Exemplo n.º 1
0
void fpga_rompgm() {
  int MAXRETRIES = 10;
  int retries = MAXRETRIES;
  uint8_t data;
  int i;
  tick_t timeout;
  do {
    i=0;
    timeout = getticks() + 100;
    fpga_set_prog_b(0);
    uart_putc('P');
    fpga_set_prog_b(1);
    while(!fpga_get_initb()){
      if(getticks() > timeout) {
        printf("no response from FPGA trying to initiate configuration!\n");
        led_panic(LED_PANIC_FPGA_NO_INITB);
      }
    };
    timeout = getticks() + 100;
    while(fpga_get_done()) {
      if(getticks() > timeout) {
        printf("DONE is stuck high!\n");
        led_panic(LED_PANIC_FPGA_DONE_STUCK);
      }
    }
    LPC_GPIO2->FIOMASK1 = ~(BV(0));
    uart_putc('p');

    /* open configware file */
    rle_mem_init(cfgware, sizeof(cfgware));
    printf("sizeof(cfgware) = %d\n", sizeof(cfgware));
    for (;;) {
      data = rle_mem_getc();
      if(rle_state) break;
      i++;
      FPGA_SEND_BYTE_SERIAL(data);
    }
    uart_putc('c');
    printf("fpga_rompgm: %d bytes programmed\n", i);
    delay_ms(1);
  } while (!fpga_get_done() && retries--);
  if(!fpga_get_done()) {
    printf("FPGA failed to configure after %d tries.\n", MAXRETRIES);
    led_panic(LED_PANIC_FPGA_NOCONF);
  }
  printf("FPGA configured\n");
  fpga_config = FPGA_ROM;
  fpga_postinit();
}
Exemplo n.º 2
0
uint32_t load_bootrle(uint32_t base_addr) {
  uint8_t data;
  set_mcu_addr(base_addr);
  DWORD filesize = 0;
  rle_mem_init(bootrle, sizeof(bootrle));

  FPGA_SELECT();
  FPGA_TX_BYTE(0x98);
  for(;;) {
    data = rle_mem_getc();
    if(rle_state) break;
    FPGA_TX_BYTE(data);
    FPGA_WAIT_RDY();
    filesize++;
  }
  FPGA_DESELECT();
  return (uint32_t)filesize;
}