MMP » Historie » Version 1
Maximilian Seesslen, 11.07.2023 14:22
| 1 | 1 | Maximilian Seesslen | h1. Multipacket-Strings |
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| 2 | |||
| 3 | There should be the posssibillity to write the complete SPI-Flash even if it takes forever. |
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| 4 | Not every slave needs to be able to send super big blocks. But every slave should be able to |
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| 5 | send e.g. descriptions. |
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| 6 | There can not be multiple transfers at the same time from one node because there is no identification. |
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| 7 | |||
| 8 | |_. Size |_. Type | |
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| 9 | | 0x4 | Package number (0: Data contains package count) | |
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| 10 | | 0x4 | Data | |
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| 11 | |||
| 12 | h2. Header |
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| 13 | |||
| 14 | |_. Size |_. Type | |
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| 15 | | 0x4 | Total size | |
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| 16 | | 0x4 | Type (1=SDCard) | |
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| 17 | | 0x4 | Target node ID | |
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| 18 | | 0x4 | CRC32 of data | |
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| 19 | |||
| 20 | |||
| 21 | h2. Example: CANRec |
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| 22 | |||
| 23 | PC requests an complete dump from single Node. Node will just stream it out. |
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| 24 | |||
| 25 | |||
| 26 | h1. V2 |
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| 27 | |||
| 28 | |_. Size |_. Decription |_. Examples | |
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| 29 | | 1 | Packet type | Standard TDT packet | |
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| 30 | | 1 | Sub-Id; | Futher index; Sub-Sensor or more specifi kind of thing to be set | |
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| 31 | | 1 | Data type | Int, Float, Time, Date, Percent, Promil, Multipacket-String | |
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| 32 | | 1 | Unit | Hz, °C, Time, Date, PWM, CAN-ID, Name, Description, Room | |
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| 33 | | 4 | Value | 32Bit | |
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| 34 | |||
| 35 | h1. V3 |
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| 36 | |||
| 37 | |_. Size |_. Decription |_. Examples | |
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| 38 | | 2 | Object | | |
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| 39 | | 1 | Sub-Id; | Flags, Subid | |
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| 40 | | 1 | Unit/Type | Hz_int, °C_centi, Time, Date, PWM_milli, CAN-ID, Name, Description, Room | |
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| 41 | | 4 | Value | 32Bit | |
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| 42 | |||
| 43 | h2. Flags |
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| 44 | |||
| 45 | 4 Bit multi message count |
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| 46 | 4 Bit multi message pos |
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| 47 | |||
| 48 | Length in Bytes given via CAN? |
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| 49 | Strings with max. 64 characters. |
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| 50 | |||
| 51 | h2. Multimessage package |
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| 52 | |||
| 53 | There should be the possibillity to write the complete SPI-Flash even if it takes forever. |
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| 54 | Not every slave needs to be able to send super big blocks. But every slave should be able to |
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| 55 | send e.g. descriptions. |