ATSTK526 Atmel, ATSTK526 Datasheet - Page 27

• Manufacturer Part Number: ATSTK526
• Description: KIT STARTER FOR AT90USB82/162
• Manufacturer: Atmel
• Series: AVR®r
• Type: MCUr

Specifications of ATSTK526

• Contents: Starter Kit Board, Power Supply, Cable and Software
• Processor To Be Evaluated: AT90USB82/162
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Silicon Core Number: AT90USB82, AT90USB162
• Kit Contents: Board Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT90USB162, AT90USB82
• For Use With: ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STK526 rev. B Hardware User Guide
Figure 3-1 . Troubleshooting Guide
The Green “Power-ON”
LED is not on
STK526 does not work
The AT90USB82/162
cannot be programmed
AVR Studio does not
detect the AVR tool used
Problem
No power supply
STK500
Configuration not
respected.
The AVR ISP probe is
not connected
The AVR JTAG ICE
probe is not
connected
The memory lock bits
are programmed
The fuse bits are
wrongly programmed
Programming too fast
with ISP SPI
RS232/USB cable is
not connected, or
power is off
PC COM port is in
use
AVR Studio does not
detect COM port.
Troubleshooting Guide
Reason
Verify the power supply source level
Verify the power supply source selector
Connect the DC power supply source, or
USB interface or STK500.
Connect ISP cable between STK500 and
STK526. Check Parallel Programming
hardware configuration on both STK500
and STK526.
Connect the AVR ISP 6-PIN header to
the correct STK526 ISP header (page
19). Take care of polarity.
Connect the JTAG ICE 10-PIN header to
the correct STK526 JTAG header (page
19). Take care of polarity.
Erase the memory before programming
Check the fuse bits (SPIEN, DWEN if
previous operation was debugging).
Check oscillator settings and make sure
it is not set higher than SPI clock
Connect the RS232 cable (STK500 -
AVR ISP) and check power connections
Connect the USB (JTAG ICE MKII, AVR
ISPmkIIl) and check power connections
Disable other programs that are using
PC COM port.
Change PC COM port
Disable COM port auto-detection in AVR
Studio file menu. Force COM port to the
correct COM port
Solution
Section 3
7709B–AVR–07/08
3-26