#include "usbh_core.h"
#include "bflb_mtimer.h"
#include "board.h"

#include "usbd_core.h"
#include "usbd_cdc.h"

extern void cdc_acm_init(void);
extern void cdc_acm_data_send_with_dtr(const uint8_t *, uint32_t);

uint32_t buffer_init(char *);

USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer_main[2048];

int main(void)
{
    board_init();
    uint32_t data_len = buffer_init("Hello world!\r\n");

    cdc_acm_init();
    while (1) {
        cdc_acm_data_send_with_dtr(write_buffer_main, data_len);
        bflb_mtimer_delay_ms(2000);
    }
}

uint32_t buffer_init(char *data) {

  uint32_t data_len = 0;
  for (ssize_t inx = 0; data[inx]; inx++) {
    write_buffer_main[inx] = data[inx];
    if (data[inx]) data_len++;
  }
  return data_len;
}