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joven
Joined: 30 Jan 2007
Posts: 56
Location: Viana do Castelo - Portugal
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| USB bootloader |
 Posted: Fri Apr 20, 2007 5:25 am |
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Hi
I'm testing the usb bootloader, but i haven't sucess.
In the fuses have #fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN,NOPBADEN,WRTB
When load the hex file don't give-me any warnings.
the problem is I don't know exactly i have to put for #org and #build.
i have tested some i found in the forum and didn't work.
Someone can help-me?
Thanks |
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NicolasC
Joined: 14 Sep 2006
Posts: 27
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| Posted: Fri Apr 20, 2007 5:39 am |
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Hello
This is what I have in my main .c file for a PIC18F2550
| Code: |
#include "bootloader.h"
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN,NOPBADEN,WRTB
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bootloader.h
| Code: |
#if defined(__PCM__)
#define LOADER_END 0x1FF
//#define LOADER_SIZE 0x1BF
#elif defined(__PCH__)
#define LOADER_END 0x7FF
//#define LOADER_SIZE 0x6FF
#endif
#ifndef _bootloader
#define _bootloader
#if defined(__PCM__)
#build(reset=LOADER_END+1, interrupt=LOADER_END+5)
#elif defined(__PCH__)
#build(reset=LOADER_END+2, interrupt=LOADER_END+9)
#endif
#org 0, LOADER_END void bootloader(void) {}
#endif |
Regards |
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joven
Joined: 30 Jan 2007
Posts: 56
Location: Viana do Castelo - Portugal
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| Posted: Fri Apr 20, 2007 8:35 am |
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i'm using 18F4550 the memory is the same?
Isn't working.
the message of PSUSB is nº 6 the indicator is invalid.
What can be? |
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meereck
Joined: 09 Nov 2006
Posts: 173
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| Posted: Tue Apr 24, 2007 5:18 am |
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The USB bootloader stopped to work after you had downloaded an user application, I guess.
I had several problems with fuses as well. I found out that when Pdfsusb application asks you what to do with the fuses, I have to click on "Cancel". Otherwise the bootloader sometimes stopped to work.
Flash a PIC with the bootloader again and use the following stencil for an user application (change your USB settings in fuses):
| Code: |
#include <18f2455.h>
#device ADC=10 // 10 bits return value from ADC
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL6,CPUDIV1,VREGEN,NOPBADEN,WRTB,MCLR,NOCPD,NOWRTC
#use delay(clock=48000000)// full speed USB device
#use rs232(baud=19200,xmit=PIN_C6, rcv=PIN_C7, STREAM=RS232)
// START OF bootloader definition
#define LOADER_END 0x7FF
#define LOADER_SIZE 0x6FF
#build(reset=LOADER_END+1, interrupt=LOADER_END+9)
#org 0, LOADER_END {} // nothing will replace the bootloader memory space
// END OF bootloader definition
#define TICKS_PER_SECOND 183 //183 how often per second is timerirq routine called
byte timing = 0;
#int_rtcc
void timerirq()
{
if(++timing==TICKS_PER_SECOND){fprintf(RS232,"irq\r\n");
timing=0;output_toggle(PIN_B0);}
}
void main()
{
fprintf(RS232,"load\r\n");
output_low(PIN_B0);
set_timer0(0);
setup_counters( RTCC_INTERNAL, RTCC_DIV_256 | RTCC_8_BIT);
enable_interrupts(INT_RTCC);
enable_interrupts(GLOBAL);
while(1);
}
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joven
Joined: 30 Jan 2007
Posts: 56
Location: Viana do Castelo - Portugal
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softjad
Joined: 21 Sep 2006
Posts: 3
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| Posted: Thu Jun 21, 2007 4:27 pm |
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How can I use this bootloader in automatic mode (without manual reset...)?
Thanks |
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joven
Joined: 30 Jan 2007
Posts: 56
Location: Viana do Castelo - Portugal
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