I am trying to get BootloadHID example working on my Mega324P.
First of all, the µC works fine with USBasp and HIDKeys example, so I think HW should be ok. Problem is that USBasp is not really soupported for WIN7 x64 (driver issue). So I would like to use BootloadHID example.
Here is what I have changed:
bootloaderconfig:
Code: Select all
#define USB_CFG_IOPORTNAME D
/* This is the port where the USB bus is connected. When you configure it to
* "B", the registers PORTB, PINB and DDRB will be used.
*/
#define USB_CFG_DMINUS_BIT 3
/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
* This may be any bit in the port.
*/
#define USB_CFG_DPLUS_BIT 2
...
#ifndef __ASSEMBLER__ /* assembler cannot parse function definitions */
#include <util/delay.h>
static inline void bootLoaderInit(void)
{
PORTB = 1 << 0; /* activate pull-up for key */
_delay_us(10); /* wait for levels to stabilize */
}
#define bootLoaderCondition() ((PINB & (1 << 0)) == 0) /* True if jumper is set */
#endif
makefile:
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DEVICE = atmega324p
BOOTLOADER_ADDRESS = 7000
F_CPU = 12000000
FUSEH = 0xD8
FUSEL = 0xff
main:
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int __attribute__((noreturn)) main(void)
{
bootLoaderInit();
odDebugInit();
uchar* data = "HELLO";
DBG1(0x00, data, 5);
DBG1(0x00, 0, 0);
...
}
compile output:
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C:\Temp\bootloadHID.2010-07-29\firmware>make
avr-gcc -Wall -Os -Iusbdrv -I. -mmcu=atmega324p -DF_CPU=12000000 -DDEBUG_LEVEL=2
-c main.c -o main.o
In file included from main.c:22:
usbdrv/oddebug.c:15:2: warning: #warning "Never compile production devices with
debugging enabled"
main.c: In function 'main':
main.c:224: warning: pointer targets in initialization differ in signedness
main.c: At top level:
usbdrv/usbdrv.h:211: warning: 'usbFunctionDescriptor' used but never defined
usbdrv/usbdrv.h:218: warning: 'usbSetInterrupt' declared 'static' but never defi
ned
avr-gcc -Wall -Os -Iusbdrv -I. -mmcu=atmega324p -DF_CPU=12000000 -DDEBUG_LEVEL=2
-o main.bin usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o -Wl,--section-start=.te
xt=7000
rm -f main.hex main.eep.hex
avr-objcopy -j .text -j .data -O ihex main.bin main.hex
avr-size main.bin
text data bss dec hex filename
2184 16 49 2249 8c9 main.bin
The rest is like in example already given.
Here is the serial debug output:
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þ00: 48 45 4c 4c 4f
00:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
ff:
So I think the bootloader starts, but is not possible to do the usb connection. I have tried with an ATMega32 but the result is the same, no connection to PC.
I have no idea what is going wrong, so please give me a hint...
regards
MB
