ATSTK503 Atmel, ATSTK503 Datasheet - Page 8

• Manufacturer Part Number: ATSTK503
• Description: STARTER KIT AVR EXP MODULE 100P
• Manufacturer: Atmel

Specifications of ATSTK503

• Accessory Type: STK500 Expansion Module
• Processor To Be Evaluated: Atmegaxxxx
• Data Bus Width: 8 bit
• Interface Type: JTAG
• For Use With/related Products: 100-pin megaAVR Devices
• For Use With: ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

guide.
High-Voltage Parallel Programming (HVPP)
HVPP programming is always available. The other programming modes, ISP and
JTAG programming, can be disabled. With HVPP, the other programming modes
can be enabled.
hardware connected to STK500/STK503 that does not tolerate 5V, it must be
disconnected before you HVPP program the AVR.
Figure 4-2: HVPP programming the AVR
To HVPP program the AVR on STK503, follow these steps:
You are now ready to program the device. For more information on how to use
the programming dialog, see the Frontend software section in the STK500 user
guide.
HVPP requires the target voltage to be set to 5V. If you have any external
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Turn off power on STK500.
Disconnect any hardware that does not tolerate 5V.
Connect the PROGCTRL connector to PORTD and PROGDATA to
PORTB on the STK500 as show in the figure below.
Set jumpers and switches according to Table 4-1.
Connect a serial cable to the RS232 CTRL connector on STK500 and
your PC.
Turn on power on STK500.
Start AVR Studio. On the Tools menu, select "Program AVR/ Connect..."
On the Board tab, make sure the VTarget slider shows 5V. If not, adjust it
and press Write Voltages .
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