How to trim the iDAC gain in the PSOC5LP?

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josc_1234441
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According to this article, High Resolution DAC in PSoC 3/5 , the DACx_TR register can be used for trimming the iDAC. How does trimming actually work? I can not find any documentation about trimming the gain of the iDAC.

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Try

CY_SET_REG8(IDAC1_LSD_TR_REG, trim_val)

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