Hello,
We are working on a new development project based on MPC5604P MCU. We are using TRK-MPC5604P Evaluation board developed by P&E Microcomputer Systems. I'm trying to run the example code provided in Freescale Application Note AN2865: (Section 22 ADC: Software Trigger, Continuous Scan) to experiment with the ADC functions. It is already the third day that I'm trying however, no matter what I did the ADC refuses to run. The conversion starts but never completes. I was wondering whether anybody had already used that example code given in the AN2865 and can help me finding what is wrong.
Thank you in advance.
simbasoft
Here are the values of ADC0MCR and the ADC0MSR registers.
===============================================
ADC0MCR = 0x21000000
Bit Field Values:
OWREN bits[ 31:31 ] = 0 Discarded
WLSIDE bits[ 30:30 ] = 0 Right-aligned
MODE bits[ 29:29 ] = 1 Scan Mode
EDGLEV bits[ 28:28 ] = 0 Ext. trigger on edge
TRGEN bits[ 27:27 ] = 0 Disabled
EDGE bits[ 26:26 ] = 0 Low level/Falling edge
XSTRTEN bits[ 25:25 ] = 0 Disabled
NSTART bits[ 24:24 ] = 1 Starts chain or scan conv
Not Implemented bits[ 23:23 ] = 0
JTRGEN bits[ 22:22 ] = 0 Disabled
JEDGE bits[ 21:21 ] = 0 Falling edge
JSTART bits[ 20:20 ] = 0 No effect
Not Implemented bits[ 19:18 ] = 0
CTUEN bits[ 17:17 ] = 0 Disabled
Not Implemented bits[ 16:9 ] = 0
ADCLKSEL bits[ 8:8 ] = 0 clkfreq=ipgclk freq/2
ABORTCHAIN bits[ 7:7 ] = 0 Does not abort
ABORT bits[ 6:6 ] = 0 Does not abort
ACKO bits[ 5:5 ] = 0 Disabled
Not Implemented bits[ 4:1 ] = 0
PWDN bits[ 0:0 ] = 0 Normal operation
===============================================
ADC0MSR = 0x1000804
Bit Field Values:
Not Implemented bits[ 31:25 ] = 0
NSTART bits[ 24:24 ] = 1 Conv. occurring
JABORT bits[ 23:23 ] = 0 New injected conv. started
Not Implemented bits[ 22:21 ] = 0
JSTART bits[ 20:20 ] = 0 Inj. conv. not occurring
Not Implemented bits[ 19:17 ] = 0
CTUSTART bits[ 16:16 ] = 0 CTU conv. not occurring
CHADDR bits[ 15:9 ] = 4
Not Implemented bits[ 8:6 ] = 0
ACKO bits[ 5:5 ] = 0 Disabled
Not Implemented bits[ 4:3 ] = 0
ADCSTATUS bits[ 2:0 ] = 4 Sample
