Class to be able to send SPI data with almost no overhead, useful at very high speeds.
I ran into the following error when compiling a library called BurstSPI with VSCode's PlatformIO. This error does not occur with the mbed online compiler. Please tell me why it happens. Please tell me how to use _spi.
Error `BurstSPI/BurstSPI_LPC_X.cpp:6:13: error: '_spi' was not declared in this scope`
Here is my platformio.ini setting
[env:lpc1768] platform = firstname.lastname@example.org board = lpc1768 framework = mbed build_flags = -D PIO_FRAMEWORK_MBED_RTOS_PRESENT