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RTLPlayground/doc/devices/SWTGW218AS.md
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Andre Brait 1d5e4cd722 doc: identify the Horaco SWTG118AS-V2.1 CPU and flash capacity
Read register 0x0004 on all three tested HC-SWTGW218AS units. Each returned 0x83730000, identifying RTL8373 rather than RTL8373N. Firmware reports 2 MB flash on all three.

Fill in the verified device-table fields and document the non-N/N register distinction. Leave PHY and flash-chip models explicitly unverified.
2026-10-19 22:09:42 +02:00

1.2 KiB

ZX-SWTGW218AS

Brands

Brand Type Managed PCB Flash Chip RTL
Mokerlink ZX-SWTGW218AS Yes SWTG118AS-V2.0-16029 2MB (FM25Q16A) 8273N + 8224N
Sodola
Horaco HC-SWTGW218AS Yes SWTG118AS-V2.1 2MB 8373 (non-N)
XikeStor SKS3200-8E1X Yes SWTG118AS-V2.1-17462 2MB (25Q16JVSIQ)

All boards in this table use MACHINE=SWTGW218AS. The Horaco HC-SWTGW218AS is also sold with the SWTG018AS-A V2.0 board, which needs a different firmware. Check the marking on the PCB before flashing.

On all three tested Horaco HC-SWTGW218AS units with PCB SWTG118AS-V2.1, regget 4 returned REGGET: 0x0004: VAL: 0x83730000, identifying the CPU as RTL8373 (non-N). An RTL8373N returns 0x83737000 instead. The PHY and flash-chip models on these units have not been verified.

Photos

PCB

See up'n'atom's Repo:

https://github.com/up-n-atom/SWTG118AS/blob/main/photos/SWTG118AS-v2.0/SWTG118AS-v2.0-pcb-top.JPG

https://github.com/up-n-atom/SWTG118AS/blob/main/photos/SWTG118AS-v2.0/SWTG118AS-v2.0-pcb-bottom.JPG