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Revision 11/16
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Redmine Admin, 14.12.2021 17:54
HW-Data¶
Each Board (with MCU) should have an I2C EEPROM containung some "production" information.
| Offset | Type |
|---|---|
| 0x00 | Production-Data |
| 0x20 | Board-Config |
| 0x40 | Config 1 |
| 0x60 | Config 2 |
If EEPROM is not available, an sector in internal flash can be used.
The area within the flash should be handled by the "retain"-class from libbiwak. It
already handles header version and CRC.
"Magic"s do not make much sense. Its not supposed to be human readable.
| Section | Offset | Type | Size | Decription | Example | Retain Version | Comment |
|---|---|---|---|---|---|---|---|
| Board | 0x00 | ui16 | 2 | Articles Code | 0x0020 | 4.0. | Can be printed on PCB, so no variant |
| 0x02 | ui16 | 2 | Board Code | 01 | 4.0. | Main is always main | |
| 0x04 | ui8 | 1 | major version | 0 | 4.0. | ||
| 0x05 | ui8 | 1 | minor version | 4 | 4.0. | ||
| 0x06 | ui8 | 1 | patch version; assembly patches 1) | 0 | 4.0. | 0='X' | |
| 0x07 | ui8 | 1 | Board Variant | 0 | 4.0. | Valid Solder options; | |
| Production | 0x08 | ui32 | 4 | Serial number | 0001 | 4.0. | |
| 0x0C | ui8 | 1 | Production year (+2000) | 21 | 4.0. | ||
| 0x0D | ui8 | 1 | Production month | 10 | 4.0. | ||
| 0x0E | ui8 | 1 | Production day | 21 | 4.0. | ||
| 0x0F | ui8 | 1 | Production site | 3 | 4.0. | ||
| Main | 0x10 | ui16 | 1 | Articles Variant | 0x0020 | 4.0. | MM Crona, No-Can |
| 0x12 | ui8 | 1 | Articles Version | 01 | 4.0. | Does not make much sense; New version new article code | |
| 0x14 | ui8 | 4 | reserved | 01 | 4.0. | ||
| 0x18 | Struct | 8 | Retain information; Version, counter, CRC | {-} | 4.0. |
1) although circuit might be changed afterwards, assembly option at time of production
is relevant. To compare with errata-page.
THe soldered parts shout match the one taged with this patch level in git.
2) Things that might be relevant for running software like used transceivers. Product specific.
Its only related to the board directly, not connected periphery.
Things like production site, version of horo-firmware etc. can be stored off-device.
Von Redmine Admin vor etwa 3 Jahren aktualisiert · 11 Revisionen