Method write

FluidNC/esp32/tmc_spi.cpp:45–52

Replace the library's weak definition of TMC2130Stepper::write() This is executed in the object context so it has access to class data such as the CS pin that switchCSpin() uses

// This is executed in the object context so it has access to class
// data such as the CS pin that switchCSpin() uses
void TMC2130Stepper::write(uint8_t reg, uint32_t data) {
    log_verbose("TMC reg " << to_hex(reg) << " write " << to_hex(data));
    tmc_spi_bus_setup();

    switchCSpin(0);
    tmc_spi_rw_reg(reg | 0x80, data, link_index);
    switchCSpin(1);
}

// Replace the library's weak definition of TMC2130Stepper::read()
uint32_t TMC2130Stepper::read(uint8_t reg) {