I am doing data acquisition using the ADC in the MAX 10. I am trying to us the oscilloscope function of the System Console to monitor the ADC inputs.
When I am using it without the NIOS it works fine. When I install the NIOS Processor and call System Console from Eclipse it will work occasionally but usually I get the following error messages:
master_write_32: java.lang.NullPointerException
while executing
"master_write_32 $sequencer_service 0x0 1
"
(procedure "::adc_toolkit::trigger_sample_trace" line 39)
invoked from within
"::adc_toolkit::trigger_sample_trace $channel_number $sample_size"
(procedure "::adc_toolkit::trigger_sample" line 3)
invoked from within
"::adc_toolkit::trigger_sample $channel_number $sample_size
"
(procedure "::adc_toolkit::scope_test" line 28)
invoked from within
"::adc_toolkit::scope_test"
("uplevel" body line 1)
invoked from within
"uplevel 1 $command_string
"
(procedure "::adc_toolkit::debug_timer_run" line 7)
invoked from within
"::adc_toolkit::debug_timer_run ::adc_toolkit::scope_test {scope test}"
("after" script)
Any idea why it sometimes works and sometimes fails?
I am using Quartus Version 15
