ISP programming does not work |
ISP cable is not connected |
Connect a 6-pin cable between the ISP6PIN connector on STK500
and the ISP connector on STK504. See Programming the AVR for setup. |
The reset signal is not connected to the AVR on
STK504 |
Mount a jumper on pin 6 and 8 on PORTG |
The AVR is running at too low clock frequency |
Make sure the clock switch on STK500 is in the right
position. In the Board page of the programming dialog in AVR
Studio, try reducing the clock frequency to less or equal to the
frequency the AVR is running at. |
High Voltage programming does not work |
The 10-pin cables are not connected correctly |
See Programming the AVR for
setup |
The BSEL2, OSCSEL, RESET and VTARGET jumpers on STK500 are
not set right. The jumper on pin 6 and 8 on the PORTG header is
not mounted |
The BSEL2, OSCSEL, RESET and VTARGET jumpers on STK500 are
not set right. The jumper on pin 6 and 8 on the PORTG header is
not mounted |
Set the switch to the EXT position. See also Programming the AVR
|