= HF8V = / = SP8WJT = / = SP0106RZ =
HF-17909
PROJECT: HF-17909
DESCRIPTION: Air conditioner control board
TYPE: KFR70GW SHL-LXD-24SV
BRAND: LUXDA
STATUS: n
PROJECT START DATE: 2024
LOCALISATION: DD
DOCUMENTATION:
PCB: TPD57909
DIMENSIONS:
CPU CATALOG NUMBER: UC-633
CPU: MC68HC908JL8
CPU BRAND: MOTOROLA
FAMILY: HC08
FLASH: 8 KB
RAM: 256
MAX CLOCK: 8 MHz
THN ADDRESS: 0x71
TYPE: 0x34
Project Info
Air conditioner control board. In this uC some kind of protection preventing further programming can be used, no tested yet as I don't have MOTOROLA programmer.
MOTOROLA FLASH protection bits
Programming interface for this uC is rather simple but I wasn't interested in MOTOROLA chips previously, from years it is in not realized plans.
It was rather common for manufactures to set protection bits. But it seems that some unblocking procedure is also possible:
MOTOROLA unblocking
Totally I have 4 modules with MC68HC908JL8, MC68HC908JK chips for experimets:
| UC-### |
MICROPROCESSOR NAME |
BRAND NAME |
FAMILY
(SUBFAMILY, CORE) |
DISPOSITION |
REMARKS |
THN ADR |
TYPE |
| UC-223 |
MC68HC908JL8 |
MOTOROLA |
HC08 |
HF-1759 |
FLA8K, RAM256, 8MHz, PP |
0x7C |
0x34 |
| UC-224 |
MC68HC908JL8 |
MOTOROLA |
HC08 |
HF-1762 |
FLA8K, RAM256, 8MHz, PP |
0x7D |
0x34 |
| UC-633 |
MC68HC908JL8 |
MOTOROLA |
HC08 |
HF-17909 |
FLA8K, RAM256, 8MHz, PP |
0x7E |
0x34 |
| UC-742 |
MC68HC908JK |
MOTOROLA |
HC08 |
HF-1758 |
FLA8K, RAM256, 8MHz, PP |
0x71 |
0x34 |
and also similiar MC68HC908DB48, XC68HC908BD48, XC68HC908BL48 chips.
Sources:
[1] MC68HC908JL8 datasheet
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