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tuc
USA
13 Posts |
 Posted - 04/30/2026 : 16:52:45
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Hi,
Trying to program an ATMEGA328P. I understand that this can be done with my GQ-4x4 by using an AVRISP. The problem is that my chips aren't in a device that can be programmed via ISP. What do I need to get to be able to program it? Everything I find is the programmer side, not the other side of the cable. Specific product names appreciated. |
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| Reply #1
anniel
2626 Posts |
Posted - 05/01/2026 : 10:35:12
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quote:
Originally posted by tuc
Hi,
Trying to program an ATMEGA328P. I understand that this can be done with my GQ-4x4 by using an AVRISP. The problem is that my chips aren't in a device that can be programmed via ISP. What do I need to get to be able to program it? Everything I find is the programmer side, not the other side of the cable. Specific product names appreciated.
Only power is required. |
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| Reply #2
tuc
USA
13 Posts |
Posted - 05/01/2026 : 15:30:15
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quote:
Originally posted by anniel
Only power is required.
Why does everything I see talk about clock sources and things like that? |
Edited by - tuc on 05/01/2026 15:59:35 |
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| Reply #3
anniel
2626 Posts |
Posted - 05/02/2026 : 05:35:36
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quote:
Originally posted by tuc
quote:
Originally posted by anniel
Only power is required.
Why does everything I see talk about clock sources and things like that?
Your PCB already provide the clock signal, you only need to power it and connect the five wires from the GQ-4X to the chip. |
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| Reply #4
tuc
USA
13 Posts |
Posted - 05/03/2026 : 14:29:32
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quote:
Originally posted by anniel
Your PCB already provide the clock signal, you only need to power it and connect the five wires from the GQ-4X to the chip.
That's the thing, I don't have a PCB, as mentioned "The problem is that my chips aren't in a device that can be programmed via ISP. ". So I have only the GQ-4x4 and a chip. |
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| Reply #5
anniel
2626 Posts |
Posted - 05/04/2026 : 07:37:31
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quote:
Originally posted by tuc
quote:
Originally posted by anniel
Your PCB already provide the clock signal, you only need to power it and connect the five wires from the GQ-4X to the chip.
That's the thing, I don't have a PCB, as mentioned "The problem is that my chips aren't in a device that can be programmed via ISP. ". So I have only the GQ-4x4 and a chip.
You need a PCB or a breadboard. |
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| Reply #6
tuc
USA
13 Posts |
Posted - 05/04/2026 : 17:52:42
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quote:
Originally posted by anniel
You need a PCB or a breadboard.
The PCB that this goes into doesn't have any programming points. That's why I'm trying to find out what I need to buy/breadboard. Is there a schematic or item I can refer to? |
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| Reply #7
anniel
2626 Posts |
Posted - 05/05/2026 : 08:13:28
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quote:
Originally posted by tuc
quote:
Originally posted by anniel
You need a PCB or a breadboard.
The PCB that this goes into doesn't have any programming points. That's why I'm trying to find out what I need to buy/breadboard. Is there a schematic or item I can refer to?
Put your chip on the PCB and simply use an IC clip. |
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| Reply #8
tuc
USA
13 Posts |
Posted - 05/05/2026 : 14:48:38
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quote:
Originally posted by anniel
quote:
Originally posted by tuc
quote:
Originally posted by anniel
You need a PCB or a breadboard.
The PCB that this goes into doesn't have any programming points. That's why I'm trying to find out what I need to buy/breadboard. Is there a schematic or item I can refer to?
Put your chip on the PCB and simply use an IC clip.
Great, and what do I connect the other end of the IC clip to, and how? |
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| Reply #9
Jonh
USA
1 Posts |
Posted - 05/05/2026 : 23:42:43
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This thread captures a very typical hardware#8209;hacker situation: someone has bare ATmega328P chips, a GQ#8209;4x4 programmer with AVRISP, but no PCB that exposes ISP pads. They first assume extra clock hardware is needed, then slowly realize the real issue is just how to physically connect the programmer to the chip. The experienced user explains that if a board already provides clock and power, you only need power plus the ISP lines; but with a loose chip you must create that environment yourself. That can be done by putting the ATmega into its target PCB and grabbing the pins with an IC clip, or by wiring it on a breadboard with power, clock, and ISP pins broken out.
In a way, this is similar to planning a complex move: you might have the “tool” (a programmer or a moving truck), but without the right connectors and support structure, it’s hard to get from point A to point B. Professional movers such as https://quickmovehawaii.com/ specialize in handling all those practical details so that people can focus on their real goals instead of getting stuck on logistics.
When you read this exchange, what part is still unclear to you: the electrical connections (which pins go where) or the physical tools you’d need, like breadboards and clips? |
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Topic |
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Confused about AVR ISP
