Tool/software: Code Composer Studio
Hello !
Currently, we are considering using ucd3138RGC to create a product using PSFB source code.
(code URL : http://www.tij.co.jp/tool/jp/ucd3138fw-psfb)
The products we want to create are intended to protect only the output voltage and output current.
There are the following nine AD values acquired by poll_adc ().
adc_values.vo_sense = AdcRegs.ADCAVGRESULT[3].bit.RESULT;
adc_values.io_sense = AdcRegs.ADCAVGRESULT[1].bit.RESULT;
adc_values.ishare = AdcRegs.ADCAVGRESULT[0].bit.RESULT;
adc_values.vin_mon = AdcRegs.ADCAVGRESULT[4].bit.RESULT;
adc_values.temp = AdcRegs.ADCAVGRESULT[5].bit.RESULT;
adc_values.ips = AdcRegs.ADCRESULT[7].bit.RESULT;
adc_values.device_temp = AdcRegs.ADCRESULT[8].bit.RESULT;
io_sense = AdcRegs.ADCRESULT[1].bit.RESULT; //352 if offset by R104, 95.6/A
ishare = AdcRegs.ADCRESULT[0].bit.RESULT;
The following five AD values will be unused to speed up the process:
In the IC external circuit, ground these AD pins to GND.
In the source code, do not set acquisition of these AD values.
adc_values.ishare = AdcRegs.ADCAVGRESULT[0].bit.RESULT;
adc_values.vin_mon = AdcRegs.ADCAVGRESULT[4].bit.RESULT;
adc_values.temp = AdcRegs.ADCAVGRESULT[5].bit.RESULT;
adc_values.ips = AdcRegs.ADCRESULT[7].bit.RESULT;
ishare = AdcRegs.ADCRESULT[0].bit.RESULT;
If the following 4 variables in system_defines.h are changed as follows, I think about no fault occurs in the IRQ.
VIN_SUFFICIENT (1)
VIN_NOT_SUFFICIENT (0)
VIN_UV_FAULT (0)
VIN_OV_FAULT (0)
Do you think PSFB control problems occur?
