How can I use named RAM arrays in the Simulink 1-D Interpolation block?

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I am working on a automotive control project. I need to change our system control code so that a supplier can modify a calibration table via CAN messages using a rapid prototype system and then have the system use that data for some control functions. This means that the "table" will be in RAM instead of ROM as normal. I can get the "external" data into two RAM arrays (one array for the breakpoints and one array for the table data) but I can't figure out how to specify those RAM arrays in the 1-D Interpolation block. I tried using the names of the RAM arrays in the block fields but am getting an error message saying the variables are not defined when I try to simulate it. Do I need to "declare" the arrays in the model workspace? Currently, I am just "naming" the signal lines in the part of the code that takes the CAN signal value and stores it to the array elements -- that method normally creates our global RAM variables when we generate the autocode. Thanks!

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Fangjun Jiang
Fangjun Jiang 2022 年 8 月 11 日
  1 件のコメント
Glen Tallarek
Glen Tallarek 2022 年 8 月 11 日
Thank you very much for your reply and suggestion. I will take a look at this and give it a try. It looks like it is exactly what I am looking for!

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