Date:2010-10-16 18:34:36 (2 years 7 months ago)
Author:Carlos Camargo
Commit:ee10724112267b00e4fe8adbaa32f80a42709766
Message:fixing xmode initial delay
Files: lm32/logic/sakc/firmware/cain_loader/image.ram (12 diffs)
lm32/logic/sakc/firmware/cain_loader/main.c (3 diffs)
lm32/logic/sakc/firmware/cain_loader/xmodem.c (1 diff)

Change Details

lm32/logic/sakc/firmware/cain_loader/image.ram
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lm32/logic/sakc/firmware/cain_loader/main.c
4747    // Initialize UART
4848    uart_init();
4949
50
51
52
5350  while(1){ /* loop forever until u-boot gets booted or the board is reset */
5451    if(dispmenu){
5552     uart_putstr("\n1: Upload program to RAM\r\n");
...... 
6057// uart_putstr("6: Memory test\r\n");
6158      dispmenu = 0;
6259    }
63
6460      key = uart_getchar();
6561      autoboot = 0;
66
6762    if(key == '1'){
68      len = rxmodem((unsigned char *)0x2000);
63      len = rxmodem((unsigned char *)0x800);
6964      uart_putstr("Received ");
7065      hexprint(len);
7166      uart_putstr(" bytes\r\n");
...... 
8176
8277  }
8378
84
85
86    c = '*'; // print msg on first iteration
87    for(;;) {
88        uint32_t start, size;
89
90        switch (c) {
91            case 'u': // upload
92                start = read_uint32();
93                size = read_uint32();
94                for (p = (int8_t *) start; p < (int8_t *) (start+size); p++)
95                    *p = uart_getchar();
96                break;
97        case 'd': // download
98                start = read_uint32();
99                size = read_uint32();
100                for (p = (int8_t *) start; p < (int8_t *) (start+size); p++)
101                uart_putchar( *p );
102                break;
103            case 'g': // goto
104                start = read_uint32();
105                jump(start);
106                break;
107        default:
108            uart_putstr("**SAKC/bootloader** > \r\n");
109            break;
110        };
111        c = uart_getchar();
112    }
11379}
11480
lm32/logic/sakc/firmware/cain_loader/xmodem.c
7777    unsigned short crc, tcrc;
7878    int i, pid = 1, len = 0;
7979
80        for(i = 0; i < 0x20000; i++) { asm("nop;"); }
81    uart_putstr("Receiving Xmodem transfer\n");
8280    uart_getchar ();
83        for(i = 0; i < 0x20000; i++) { asm("nop;"); }
81        for(i = 0; i < 0x4000000; i++) { asm("nop;"); }
8482    uart_putchar ('C');
8583
8684    while(1)
8785    {
88        int c, pid1, pid2;
86        char c, pid1, pid2;
87
88        c = uart_getchar();
8989
90        c = uart_getchar ();
9190        if (c != SOH)
9291        {
9392            if (c == EOT)

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