-usa.arduino.cc/products/arduino-portenta-breakout?gad_source=1&gclid=Cj0KCQjw28W2BhC7ARIsAPerrcJUZICk2R0fy3FeLyzWbwocanHVzHs9hNcBy6Cb8Xfg37AcwincDbAaAn__EALw_wcB

[cparata]

And how the VL53L8CX sensor is connected to the Portenta board?

[2hgeng]

I am using VL53L8CX breakout board
https://www.pololu.com/product/3419

and connecting it to Portenta breakout board SPI1.

[cparata]

Did you connect the SPI_I2C_N pin of the Polulu board at 3.3V?

[2hgeng]

Yes it is at 3.3V, the Polulu board by default pulls it high.

[cparata]

Hi @2hgeng ,
are you sure about it? Giving a look at the schematics of the Pololu VL53L8CX board, it seems that the SPI_I2C_N pin is floating.
Best Regards,
Carlo

[cparata]

Hi @2hgeng ,
any update on this topic? Did you try to connect the SPI_I2C_N pin to Vdd in your hardware setup? It should be one of the 4 floating pins in the picture that you attached above.
Best Regards,
Carlo

[2hgeng]

Yes, it is connected to 3.3V power

[cparata]

Could you share a picture of your hardware setup and the software sketch that you are using?

[2hgeng]

Looks like the Pololu sensor breakout board is using a level shifter which is an issue. I am trying to get new board with new shifter and see if that works. I will keep you posted. Thank you.