Hello Team,
In TRM,
Based on a given ADC raw output, ideal equation for calculating ADC input is,
ADCin = (Vref/4096) * ADCResult .
But in the table provided in the TRM, uses another equation.
as ADCin = (3.3/4224) * ADCResult.
Please check below image.
I have calculated ADC count using, ADCin = (3.3/4224) * ADCResult. formula. please check below table
| Multimeter value in Voltage | Expected ADC Count | ADC Count form SDK software. | Difference in ADC count |
| 2.815 | 3603.2 | 3570 | 33.2 |
| 2.131 | 2727.68 | 2696 | 31.68 |
| 1.889 | 2417.92 | 2392 | 25.92 |
| 1.494 | 1912.32 | 1894 | 18.32 |
| 1.159 | 1483.52 | 1483 | 0.52 |
| 0.101 | 129.28 | 133 | -3.72 |
Could you please confirm?
1. The 4224-value used in this equation and which equation is valid for our use?
2. The difference in count between calculated value and value from software.?
Thanks
Aswathy J G
