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GC 5016 Output Test Configuration---'tsin_r0_v1p1'

Wireless-Nil
Prodigy 95 points

1715.tsin_r0_v1p1.txt 
# tsin_r0_v1p1
# Generate an output sin wave while ignoring the input
# 0.063298 Fs #0.071111 Fs # 0.129704 Fs # 0.137781 Fs
# for transmit
# presumes four separate real outputs at 1x
# 
print table
print sim
print analysis
print gc101
print debug

mode ab transmit
mode cd transmit
fck 100

channel 0
tout_cmplx 0
tout_nsig 4
# 0 half rate cmplx, 1 normal, 2 2x
tout_rate 1
# res  0 normal 1 wide 2 differential
tout_res 0
tout_sumin 0
# differential coded together with res 
# cksum adds send in DC
tx_pat_gen 2
gen_timer_sync 0
gen_timer 4095

#fir_sync_cnt
#fir_en_sync
cksum_sync_back 5
cksum_sync_front 5
rinf_zpad_sync 7
toutf_hold_sync 7
tinf_src 0

cic_sync 5
nco_sync 5
dith_sync 5
fir_sync 5
soB_sync 5
sck_sync 5
phase_sync 7
freq_sync 7
pwr_mtr_sync 7    # changed from pwr_sync
gain_sync 7
coef_sync 7

freq_msb 0x1034
freq_mid 0x5000
# 0.063298 Fs
cic_int 8
bits 16
pins 16
tinf_cmplx 1
fir_int 4
fir_coef tck100.taps
tinf_fs_dly 1


channel 1
copy_channel 0
freq_msb 0x1234
freq_mid 0x5000
#0.071111 Fs

channel 2
copy_channel 0
freq_msb 0x2134
freq_mid 0x5000
# 0.129704 Fs

channel 3
copy_channel 0
freq_msb 0x2345
freq_mid 0xa000
# 0.137781 Fs

Hello,

     I have succeed to get the output of four channels by using the output test configurations 'tsin_r0_v1p1'. But when I changed the value of fck (100->160), and used the cmd5016 tool to get the values of all registers. I found that the values of all registers had not change at all.

    Also I found some warings in the .anl file: Both freq and fre_msb are set; Using freq_msb setting;

   but in the 'tsin_r0_v1p1'., I could not find the setting of freq.

Here is my questions:

  1、where does the freq be set in the tsin_r0_v1p1?

  2、In the file ,there are '# 0.063298 Fs #0.071111 Fs # 0.129704 Fs # 0.137781 Fs',  what does the Fs mean here?? fck or freq??

  3、why does the registers' value keep the same when I change the value of fck??

Regards,

nil

  • 0
    TI__Mastermind 37500 points

    Hello,

    The fck and freq commands are used together with the cmd5016 tool, to calculate the frequency registers.

    In this file, the freq_msb and freq_mid are directly set, in this case, the NCO frequency does not depend on fck.

    You would find that the NCO frequency will change in your test, depending on the clock used.  If you comment out the freq_msb and freq_mid lines, and put in a freq (value), in this case then the fck would make a difference for the desired output frequency. 

    Regards,

    Radio Joe

  • 0 in reply to Radio-Joe
    Prodigy 95 points

    Thanks RJ for the answer.In the datasheet P16, Freq_word = FTune/CK* 2^48. Here, Freq_word means the ferq_msb/ferq_min/freq_lsb. When the Freq_words are set, the FTune will change with the CK.

    According to your answer, I suppose that the CK in th formula means 'fck' and FTune means 'freq'. And for the DUC,
    F_out = F_in + FTune. Am I right?

  • 0 in reply to Wireless-Nil
    TI__Mastermind 37500 points

    Hello,

    Yes thats correct.

    In the cmd5016 program, the 48bit NCO value is programmed as freq_msb, freq_mid, freq_lsb if you want to set the fractional phase value.  If you want the cmd5016 program to calculate the value, the fck is the NCO sample frequency, and the freq is the tuning NCO frequency.

    Regards

    Radio Joe

  • 0 in reply to Radio-Joe
    Prodigy 95 points

    Thanks again for your kind answers !

    By the way, where can I find the Input Test Configuration(rby_r0) file?