PSoC5 IDAC8 trim registers

[odissey1]

Hi,

I am trying to calibrate PSoC5 IDAC8 and going through Registes_TRM  documentation.

Q1: What is the function of the PSoC5 IDAC8 trim registers,  FLSHID_CUST_TABLES_DAC0_M1,   ...  _M8 (total 32 registers)  

and what is the meaning of the Modes M1 - M8?

Q2: Is that correct that VDAC8 comes factory-calibrated to produce 1.02V and 4.08V ranges, while IDAC8 is not calibrated to produce 255uA? (I see ~20% overshoot).

[Alakananda_BG · Accepted solution]

Hi @odissey1 ,

We discussed this with our product Engineers and the  meaning of the 8 modes, we theorize that it is test/calibration reference with significance only to test engineering. 

The IDAC is calibrated in the factory to about 2.5%.There may be glitches in the transitions from one value to the next, size depending on start and next code.
When operating in Low power, the glitches are larger and longer than in high power.

Regards,