AVR-ISP500-ISO Olimex Ltd., AVR-ISP500-ISO Datasheet - Page 11

• Manufacturer Part Number: AVR-ISP500-ISO
• Description: Programmers & Debuggers AVR PROGRAMMER 2MB FLASH 1000V
• Manufacturer: Olimex Ltd.

Specifications of AVR-ISP500-ISO

• Positions/sockets: 1
• Description/function: USB AVR Programmer
• Tool Type: Programmer
• Core Architecture: AVR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: AVR Studio
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FIRMWARE UPGRADE:
After programming operation finishes, this pin is again tri-stated in order
not to interfere with the target circuit.
This clock output can be really helpful when target AVR is accidentally
programmed with External Clock FUSE option. To resurrect it just wire
ICSP10 pin 3 to XTAL1 pin of the target AVR chip and initiate a
programming session to fix the FUSE values.
CAVEAT:
Mode” command will not be executed, so the external clock output will stay
active. Due to the AVR-ISP500 hardware implementation, this can cause
target VCC to be incorrectly read as Vtarget=5V.
TIP:
the following steps must be followed. Make sure that programmer contains
a valid log, no matter its contents. Disconnect the programmer, then press
the button, and wait for RED LED to blink for error. After that the clock
output will stay activated.
All AVR-ISP500 devices contain a built-in boot loader for easy firmware
upgrade. Device enters boot loader mode if the application FLASH section is
corrupted. To force the device to enter boot loader mode for manual
firmware update do the following:
1. Disconnect the programmer from any power source (external
2. Press and hold the button.
3. Power up the device by connecting it to USB.
4. Device now must be in boot loader mode, indicated by the LED light
If clock output is needed when target is not being programmed then
AC/DC, USB).
sequence:
If an error occurs in standalone mode, the “Leave Programming