= HF8V = / = SP8WJT = / = SP0106RZ =
HF-17256
PROJECT: HF-17256
DESCRIPTION: UCR61SB Card Reader
BRAND: ECS
STATUS: f?
PROJECT START DATE:
LOCALISATION: PG
DOCUMENTATION: nil
PCB: TPD57256
DIMENSIONS: 86 x 84 mm
UC parameters
UC NAME: ND3052
CPU BRAND: NEODIO
FAMILY: '51 CORE
EXT ROM: 64K
RAM: 512 ?
MAX CLOCK: 12 MHz
SUPPLY VOLTAGE: 3.3V
CASE: LQFP128
CPU CATALOG NUMBER: UC-297
THN ADDRESS: 0x2E
UC TYPE: 0x52
It seems hardware works OK in this module, but something wrong is with software... USB works OK but hanging during reading drives. This software incompability can be repaired by changing 0 ohm resistors on PCB, what is described in the internet.
But I rather plan to modify this system towards universal digital system by reverse engeneering of original software... Documentation [1] is not adequate (and for similiar model ND3060), what is typical with many of Taiwan-made devices. But reverse engeneering of 8051 code is not very complicated, some additional hardware registers are between basic 8051 registers in the rather small range 0x80-0xFF.
Sources:
[1] ND3060
Prefix 17
HF Register
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