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#include "project.h"
#define WIGGLE GPIO4
#define WIGGLE_PORT GPIOB
int
main (void)
{
unsigned cnt = 0;
//nvic_set_priority_grouping(NVIC_PriorityGroup_4);
/*set up pll */
rcc_clock_setup_in_hse_8mhz_out_72mhz ();
/*turn on clocks which aren't done elsewhere */
rcc_periph_clock_enable (RCC_GPIOA);
rcc_periph_clock_enable (RCC_GPIOB);
rcc_periph_clock_enable (RCC_GPIOC);
rcc_periph_clock_enable (RCC_AFIO);
/*Adjust interrupt priorities so that taco trumps uarts trumps timer trumps dma */
nvic_set_priority (TACHO_IRQ, 0x20);
nvic_set_priority (NVIC_USART1_IRQ, 0x40);
nvic_set_priority (NVIC_SYSTICK_IRQ, 0x60);
nvic_set_priority (NVIC_DMA1_CHANNEL6_IRQ, 0x80);
/* Claw some pins pack */
gpio_primary_remap (AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON, 0);
dwt_enable_cycle_counter ();
ticker_init ();
led_init ();
usart_init ();
i2cp_init ();
printf ("Hello world\n");
led_set ();
oled_init ();
tacho_init ();
font8x8_put_str ("ABC fish soup!", 0, 0);
MAP_OUTPUT_PP (WIGGLE);
for (;;)
{
char buf[20];
sprintf (buf, "%6u rpm", (unsigned) raw_tacho);
font8x16_put_str (buf, 30, 8);
sprintf (buf, "%8d", cnt++);
font8x8_put_str (buf, 0, 24);
if (cnt & 1)
SET (WIGGLE);
else
CLEAR (WIGGLE);
}
return 0;
}
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