PASA ADC test (30 MHz) (TEST_PASA_ADCS)
  store_all_pasa_adcs reads via SCSN 512 values from ADCs (SCSN offset 0x5800 to 0x5A00) and writes them to given file. (Read via slave 2, ring 0, scsn_config 1)
  Test sequence:
    1. set scsn config 1
    2. send scsn ping (output 2, channel 0)
    3. write to pasa adc, offset: 1024, data: 0x70 | pasa_adc_mode, slave 2, ring: variable use_scsn_link  (SCSN write offset 0x5800)
    4. send pretrigger command 1 via ACEX (pci)
    5. call store_all_pasa_adcs (reading values from SCSN offsets 0x5800 to 0x5A00) to store values to file pasa_adcs_man.out
    6. send pretrigger command 1 via ACEX (pci)
    7. send pretrigger command 1 via SCSN (SCSN offset 0x4008)
    8. call store_all_pasa_adcs (reading values from SCSN offsets 0x5800 to 0x5A00) to store values to file pasa_adcs_man_2.out


PASA DAC test
    trt.c:3105
    Actual test seems to be done in pasa_dac_test
      Only test w. relevance f. function retval goes to read_adc_eb (multiple calls, last one evaluated for retval)
    Evaluation done by pasa_parse_adcdata and pasa_dac_analyse
    trt.c:3212, loop (0x%X_pasa_dacs_1.out.dat, for loop) should probably be for ( i=0; i<21; i++ ) instead of only i<20