main.c

P89C669的IAP编程

// 669 IAP Library Demonstration Project

// Version 1.00 (18-Sep-2003)
// by A. Ayre
// (C) Embedded Systems Academy 2003

// Demonstrates some of the functions in the 669 In-Application Programming
// Library. Written for a device using a 20MHz crystal. Tested on a Phytec
// P89C51Rx2 PhyCORE module and Development Board

// To see the output, connect UART to PC COM Port and connect using
// a terminal program such as Hyperterm. Settings:
// 8-N-1, 9600 baud, no flow control

#include <stdio.h>
#include <reg51m.h>
#include "669iaplib.h"

// function uart_init
// initializes the UART to 8-N-1, 9600 baud @ 20MHz
void uart_init(void)
{
  S0CON = 0x52;  // mode 1, reception enable
  T2CON |= 0x30;
  BRGR0 = 0x13;
  BRGR1 = 0x08;
  BRGCON = 0x03;   // use baud rate generator
}

void main(void)
{
  uart_init();

  printf("669 IAP Test\n");

  printf("Manufacturer ID = %2.2bX\n", iap_read_manufacturer_id());
  printf("Device ID 1 = %2.2bX\n", iap_read_device_id(1));
  printf("Device ID 2 = %2.2bX\n", iap_read_device_id(2));
  printf("Security bits = %2.2bX\n", iap_read_security_bits());

  printf("0x004000 contains %2.2bX\n", iap_read_data_byte(0x4000, 0x00));
  
  if (!iap_program_data_byte(0x55, 0x4000, 0x00))
    printf("0x004000 programmed to 0x55 ok\n");
  else
    printf("Error programming 0x004000 to 0x55\n");

  printf("0x004000 contains %2.2bX\n", iap_read_data_byte(0x4000, 0x00));

  if (!iap_erase_block(BLOCK_2))
    printf("Block 2 erased\n");
  else
    printf("Error erasing block 2\n");

  printf("0x004000 contains %2.2bX\n", iap_read_data_byte(0x4000, 0x00));

  printf("Boot Vector = %4.4X\n", iap_read_boot_vector());
  printf("Status Byte = %2.2bX\n", iap_read_status_byte());

  iap_program_security_bits(SECURITY_BIT_1);
  printf("Programmed security bit 1\n");
  printf("Security bits = %2.2bX\n", iap_read_security_bits());

  iap_program_security_bits(SECURITY_BIT_2);
  printf("Programmed security bit 2\n");
  printf("Security bits = %2.2bX\n", iap_read_security_bits());

  iap_program_security_bits(SECURITY_BIT_3);
  printf("Programmed security bit 3\n");
  printf("Security bits = %2.2bX\n", iap_read_security_bits());

  while(1);
}