diff options
Diffstat (limited to 'src/rp2040/main.c')
| -rw-r--r-- | src/rp2040/main.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/rp2040/main.c b/src/rp2040/main.c index 35e4f55d..7b36856a 100644 --- a/src/rp2040/main.c +++ b/src/rp2040/main.c @@ -42,6 +42,7 @@ DECL_INIT(watchdog_init); #define FREQ_XOSC 12000000 #define FREQ_SYS 125000000 +#define FREQ_USB 48000000 void enable_pclock(uint32_t reset_bit) @@ -126,8 +127,13 @@ clock_setup(void) while (!(csys->selected & (1 << 1))) ; - // Setup clk_peri + // Setup pll_usb + enable_pclock(RESETS_RESET_PLL_USB_BITS); + pll_setup(pll_usb_hw, 40, 40*FREQ_XOSC/FREQ_USB); + + // Setup clk_peri and clk_adc clk_aux_setup(clk_peri, CLOCKS_CLK_PERI_CTRL_AUXSRC_VALUE_CLK_SYS); + clk_aux_setup(clk_adc, CLOCKS_CLK_ADC_CTRL_AUXSRC_VALUE_CLKSRC_PLL_USB); // Enable watchdog tick (at 12Mhz) cref->div = 1<<CLOCKS_CLK_REF_DIV_INT_LSB; |