Readme
Example Summary
The example is created to demo a self-calibratable, high precision and low-cost current detection solution based on MSPM0 internal OPAs. This solution supports bi-directional current detection, which is mostly suitable for BMS solutions. It can self-calibrate the voltage offset and GAIN setting of OPAs and do dynamic GAIN setting to reach high accuracy across low to high current.
Peripherals & Pin Assignments
| Peripheral | Pin | Function |
|---|---|---|
| UART1 | PA0 | TX for data transmission |
| UART1 | PA1 | RX for data receiving |
| ADC0 | PA21 | ADC12 Channel 5 Pin for temperature detection |
| ADC0 | PA26 | ADC12 Channel 1 Pin for battery voltage detection |
| ADC0 | PA18 | ADC12 Channel 7 Pin |
| OPA0 | PA22 | OPA0 output as the bias voltage |
| OPA1 | PA17 | OPA1 IN0- input |
| OPA1 | PA18 | OPA1 IN+ input |
| DEBUGSS | PA20 | Debug Clock |
| DEBUGSS | PA19 | Debug Data In Out |
BoosterPacks, Board Resources & Jumper Settings
- Please refer to the related app note for more hardware details.
Example Usage
This example was developed and tested based on MSPM0L1306. Please refer to the related app note for more details.