1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <unistd.h>
4 #include <stdint.h>
5
6 void usage()
7 {
8 fprintf(stderr,
9 "\nUsage: mcu_dload [OPTIONS] *.bin\n"
10 " -a Specify device I2C slave address(7Bit), eg: -a 5E, default is 0x58\n"
11 " -d Download binary code for MCU only\n"
12 " -h This Page.\n\n"
13 );
14 exit(0);
15 }
16
17 uint8_t asc2hex(char asccode)
18 {
19 uint8_t ret;
20 if('0' <= asccode && asccode <= '9')
21 ret = asccode - '0';
22 else if('a' <= asccode && asccode <= 'f')
23 ret = asccode -'a' + 10;
24 else if('A' <= asccode && asccode <= 'F')
25 ret = asccode - 'A' + 10;
26 else ret = 0;
27 return ret;
28 }
29
30 int main(int argc, char **argv)
31 {
32 int opt;
33 uint32_t i = 0;
34 uint8_t i2c_adr = 0x58, i2c_reg;
35 FILE *fp;
36
37 // Parse Command Line Options
38 while((opt = getopt(argc, argv, "a:h?")) != EOF) {
39 switch(opt) {
40 case 'a':
41 i2c_adr = (asc2hex(optarg[0]) << 4) | asc2hex(optarg[1]);
42 printf("I2C Device Address(7Bit) is 0x%2X.\n", i2c_adr);
43 break;
44 case 'h':
45 case '?':
46 default:
47 usage();
48 break;
49 }
50 }
51
52 // Last One is the input file
53 if(optind + 1 != argc) {
54 printf("Input file not found!\n");
55 usage();
56 exit(0);
57 }
58
59 // Open *.bin file and download it to MCU
60 fp = fopen(argv[optind], "r");
61 if(fp == NULL) {
62 printf("Input file can not open!\n");
63 usage();
64 exit(0);
65 }
66
67 // Get file size
68 fseek(fp, 0L, SEEK_SET);
69 fseek(fp, 0L, SEEK_END);
70 uint32_t binsize = ftell(fp);
71 printf("Inpuf file size is %d Bytes.\n", binsize);
72
73 uint8_t *bincode = (uint8_t *)malloc(binsize);
74 fseek(fp, 0L, SEEK_SET);
75 fread(bincode, 1L, binsize, fp);
76 fclose(fp);
77
78 // Download
79 printf("Reset MCU ...\n");
80 printf("Dowloading bin ...\n");
81
82 uint32_t dpos = binsize >> 6;
83 for(i = 0; i < binsize; ++i) {
84 if(i % dpos == 0) printf("#");
85 usleep(5000);
86 //CH341WriteI2C(0, i2c_adr, i2c_reg, bincode[i]);
87 fflush(stdout);
88 }
89 printf("\nFile download succeed, %d Bytes transfered!\n", binsize);
90
91 free(bincode);
92 return 0;
93 }
