Refer to the PDF data sheet for device specific package drawings
The ADC_cal() routine is programmed into TI reserved OTP memory by the factory. The boot ROM automatically calls the ADC_cal() routine to initialize the ADCREFSEL and ADCOFFTRIM registers with device specific calibration data. During normal operation, this process occurs automatically and no action is required by the user.
If the boot ROM is bypassed by Code Composer Studio during the development process, then ADCREFSEL and ADCOFFTRIM must be initialized by the application. Methods for calling the ADC_cal() routine from an application are described in the TMS320x2833x, F2823x Analog-to-Digital Converter (ADC) module reference guide.
FAILURE TO INITIALIZE THESE REGISTERS WILL CAUSE THE ADC TO FUNCTION OUT OF SPECIFICATION.
If the system is reset or the ADC module is reset using Bit 14 (RESET) from the ADC Control Register 1, the routine must be repeated.