ESP32 16MB flash module identification on cover

[MarekBujko]

Hello,
I noticed that newer ESP32-WROVER-B/IB or ESP32-WROOM-32D modules with 16MB flash have XX0H28 on cover. From "Product Ordering Information" I found that ESP32 with 16MB flash has H28 code in "Manufacturer Part Number". Is that right?

[ullixesp]

Looks like you have already identified it?

I just received my order for "ESPRESSIF ESP32-WROOM-32E" with flash of 4, 8, 16 MB flash, and the covers have the imprint of:
XX0H32
XX0H64
XX0H28
respectively.

I haven't tested yet but the imprint at least looks like the flash in MBit with the "1" of "128" dropped.

[ullixesp]

I can now confirm that the chips are 'revision 3' and are indeed 4, 8, 16 MB.

The tests were done with the attached CHIPTEST script. It runs with auto-partitioning under UECIDE https://uecide.org/ When used under Arduino IDE you need to set the partitions manually.

This is part of the outcome for the 16 MB chip:

Code: Select all

       partition addr: 0x290000; size: 0xd70000; label: ffat
       FFat File system mounted
       Total space:   13938688
       Free space:    13938688

       FlashChipSize:  16777216    (0x1000000)
       ChipRevision:   3

14 MB free space on FFat

[kevinx]

Hello, where I can get the CHIPTEST script?

[ullixesp]

here: