microlo75
Joined: 13 Apr 2010
Posts: 23
|
| Help for Bootloader USB |
 Posted: Thu Apr 05, 2012 3:25 am |
 |
|
H forum,
use PIC24FJ256GB110 Compiler V. 4.131
I reserved the beginning of the program to use the USB bootloader
But a strange thing happens in "usb_gets and other...",
when I make changes in the program vary the size of the routines in the bootloader!
example:
program code before the change:
main...
| Code: |
if(BUTTON_1)
{
LED_TX_RADIO;
BLOCCO_RADAR(TRUE);
PTT(TRUE);
.....
etc. etc.
|
usb_gets START 0x01662 END 0x016EC
| Code: |
2866 01662 200004 usb_gets mov.w #0x0,w4
2867 01664 899834 mov.w w4,0x3306
2868 01666 8197F0 mov.w 0x32fe,w0
2869 01668 EF6001 clr.b 0x0001
2870 0166A DD0041 sl w0,#1,w0
2871 0166C 020262 call @const197
2872 0166E 000000 nop
2873 01670 899860 mov.w w0,0x330c
2874 01672 819860 mov.w 0x330c,w0
2875 01674 819814 mov.w 0x3302,w4
2876 01676 E12000 cp.w w4,w0
2877 01678 360004 bra leu, 0x001682
2878 0167A F8330C push.w 0x330c
2879 0167C F9330E pop.w 0x330e
2880 0167E 041686 goto 0x001686
2881 01680 000000 nop
2882 01682 F83302 push.w 0x3302
2883 01684 F9330E pop.w 0x330e
2884 01686 200004 mov.w #0x0,w4
2885 01688 899844 mov.w w4,0x3308
2886 0168A 8197F0 mov.w 0x32fe,w0
2887 0168C F83318 push.w 0x3318
2888 0168E 9FFFE0 mov.b w0,[w15-2]
2889 01690 F93318 pop.w 0x3318
2890 01692 020410 call usb_kbhit
2891 01694 000000 nop
2892 01696 E00400 cp0.b w0
2893 01698 32001B bra z, 0x0016d0
2894 0169A 8197F0 mov.w 0x32fe,w0
2895 0169C F83318 push.w 0x3318
2896 0169E 9FFFE0 mov.b w0,[w15-2]
2897 016A0 F93318 pop.w 0x3318
2898 016A2 F83300 push.w 0x3300
2899 016A4 F9331A pop.w 0x331a
2900 016A6 F8330E push.w 0x330e
2901 016A8 F9331C pop.w 0x331c
2902 016AA 0207E4 call usb_get_packet
2903 016AC 000000 nop
2904 016AE 899850 mov.w w0,0x330a
2905 016B0 819800 mov.w 0x3300,w0
2906 016B2 819854 mov.w 0x330a,w4
2907 016B4 400004 add.w w0,w4,w0
2908 016B6 899800 mov.w w0,0x3300
2909 016B8 819810 mov.w 0x3302,w0
2910 016BA 819854 mov.w 0x330a,w4
2911 016BC 500004 sub.w w0,w4,w0
2912 016BE 899810 mov.w w0,0x3302
2913 016C0 819830 mov.w 0x3306,w0
2914 016C2 819854 mov.w 0x330a,w4
2915 016C4 400004 add.w w0,w4,w0
2916 016C6 899830 mov.w w0,0x3306
2917 016C8 0416E2 goto 0x0016e2
2918 016CA 000000 nop
2919 016CC 0416DA goto 0x0016da
2920 016CE 000000 nop
2921 016D0 819840 mov.w 0x3308,w0
2922 016D2 E80000 inc.w w0,w0
2923 016D4 899840 mov.w w0,0x3308
2924 016D6 093E7E repeat #15998
2925 016D8 000000 nop
2926 016DA 819840 mov.w 0x3308,w0
2927 016DC 819824 mov.w 0x3304,w4
2928 016DE E12000 cp.w w4,w0
2929 016E0 3AFFD4 bra nz, 0x00168a
2930 016E2 819850 mov.w 0x330a,w0
2931 016E4 819864 mov.w 0x330c,w4
2932 016E6 E12000 cp.w w4,w0
2933 016E8 3A000A bra nz, 0x0016fe
2934 016EA 819820 mov.w 0x3304,w0
2935 016EC E00000 cp0.w w0
|
program code after the change:
main...
| Code: |
if(BUTTON_1)
{
char Buffer_USB[]="ciao";
if(strncmp(USB_firmware,Buffer_USB,4)==0)
pippo=1;
LED_TX_RADIO;
BLOCCO_RADAR(TRUE);
PTT(TRUE);
.....
etc. etc.
