summaryrefslogtreecommitdiffstats
path: root/app/main.c
blob: a4a53943337b4e779ef0be2055bd68daa4e88c32 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
#include "project.h"
extern uint32_t dfu_flag;

int
main (void)
{


//  rcc_clock_setup_in_hsi_out_48mhz ();
  //nvic_set_priority_grouping(NVIC_PriorityGroup_4);

  /*set up pll */
  rcc_clock_setup_in_hse_8mhz_out_72mhz ();

  /*turn on clocks to periferals */
  rcc_periph_clock_enable (RCC_GPIOA);
  rcc_periph_clock_enable (RCC_GPIOB);
  rcc_periph_clock_enable (RCC_GPIOC);
  rcc_periph_clock_enable (RCC_USART1);
  rcc_periph_clock_enable (RCC_USART2);
  rcc_periph_clock_enable (RCC_USART3);
  rcc_periph_clock_enable (RCC_AFIO);

  ticker_init ();

  led_init ();
  usart_init ();
  usb_init ();

  /*Start periodic timer */
  /*Adjust interrupt priorities so that uarts trump timer */
  nvic_set_priority (NVIC_USART1_IRQ, 0x40);
  nvic_set_priority (NVIC_USART2_IRQ, 0x40);
  nvic_set_priority (NVIC_USART3_IRQ, 0x40);
  nvic_set_priority (NVIC_SYSTICK_IRQ, 0xff);


#if 0
  /*GPIO C11 was used to determine if we should enter dfu */
  /*now we use a ramdom address in ram */
  gpio_set (GPIOC, GPIO11);
  gpio_set_mode (GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
                 GPIO_CNF_OUTPUT_PUSHPULL, GPIO11);


  {
    int i;
    for (i = 0; i < 0x80000; i++)
      __asm__ ("nop");
  }

  gpio_clear (GPIOC, GPIO11);
#endif

  printf ("stm32_usb_kvm:\r\n");
  printf ("dfu_flag=%08lx\r\n", dfu_flag);

  usb_run ();



  return 0;
}