Well, I’m back on the wagon again. GQ-4X in hand, with a spare MiniPro TL866CS, K150 and Wellon VP-390. Overkill? Very much so. The GQ-4X had become so familiar that I couldn’t live without one anymore. Dammit!

I also finally gave my Willem-to-TSOP adapter a proper try. Some flash chips sold or marked as AMD AM29F032B identified in my setup as ST M29F032D devices instead. The screenshot records 20AC, consistent with the M29F032D electronic signature. That strongly suggests they had been remarked, although I cannot reconstruct the complete provenance of those chips now.

Fortunately, both AM29F032B and M29F032D TSOP40 devices are supported by the GQ-4X v4 / GQ-4x4 with the appropriate adapter, and both worked for the SNES flash-cart project I was building.

This should let me finally continue part two of the SNES flash-chip programming project. I nearly forgot about it among all these TeraDrives!

My original GQ-4X had also developed communication problems, hanging or failing during initialisation. Hopefully this replacement lasts longer. Fingers crossed! :)

Sources

• GQ Electronics - Supported Device List
• STMicroelectronics - M29F032D Data Sheet (mirror)