C++ (Cpp) SYSCONFIG2_BANDw 예제들

예제 #1

파일: si4700.c 프로젝트: kugel-/rockbox

static void si4700_set_region(int region)
{
    const struct fm_region_data *rd = &fm_region_data[region];

    int band = (rd->freq_min == 76000000) ? 2 : 0;
    int spacing = (100000 / rd->freq_step);
    int deemphasis = (rd->deemphasis == 50) ? SYSCONFIG1_DE : 0;

    uint16_t bandspacing = SYSCONFIG2_BANDw(band) |
                           SYSCONFIG2_SPACEw(spacing);
    si4700_write_masked(SYSCONFIG1, deemphasis, SYSCONFIG1_DE);
    si4700_write_masked(SYSCONFIG2, bandspacing,
                        SYSCONFIG2_BAND | SYSCONFIG2_SPACE);
}

예제 #2

파일: si4700.c 프로젝트: CrashSerious/rockbox_psgroove

static void si4700_set_region(int region)
{
    const struct fm_region_data *rd = &fm_region_data[region];

    int band = (rd->freq_min == 76000000) ? 2 : 0;
    int spacing = (100000 / rd->freq_step);
    int deemphasis = (rd->deemphasis == 50) ? SYSCONFIG1_DE : 0;

    uint16_t bandspacing = SYSCONFIG2_BANDw(band) |
                           SYSCONFIG2_SPACEw(spacing);
    uint16_t oldbs = cache[SYSCONFIG2] & (SYSCONFIG2_BAND | SYSCONFIG2_SPACE);

    si4700_write_masked(SYSCONFIG1, deemphasis, SYSCONFIG1_DE);
    si4700_write_masked(SYSCONFIG2, bandspacing,
                        SYSCONFIG2_BAND | SYSCONFIG2_SPACE);

    /* Retune if this region change would change the channel number. */
    if (oldbs != bandspacing)
        si4700_set_frequency(curr_frequency);
}