Atmel STK521, Руководство пользователя

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STK521 User Guide 2-7
8194B–AVR–01/12
To program the AVR using high-voltage (parallel) programming, connect the PROG_CTRL of the Atmel
STK500 to PRG_CTRL of the Atmel STK521 and PROG_DATA of STK500 to PRG_DATA of STK521
as shown in
Figure 2-4 . Make sure that the CLOCK switch is placed in the STK500 position.
The STK500 and STK521 jumpers & switches must must be configured as follows :
Table 2-2. High-Voltage programming jumper settings for the Atmel AT90PWM81.
Table 2-3. High-voltage programming switches settings for AT90PWM81.
The device can now be programmed using the high-voltage programming mode in the Atmel AVR Studio
STK500 software.
Note: See the Atmel STK500 User Guide for information on how to use the STK500 front-end software
in high-voltage programming mode.
For the high-voltage programming mode to function correctly, the target voltage must be higher
than 4.5V.
2.4 Atmel AVR JTAGICE mkII Connector
See the following document :
“JTAGICE mkII Quick Start Guide” which purpose is “Connecting to a target board with the AVR
JTAGICE mkII”.
This note explains which signals are required for ISP and which signals are required for debugWIRE.
Figure 2-5 shows how to connect the Atmel AVR JTAGICE mkII probe on the STK521 board.
STK500
VTARGET Mounted
AREF Open
RESET Mounted
XTAL1 Mounted
OSCSEL Mounted, pin 1 and 2
BSEL2 Mounted
PJUMP Open
STK521
POWER VTG
CLOCK STK500
RESET RST/