HVSP needed! When ISP fuse is disabled and DW not working.

High Voltage Serial Programming – (sometimes known as SHVP).

The AVR Studio 4 way:

Connect. Select HVSP. Go.

THE AtmelStudio 7 way:

View > Available Atmel Tools shows only the JTAGICE mkII and the Simulator. Go to Tools > Add target. Or write STK in the upper-right box called “Quick Launch” and the Add target dialog appears. (I tried also PICkit, but it’s still not there)

HVSP Links:

• STK500 Schematic: http://www.atmel.com/webdoc/stk500/images/STK500.pdf
• STK500 component placement: http://www.atmel.com/webdoc/stk500/images/A9903.3.1000C_assy_draw.pdf
• The HV_PROG header on AVR Dragon: http://www.atmel.com/webdoc/avrdragon/avrdragon.section.hoj_dsd_lc.html
• STK SHVP page: http://www.atmel.com/webdoc/stk500/stk500.SHVProgramming.html
• STK500 socket usage: http://www.atmel.com/webdoc/stk500/stk500.highVoltageProgramming.html
• Re-enabling the SPI interface: http://www.atmel.com/webdoc/avrdragon/avrdragon.section.gsr_osd_lc.html