Tag Flasher

You can use the following flasher-scripts to program various types of tags with the Tag-Flasher or AP-Flasher. The Tag-Flasher is the easiest to build; it uses only a Wemos S2-Mini or clone to program quite a few different tags. The tags below are the tags that can be programmed with this flasher.

ZBS243-based tags
nRF52-based tags
88MZ100-based tags

This is the schematic for the flasher, including a pinout for the debug-header that is used by quite a few Solum tags. This flasher is also compatible with the OEPL-AP-Flasher jig/programming boards.

This is what it looks like with the wires connected. I've chosen to use 0.635mm pitch wires, to be able to use the jigs with the 1.27mm FDC connectors. After soldering, you can add a little bit of hot-glue to make sure they stay attached.

Tag - Flasher connections

R - required
O - optional

Flasher Pin	Cable Pin	ESP32-S2 Pin	ZBS	nRF	88mz100
VCC	1	16, 17, 18, 21	R	R	R
CS	2	34	R
GND	3	GND	R	R	R
CLK	4	33	R	R
TXD	5	36	O	O	R
MISO	6	35	R	R
TEST	7	38
MOSI	8	37	R
RXD	9	40	O	O	R
RSET	10	39	R		O

Not all connections are required by all tags! If you want to solder fewer wires, skip the optional and unused ones.

Flashing the flasher

Clone the Tag_Flasher repo and open into PlatformIO. Choose the correct COM-port and hit 'Upload'.

OEPL-Flasher.py

This script connects to the S2-mini's serial port and enables flashing to ZBS243 and nRF52811-based tags.

usage: OEPL-Flasher.py [-h] [-p PORT] [-f] [-i] [-n] [-z] [--internalap] [-e] [--altradio] [--pt] {read,write,autoflash,debug} [filename]

OpenEPaperLink Flasher for AP/Flasher board

positional arguments:
  {read,write,autoflash,debug}
                        Command to execute
  filename              Filename for read/write commands

options:
  -h, --help            show this help message and exit
  -p PORT, --port PORT  COM port to use
  -f, --flash           Write to the flash
  -i, --infopage        Write to the infopage/UICR
  -n, --nrf82511        nRF82511 programming
  -z, --zbs243          ZBS243 programming
  --internalap          Selects the internal accesspoint port
  -e, --external        Selects the external(side) port
  --altradio            Selects the alternate radio port
  --pt, --passthrough   Enters serial passthrough for debug output after flashing

88MZ100-OEPL/Serial-Flasher.py

This script connects through a serial-TTL interface or OEPL - Tag_Flasher or AP-Flasher.

Example: COM1 read file.bin, or COM1 write file.bin, or COM1 write_flash file.bin
To create an OTA file use: img file.bin

Solum ZBS243-based

Use with the -z option for ZBS243. Autoflash is currently not implemented on the Tag_Flasher/S2 version.

python3 OEPL-Flasher.py -e -z -p COM31 read blaat.bin --flash --pt

Nordic nRF-based

Use with the -n option for nRF52811

python3 OEPL-Flasher.py -e -n -p COM31 read blaat.bin --flash --pt

Marvell 88MZ100-based

Main article here.

The Tag-Flasher is used in serial passthrough-mode in order to flash the 88MZ100 with a modified flasher-script. A serial DTR/Reset line is used to reset the tag during the connection stage; this is however not strictly necessary! If you connect or reset the tag when prompted by the script, the flasher will work fine.

python3 .\88MZ100-OEPL-Flasher.py COM31 write_flash '0130c8144117.bin'

Credits

Much code was reused from ATC1441's various flashers

4.1 KiB Raw Permalink Blame History