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h1r9: adjust PLLA according to source frequency

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This commit is contained in:
Michael Ossmann
2022-09-28 04:43:39 -04:00
committed by Mike Walters
parent 7a0aec00ef
commit eb8ed45f9a
1 changed files with 14 additions and 3 deletions
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17
firmware/common/si5351c.c
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@ -324,9 +324,20 @@ void si5351c_set_int_mode(
void si5351c_set_clock_source(si5351c_driver_t* const drv, const enum pll_sources source)
{
if (source != active_clock_source) {
si5351c_configure_clock_control(drv, source);
active_clock_source = source;
if (source == active_clock_source) {
return;
}
si5351c_configure_clock_control(drv, source);
active_clock_source = source;
if (detected_platform() == BOARD_ID_HACKRF1_R9) {
/* 25MHz XTAL * (0x0e00+512)/128 = 800mhz -> int mode */
uint8_t pll_data[] = {26, 0x00, 0x01, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x00};
if (source == PLL_SOURCE_CLKIN) {
/* 10MHz CLKIN * (0x2600+512)/128 = 800mhz */
pll_data[4] = 0x26;
}
si5351c_write(drv, pll_data, sizeof(pll_data));
si5351c_reset_pll(drv);
}
}