What's the difference?

[yuriy23]

What is the difference in terms of speed, occupied RAM, and so on?

SPIClass * hspi = NULL;
void TaskSPI(void *pvParameters)
{
hspi = new SPIClass(HSPI);
hspi->begin(36, 35, 21, 47); //SCLK, MISO, MOSI, SS
}

** **Or so****

#define VSPI 3
SPIClass vspi = SPIClass(VSPI);
void TaskSPI(void *pvParameters)
{
SPIClass vspi = SPIClass(VSPI);
vspi.begin(36, 35, 21, 47); //SCLK, MISO, MOSI, SS
}

[me-no-dev]

None. You are just using another SPI port

[yuriy23]

the question is not about the port number, but about a different entry..
vspi->begin
vspi.begin

[me-no-dev]

. you access the object directly, -> you access it by reference to it's location in memory. No difference in speed or anything else.

[yuriy23]

thanks