Multiple SPI and I2C and UART ports on the STM32

[Semsem-220109]

Hi there,
I have a project where I need to make a rc remote transmitter using the STM32F103C8T6 and the NRF24L01. At first, I connected the NRF24L01's SPI pins to the pins PA5 PA6 PA7 wich appears to be the STM32's main SPI pins, but then I realized that those pins are also ADC inputs that I need to use, so I thought about switching the NRF module to the SPI2 (PB13 PB14 PB15), but how to do that in my code in the the Arduino IDE since the NRF24L01 library automatically uses the main SPI port and I believe does not have any command to choose the SPI port ?

Also, I need to have an I2C OLED display and a MPU6050 wich also uses an I2C communication, so I wanted to have the display connected to the I2C1 (PB6 PB7) and the IMU to I2C2 (PB10 PB11). How to do that ?

Here is the pinout that I'm using to choose the pins to use :

[fpistm]

Fo SPI, simply change default pins: https://github.com/stm32duino/Arduino_Core_STM32/wiki/API#change-default-spi-instance-pins

For I2C also read the wiki.

[Semsem-220109]

What about the SPI ?

[fpistm]

The same. Instantiate another one as stated before.

[Semsem-220109]

Yes but if I put component.begin(); how do I choose the SPI bus ? I think that by default it will select SPI1 which I assigned to the NRF24L01, so I want to use SPI2

[fpistm]

Well this is linked to the component library which do not allow this. So you have to use the same SPI with different CS or modify the library to simply use the second SPI.

[Semsem-220109]

There's no link

[fpistm]

no link on what? What I said is the third party library you used for your component seems not allowing to change default SPI instance. No link with the core.

[Semsem-220109]

Sorry I read the message above wrong, I thought you said this is the link for the component library... and there was no link