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philippe320
Joined: 30 Dec 2005
Posts: 11
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| Incompatibility between HID bootloader and CCS USB routines |
 Posted: Fri Nov 14, 2008 10:51 am |
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Hello everybody,
Here is my code :
| Code: |
//set to 1 to use a PIC's internal USB Peripheral
//set to 0 to use a National USBN960x peripheral
#define __USB_PIC_PERIF__ 1
#if !defined(__PCH__)
#error USB CDC Library requires PIC18
#endif
#include <18F2550.h>
#build(reset=0x1000)
#build(interrupt=0x1008)
#org 0,0x0FFF void bootloader() {} // nothing will replace the bootloader memory space
#fuses USBDIV,PLL5,CPUDIV2,HSPLL
#fuses NOIESO,NOFCMEN,NOWRT
#fuses VREGEN,BORV20,NOBROWNOUT,NOPUT
#fuses NOWDT,WDT32768,CCP2C1
#fuses NOPBADEN,NOLPT1OSC,MCLR
#fuses NODEBUG,STVREN,NOLVP,NOXINST
#use delay(clock=48000000)
#include <usb_cdc.h>
void Init_PIC();
void Blinking();
/////////////////////////////////////////////////////////////////////////////
//
// Configure the demonstration I/O
//
/////////////////////////////////////////////////////////////////////////////
#define LED_ON output_high
#define LED_OFF output_low
#define LED_TOGGLE output_toggle
#define TSOP PIN_B7
#define LED_bleue PIN_B6
//___________________________________________________
void main(void) {
Init_PIC();
// 2 blinkings;
Blinking();
Blinking();
while (TRUE) {
if (!input(TSOP)) LED_ON(LED_bleue);
else LED_OFF(LED_bleue);
} //while
} //main
//___________________________________________________
void Init_PIC() {
LED_OFF(LED_bleue);
} //proc
//___________________________________________________
void Blinking() {
LED_ON(LED_bleue);
delay_ms(100);
LED_OFF(LED_bleue);
delay_ms(900);
} //proc
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When simply flashed into the PIC, it's working perfectly :
the LED is blinking twice, and the accordingly the TSOP input (remote control receiver)
But when using the HID bootloader from Microchip modified for the 18F2550, I have some problems :
without the line
| Code: |
#include <usb_cdc.h>
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it's still working
but WITH that line, the PIC hangs (very fast LED blinking then nothing)
What kind of conflict could I have?
Thanks in advance for your reply
Philippe |
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Ttelmah
Guest
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| Posted: Fri Nov 14, 2008 3:51 pm |
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Obvious question is how the interrupt redirection is handled in the bootloader.
Best Wishes |
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philippe320
Joined: 30 Dec 2005
Posts: 11
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| Posted: Sun Nov 16, 2008 4:28 am |
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YES ! 
very very strange :
after many and many tests, I reinstalled CCS, and thus the USB files, recompiled everything and ...
IT'S WORKING !
(I probably modified something the the usb drivers files ...)
thank you Ttelmah for your reply
Philippe |
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