si5351-stm32

Port of Adafruit's si5351 driver to STM32 HAL
Change the #include on line 49 of si5351.c as needed.
Change that to your board f1, f3, f7 what have you.

Usage:
si5351_Init();
// Set clock 0 to 16MHz
// 25mhz crystal osc * 32 == 800MHz
// 800MHz / 50 = 16Mhz
//
si5351_setupPLLInt(SI5351_PLL_A, 32);
si5351_setupMultisynthInt(0, SI5351_PLL_A, 50);
si5351_setupRdiv(0, SI5351_R_DIV_1);

//Set clock 2 to 32.768KHz
// 25mhz crystal osc * (28 + (7012/390625)) = 700.448768
// 700.448768 / (1336 + (0 / 1)) = .524288
// .524288 / 16 = .032768 = 32.768KHz

si5351_setupPLL(SI5351_PLL_B, 28, 7012, 390625);
si5351_setupMultisynth(2, SI5351_PLL_B, 1336, 0, 1);
si5351_setupRdiv(2, SI5351_R_DIV_16);

si5351_enableOutputs(0xFF);