Greg
@gregdavill.bsky.social
ASIC/FPGA/PCB/FW engineer at ASTC 🧙♂️ (He/Him)
I also take macro photos of electronics
I also take macro photos of electronics
Board manufacturer date of wk10 2024. Wild that this issue is still making it into designs.
September 28, 2025 at 11:08 PM
Board manufacturer date of wk10 2024. Wild that this issue is still making it into designs.
Did you have the same reaction? 🤣
a man in a yellow shirt is sitting in a chair holding a cup and pointing
ALT: a man in a yellow shirt is sitting in a chair holding a cup and pointing
media.tenor.com
September 26, 2025 at 6:16 AM
Did you have the same reaction? 🤣
If by fab house, you mean my a toaster oven in my fabulous houses garage? Then yes. 🙌
September 1, 2025 at 10:41 PM
If by fab house, you mean my a toaster oven in my fabulous houses garage? Then yes. 🙌
Small update to PCB and I forgot to buy a new stencil 😅
September 1, 2025 at 10:09 PM
Small update to PCB and I forgot to buy a new stencil 😅
When I started using brand name AMTECH flux. I realised it had a “sweet” smell, then immediately bought a fume extractor, because I realised if I was smelling that I was 100% inhaling the rosin and additive vapours 💨😵💫
September 1, 2025 at 1:46 AM
When I started using brand name AMTECH flux. I realised it had a “sweet” smell, then immediately bought a fume extractor, because I realised if I was smelling that I was 100% inhaling the rosin and additive vapours 💨😵💫
The bodge works!
A DFF in front of the ECP5's FPGA SPI configuration port before a mix leading to FLASH and PSRAM. Enabling an initial jump through FLASH where the clock frequency is bumped and QSPI entered.
This now fixes an issue violating the PSRAM's tCE<8us requirement.
A DFF in front of the ECP5's FPGA SPI configuration port before a mix leading to FLASH and PSRAM. Enabling an initial jump through FLASH where the clock frequency is bumped and QSPI entered.
This now fixes an issue violating the PSRAM's tCE<8us requirement.
August 17, 2025 at 10:41 AM
The bodge works!
A DFF in front of the ECP5's FPGA SPI configuration port before a mix leading to FLASH and PSRAM. Enabling an initial jump through FLASH where the clock frequency is bumped and QSPI entered.
This now fixes an issue violating the PSRAM's tCE<8us requirement.
A DFF in front of the ECP5's FPGA SPI configuration port before a mix leading to FLASH and PSRAM. Enabling an initial jump through FLASH where the clock frequency is bumped and QSPI entered.
This now fixes an issue violating the PSRAM's tCE<8us requirement.
I’ve noticed looking at some modern SMD 32k quartz crystals may have what look like laser trim dots on the forks. Could that be one reason to manufacture these with a glass top rather than metal?
August 17, 2025 at 4:39 AM
I’ve noticed looking at some modern SMD 32k quartz crystals may have what look like laser trim dots on the forks. Could that be one reason to manufacture these with a glass top rather than metal?
Nicely done! Looks similar to the XPS I did the same mod to. Resistor straps to inform BIOS of larger DRAM parts. Luckily I got a board-view which shower the net names. Made it easy to work out the 16GB variant.
August 15, 2025 at 5:01 AM
Nicely done! Looks similar to the XPS I did the same mod to. Resistor straps to inform BIOS of larger DRAM parts. Luckily I got a board-view which shower the net names. Made it easy to work out the 16GB variant.
Why is my circuit board lying to me 🥲
August 3, 2025 at 7:57 AM
Why is my circuit board lying to me 🥲
“I’d rather write the hw” much easier 😆😆🤣
July 26, 2025 at 2:24 AM
“I’d rather write the hw” much easier 😆😆🤣
Impedance control is a myth. A term made by big circuit to sell more ground planes. /s
June 27, 2025 at 11:26 PM
Impedance control is a myth. A term made by big circuit to sell more ground planes. /s
Smoke test passed! 🔥
Voltages all look good
Voltages all look good
June 24, 2025 at 7:08 AM
Smoke test passed! 🔥
Voltages all look good
Voltages all look good
😍 Freshly assembled, still not sure if the design even works 🫣
June 24, 2025 at 3:45 AM
😍 Freshly assembled, still not sure if the design even works 🫣
A nice solder paste application 🫠
June 12, 2025 at 9:13 AM
A nice solder paste application 🫠
Circuit boards are in! 👌
June 12, 2025 at 1:42 AM
Circuit boards are in! 👌
Designed a quick and simple 3d printed case
June 2, 2025 at 10:40 PM
Designed a quick and simple 3d printed case
Unfortunately not, this is actually an old ButterStick r0.2
May 31, 2025 at 1:59 AM
Unfortunately not, this is actually an old ButterStick r0.2