Raptor:Calc Checksum Block: Difference between revisions
Jump to navigation
Jump to search
(Created page) |
No edit summary |
||
| Line 3: | Line 3: | ||
[[Raptor:CAN|Return to CAN page]] | [[Raptor:CAN|Return to CAN page]] | ||
[[ | [[file:raptor_read_checksum.JPG|frameless|border|Read Checksum block|center]] | ||
== Description == | == Description == | ||
Revision as of 12:33, 1 September 2016
Return to the main Raptor page
Description
This block is used to calculate the checksum of memory segments in the controller. These checksums can be used to validate that the the data stored in a memory segment has not changed. The block uses the CRC16-CCITT method to calculate the checksum. Due to the computationally intense nature of this algorithm the checksum is calculated incrementally over multiple executions of this block. This means that the Calculate Checksum block must be in a regularly triggered subsystem. The value of the checksum can be read using the Read Checksum block.
The available memory segments are detailed below.
Memory Segments
| Segment | Description |
|---|---|
| Constant (FLASH) Variables | This memory segment includes all data in the Constant location including calibrations if set to Constant. |
| NonVolatile (EEPROM) Variables | This memory segment includes all data in the NonVolatile location including calibrations is set to NonVolatile. |
| Calibration Variables | This memory segment includes all data in the Calibration location. This does not include all items in the memory location that the calibration is stored in. |
| Code | This memory segment includes all the generated code for the model. |