diff options
Diffstat (limited to 'wirish/wirish.c')
| -rw-r--r-- | wirish/wirish.c | 60 |
1 files changed, 36 insertions, 24 deletions
diff --git a/wirish/wirish.c b/wirish/wirish.c index 28e7130..41f5db4 100644 --- a/wirish/wirish.c +++ b/wirish/wirish.c @@ -23,7 +23,14 @@ * ****************************************************************************/ /** - * @brief Maple board bring up + * @brief generic maple board bring up: + * + * By default, we bring up all maple boards running on the stm32 to 72mhz, + * clocked off the PLL, driven by the 8MHz external crystal. + * + * AHB and APB2 are clocked at 72MHz + * APB1 is clocked at 36MHz + * */ #include "wirish.h" @@ -32,35 +39,40 @@ #include "nvic.h" #include "usb.h" #include "rcc.h" +#include "fsmc.h" +#include "dac.h" #include "flash.h" -static void inline maple_flash_init(void) { +void init(void) { + /* make sure the flash is ready before spinning the high speed clock up */ flash_enable_prefetch(); flash_set_latency(FLASH_WAIT_STATE_2); -} -static void inline maple_rcc_init(void) { - struct rcc_device maple_rcc_dev = { - .apb1_prescale = RCC_APB1_HCLK_DIV_2, - .apb2_prescale = RCC_APB2_HCLK_DIV_1, - .ahb_prescale = RCC_AHB_SYSCLK_DIV_1, - .sysclk_src = RCC_CLKSRC_PLL, - .pll_src = RCC_PLLSRC_HSE, - .pll_mul = RCC_PLLMUL_9 - }; + #if HAS_FSMC + fsmc_native_sram_init(); + #endif + + #if NR_DAC_PINS > 0 + dac_init(); + #endif + + /* initialize clocks */ + rcc_clk_init(RCC_CLKSRC_PLL, RCC_PLLSRC_HSE, RCC_PLLMUL_9); + rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1); + rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_2); + rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_1); - rcc_init(&maple_rcc_dev); -} -void init(void) { - maple_flash_init(); - maple_rcc_init(); nvic_init(); - systick_init(); + systick_init(MAPLE_RELOAD_VAL); gpio_init(); -// adc_init(); -// timer_init(1, 1); -// timer_init(2, 1); -// timer_init(3, 1); -// timer_init(4, 1); -// setupUSB(); + adc_init(); + timer_init(1, 1); + timer_init(2, 1); + timer_init(3, 1); + timer_init(4, 1); + #if NR_TIMERS >= 8 + timer_init(5, 1); + timer_init(8, 1); + #endif + setupUSB(); } |