#define AO_PLL1_P 2 /* down to 96MHz */
#define AO_PLL1_Q 4 /* down to 48MHz for USB and SDIO */
#define AO_AHB_PRESCALER 1
#define AO_RCC_CFGR_HPRE_DIV STM_RCC_CFGR_HPRE_DIV_1
#define AO_PLL1_P 2 /* down to 96MHz */
#define AO_PLL1_Q 4 /* down to 48MHz for USB and SDIO */
#define AO_AHB_PRESCALER 1
#define AO_RCC_CFGR_HPRE_DIV STM_RCC_CFGR_HPRE_DIV_1