Function swmAssignSctInput0

src/platforms/arm/lpc/rx_sct_capture.cpp.hpp:210–215

Assign or unassign the user's GPIO pin to SCT input 0 (SCT0_GPIO_IN_A_I) via SWM PINASSIGN6 byte[31:24]. The byte value is the encoded pin number (PIO0_n -> n; PIO1_n -> 0x20+n).

// via SWM PINASSIGN6 byte[31:24]. The byte value is the encoded pin number
// (PIO0_n -> n; PIO1_n -> 0x20+n).
inline void swmAssignSctInput0(fl::u8 swm_byte) FL_NOEXCEPT {
    volatile fl::u32& r = reg(kSwmBase, kOffPINASSIGN6);
    fl::u32 v = r;
    v = (v & 0x00FFFFFFu) | (static_cast<fl::u32>(swm_byte) << 24);
    r = v;
}

// Convert an unsigned tick delta (free-running 32-bit SCT counter, F_CPU
// ticks) to nanoseconds. F_CPU is the SCT clock when CLKMODE=0; on