forked from M-Labs/artiq
wrpll.filters: update to match Weida's MatLab simulations
This commit is contained in:
parent
e9ab434fa7
commit
b44b870452
@ -3,8 +3,7 @@ helper_xn2 = 0
|
||||
helper_yn0 = 0
|
||||
helper_yn1 = 0
|
||||
helper_yn2 = 0
|
||||
|
||||
previous_helper_tag = 0
|
||||
helper_out = 0
|
||||
|
||||
main_xn1 = 0
|
||||
main_xn2 = 0
|
||||
@ -13,31 +12,31 @@ main_yn1 = 0
|
||||
main_yn2 = 0
|
||||
|
||||
|
||||
def helper(helper_tag):
|
||||
def helper(tag_diff):
|
||||
global helper_xn1, helper_xn2, helper_yn0, \
|
||||
helper_yn1, helper_yn2, previous_helper_tag
|
||||
helper_yn1, helper_yn2, helper_out
|
||||
|
||||
helper_xn0 = helper_tag - previous_helper_tag - 32768
|
||||
helper_xn0 = 0 - tag_diff # *(2**22)
|
||||
|
||||
helper_yr = 4294967296
|
||||
|
||||
helper_yn2 = helper_yn1
|
||||
helper_yn1 = helper_yn0
|
||||
helper_yn0 = (
|
||||
((284885689*((217319150*helper_xn0 >> 44) +
|
||||
(-17591968725107*helper_xn1 >> 44))) >> 44) +
|
||||
(-35184372088832*helper_yn1 >> 44) -
|
||||
(17592186044416*helper_yn2 >> 44))
|
||||
|
||||
helper_yn0 = (284885690 * (helper_xn0
|
||||
+ (217319150 * helper_xn1 >> 44)
|
||||
- (17591968725108 * helper_xn2 >> 44)
|
||||
) >> 44
|
||||
) + (35184372088832*helper_yn1 >> 44) - helper_yn2
|
||||
|
||||
helper_xn2 = helper_xn1
|
||||
helper_xn1 = helper_xn0
|
||||
|
||||
previous_helper_tag = helper_tag
|
||||
|
||||
helper_yn0 = min(helper_yn0, helper_yr)
|
||||
helper_yn0 = max(helper_yn0, 0 - helper_yr)
|
||||
helper_out = 268435456*helper_yn0 >> 44
|
||||
|
||||
return helper_yn0
|
||||
return helper_out
|
||||
|
||||
|
||||
def main(main_xn0):
|
||||
|
Loading…
Reference in New Issue
Block a user