[b]usb_gets START 0x01662 END 0x01700[/b]
2866 01662 200004 usb_gets mov.w #0x0,w4
2867 01664 899834 mov.w w4,0x3306
2868 01666 8197F0 mov.w 0x32fe,w0
2869 01668 EF6001 clr.b 0x0001
2870 0166A DD0041 sl w0,#1,w0
2871 0166C 020262 call @const197
2872 0166E 000000 nop
2873 01670 899860 mov.w w0,0x330c
2874 01672 819860 mov.w 0x330c,w0
2875 01674 819814 mov.w 0x3302,w4
2876 01676 E12000 cp.w w4,w0
2877 01678 360004 bra leu, 0x001682
2878 0167A F8330C push.w 0x330c
2879 0167C F9330E pop.w 0x330e
2880 0167E 041686 goto 0x001686
2881 01680 000000 nop
2882 01682 F83302 push.w 0x3302
2883 01684 F9330E pop.w 0x330e
2884 01686 200004 mov.w #0x0,w4
2885 01688 899844 mov.w w4,0x3308
2886 0168A 8197F0 mov.w 0x32fe,w0
2887 0168C F83318 push.w 0x3318
2888 0168E 9FFFE0 mov.b w0,[w15-2]
2889 01690 F93318 pop.w 0x3318
2890 01692 020410 call usb_kbhit
2891 01694 000000 nop
2892 01696 E00400 cp0.b w0
2893 01698 32001B bra z, 0x0016d0
2894 0169A 8197F0 mov.w 0x32fe,w0
2895 0169C F83318 push.w 0x3318
2896 0169E 9FFFE0 mov.b w0,[w15-2]
2897 016A0 F93318 pop.w 0x3318
2898 016A2 F83300 push.w 0x3300
2899 016A4 F9331A pop.w 0x331a
2900 016A6 F8330E push.w 0x330e
2901 016A8 F9331C pop.w 0x331c
2902 016AA 0207E4 call usb_get_packet
2903 016AC 000000 nop
2904 016AE 899850 mov.w w0,0x330a
2905 016B0 819800 mov.w 0x3300,w0
2906 016B2 819854 mov.w 0x330a,w4
2907 016B4 400004 add.w w0,w4,w0
2908 016B6 899800 mov.w w0,0x3300
2909 016B8 819810 mov.w 0x3302,w0
2910 016BA 819854 mov.w 0x330a,w4
2911 016BC 500004 sub.w w0,w4,w0
2912 016BE 899810 mov.w w0,0x3302
2913 016C0 819830 mov.w 0x3306,w0
2914 016C2 819854 mov.w 0x330a,w4
2915 016C4 400004 add.w w0,w4,w0
2916 016C6 899830 mov.w w0,0x3306
2917 016C8 0416E2 goto 0x0016e2
2918 016CA 000000 nop
2919 016CC 0416DA goto 0x0016da
2920 016CE 000000 nop
2921 016D0 819840 mov.w 0x3308,w0
2922 016D2 E80000 inc.w w0,w0
2923 016D4 899840 mov.w w0,0x3308
2924 016D6 093E7E repeat #15998
2925 016D8 000000 nop
2926 016DA 819840 mov.w 0x3308,w0
2927 016DC 819824 mov.w 0x3304,w4
2928 016DE E12000 cp.w w4,w0
2929 016E0 3AFFD4 bra nz, 0x00168a
2930 016E2 819850 mov.w 0x330a,w0
2931 016E4 819864 mov.w 0x330c,w4
2932 016E6 E12000 cp.w w4,w0
2933 016E8 3A000A bra nz, 0x0016fe
2934 016EA 819820 mov.w 0x3304,w0
2935 016EC E00000 cp0.w w0
2936 016EE 320004 bra z, 0x0016f8
2937 016F0 819840 mov.w 0x3308,w0
2938 016F2 819824 mov.w 0x3304,w4
2939 016F4 E12000 cp.w w4,w0
2940 016F6 320003 bra z, 0x0016fe
2941 016F8 819810 mov.w 0x3302,w0
2942 016FA E00000 cp0.w w0
2943 016FC 3AFFBA bra nz, 0x001672
2944 016FE F83306 push.w 0x3306
2945 01700 F90000 pop.w w0
|
Why change??
This causes me problems after updating bootloader!
Thanks for help.
Alex |
|
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