Home › Forums › gShield › grblShield Support › Verification error when flashing Arduino
- This topic has 4 replies, 3 voices, and was last updated 13 years, 6 months ago by dkirtley.
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April 11, 2011 at 3:47 pm #1607robogroboMember
Hi there
I have a problem when i’m using your patched hex file to flash my Arduino (328).
I always get:avrdude -p m328p -c usbtiny -P /dev/tty.usbserial-A7006SAQ -b9600 -D -Uflash:w:grbl.hex
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.01s
avrdude: Device signature = 0x1e950f
avrdude: reading input file “grbl.hex”
avrdude: input file grbl.hex auto detected as Intel Hex
avrdude: writing flash (17418 bytes):Writing | ################################################## | 100% 28.33s
avrdude: 17418 bytes of flash written
avrdude: verifying flash memory against grbl.hex:
avrdude: load data flash data from input file grbl.hex:
avrdude: input file grbl.hex auto detected as Intel Hex
avrdude: input file grbl.hex contains 17418 bytes
avrdude: reading on-chip flash data:Reading | ################################################## | 100% 16.86s
avrdude: verifying …
avrdude: verification error, first mismatch at byte 0x0002
0xcb != 0x41
avrdude: verification error; content mismatchavrdude: safemode: Fuses OK
avrdude done. Thank you.
Same, when i’m using the compiled hex file from the master branch on the github page from DANK.
No problem if i’m compiling the hex file on my machine, flashing works!What are your fixes with the patch? Can you put the source files with the patch on your github page?
Thank you for your help.
April 14, 2011 at 7:41 am #1608RileyKeymasterYou said you got an Arduino UNO in a email. Does it toss up the SAME error code when you try it?
Try this avr-dude line:avrdude -p m328p -c usbtiny -P /dev/tty.usbserial-A7006SAQ -b9600 -D -U flash:w:default/grbl.hex
ril3y
April 15, 2011 at 8:21 am #1609robogroboMemberThanks to Riley it works now. My ISP Programmer (usbtiny from adafruit) didn’t like the parameter “-b 9600”. So after removing it, every worked well when flashing my Arduino.
April 15, 2011 at 8:55 pm #1610RileyKeymasterAHA! Very cool… I got home from work today and tried it out on my Macbook. Of course I still used my avrispmkII vs. your TinyISP. However it worked with avrdude today:
ril3ys-MacBook-Pro:~$ avrdude -c avrispmkII -P usb -p atmega328p -U flash:w:Downloads/grbl_0_6b_atmega328p_16mhz_9600_with_grblshield_patch.hex
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f
avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file “Downloads/grbl_0_6b_atmega328p_16mhz_9600_with_grblshield_patch.hex”
avrdude: input file Downloads/grbl_0_6b_atmega328p_16mhz_9600_with_grblshield_patch.hex auto detected as Intel Hex
avrdude: writing flash (17418 bytes):
Writing | ################################################## | 100% 5.41s
avrdude: 17418 bytes of flash written
avrdude: verifying flash memory against Downloads/grbl_0_6b_atmega328p_16mhz_9600_with_grblshield_patch.hex:
avrdude: load data flash data from input file Downloads/grbl_0_6b_atmega328p_16mhz_9600_with_grblshield_patch.hex:
avrdude: input file Downloads/grbl_0_6b_atmega328p_16mhz_9600_with_grblshield_patch.hex auto detected as Intel Hex
avrdude: input file Downloads/grbl_0_6b_atmega328p_16mhz_9600_with_grblshield_patch.hex contains 17418 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 4.99s
avrdude: verifying …
avrdude: 17418 bytes of flash verified
avrdude: safemode: Fuses OK
avrdude done. Thank you.
ril3ys-MacBook-Pro:~$If you are on OSX the AVR Mac Pack is a beautiful thing! Its a complete compiled toolchain for AVR. I installed that updated my path and I was good to go. I say this just an FYI for others.
Riley
May 5, 2011 at 10:48 am #1611dkirtleyMemberJust one more data point, I had to set my baud rate for flashing at 57600 to get it to play nice.
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