I'm trying to use the latest version of USBaspLoader on my Olimex AVR-CAN dev board (powered by an AT90CAN128) and cannot get my laptop to recognize the device.
I am 100% sure that my hardware isn't the problem, because the hid-mouse example works just fine (I'm pretty sure it's an addressing problem, because it only happens in the boot section).
Here's what I've changed in the original source-code so far:
I adjusted the makefile to reflect my board:
AT90CAN128
16MHz
Bootloader address = 0x1E000
I also had to change
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--section-start=.text=Code: Select all
--section-start=.bootloader=I edited the bootloaderconfig.h as follows:
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#define USB_CFG_IOPORTNAME E
#define USB_CFG_DMINUS_BIT 6
#define USB_CFG_DPLUS_BIT 7
#define USB_CFG_CLOCK_KHZ 16000
#define SIGNATURE_BYTES 0x1e, 0x97, 0x81, 0
#define bootLoaderCondition() 1and I edited usbconfig.h:
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#define USB_CFG_DRIVER_FLASH_PAGE 1
#define USB_INTR_CFG MCUCR
#define USB_INTR_CFG_SET ((1 << ISC70) | (1 << ISC71))
#define USB_INTR_ENABLE EIMSK
#define USB_INTR_ENABLE_BIT INT7
#define USB_INTR_PENDING EIFR
#define USB_INTR_PENDING_BIT INTF7
#define USB_INTR_VECTOR INT7_vectfinally I included the usbconfig.h on top of the usbdrv.c.
My fuses:
BOD disabled
On-Chip Debug enabled
JTAG enabled
SPI enabled
Boot section size=8KB starting at 0x1E000
Boot reset enabled
External Clock enabled (CKSEL=1111, SUT=00)
I also tried with and without Lockbits (0xFF vs. 0xEF).
I know that the bootloader gets called upon reset, because I enable the dev-boards LED in the main function (It doesn't light up when i set the bootloaderCondition to 0).
As mentioned above, compiling & uploading the hid-mouse using the same settings works just fine (although not in the boot section of course).
I also got the bootloader working on 2 different ATmega8 boards, so im very sure that it is an adressing problem.
Any Hints?