Altera USB Blaster III LEDs usage

[AnttiLukats]

Hi,

I would like to know how is the RGB LED on Altera USB Blaster III used? What is the meaning of the LED colors!

Thanks!

[Fakhrul]

Hi AnttiLukats,

Just to share some information I received from the marketing team:

The USB Blaster III will have the same functionality as the on-board USB Blaster II but with a simpler design (no MAX or Cypress devices required — it will use FTDI). The USB Blaster III cable will be backward compatible with other Blaster cables (USB Blaster I, USB Blaster II, Ethernet Blaster). However, the USB Blaster III cable is expected to be available in 2026, as we plan to wait until the inventory of USB Blaster I and/or USB Blaster II cables is depleted.

Do you have any further questions or concerns regarding this? If there’s anything else, please feel free to let me know so I can assist further.

Otherwise, I’ll transition this thread to community support. Should you have new questions, feel free to open a new thread for assistance from Intel experts. The community members will also continue to support you here.

Thank you for your engagement!

Best regards,

Fakhrul

[AnttiLukats]

well my question was not when is USB Blaster III be available, I wanted and still want to know what is the meaning of the RGB LED colors in on-board USB Blaster III. Can you answer this question please!

[Fakhrul · Accepted solution]

Hi AnttiLukats,

Thank you for your patience, and I sincerely apologize for not addressing your question directly in my earlier reply.

Regarding your inquiry about the meaning of the RGB LED colors on the on-board USB Blaster III, please find the detailed information below:

• Off: No power / not connected / suspend mode
• Blue: Connected, not in use
• Green: Connected, an application is using JTAG, no traffic
• Green flickering: Connected, data is moving through the JTAG interface
• Purple flashing: Identify function has been triggered on this cable

If you have further questions or need additional clarification, please don’t hesitate to reach out. I'm here to help and will ensure your concerns are addressed promptly.

Thank you again for bringing this up, and I appreciate your understanding.

Best regards,

Fakhrul

[AnttiLukats]

Thank you, case closed!

[Fakhrul]

I’m glad that your question has been addressed, I now transition this thread to community support. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.