Hello, I work with mpc5777m and i have a problem with SARADC_B.
I have to convert test channels 24 and 25 and have initialized the ADC in this way:
SARADC_B.MCR.R = 0x80000000; // enable result overwriting in scan mode
SARADC_B.CTR [1] .R = 0x800000FF; // setup conversion time, 12bit max value
SARADC_B.TCNCMR.R = 0x03000000; // enable channels 121 (Vbdg), 120 (TSENS0) to be sampled SARADC_B.TCDR [24] .R = 0x01000000; // select CTR1 for channel 120 conversion
SARADC_B.TCDR [25] .R = 0x01000000; // select CTR1 for channel 121 conversion
then i set bit start:
SARADC_B.MCR.B.NSTART = 1; / * Trigger normal conversions for test channels * /
and I wait the data to be valid
while (SARADC_B.TCDR [25] .B.VALID! = 1) {};
the problem is that conversion does not start, as I can see from the MSR register. the ADC has remained in power-down and never goes into idle or other states
I have never set other clocks. 16mhz work with the Internal 16 MHz RC oscillator.
How can I fix the problem?
