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MyVCD.py
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import sys
from vcd import VCDWriter
from array import array
buf = array('B', [250, 250, 250, 250, 250, 250, 249, 249, 249, 250, 250, 250, 250, 250, 250, 250, 250, 251, 251, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250
, 250, 250, 250, 250])
# 变量就是之前定义的
# 位置就是buf[i]的i，就是索引
# 值buf[i]的每一个二进制位(对2取余的结果是0还是1)
buf_bin = []
for i in range(0,len(buf)):
buf_bin.append(bin(buf[i]).replace('0b',''))
D0_init = int(buf_bin[0][7])
D1_init = int(buf_bin[0][6])
D2_init = int(buf_bin[0][5])
D0_timestamp = []
D0_Value = []
for i in range(1,len(buf)):
if buf_bin[i-1][7] != buf_bin[i][7]:
D0_timestamp.append(i) # 要注意timestamp为空的情况，说明这一个通道的信号全程一个值，就只有初始值就没有后面的writer.change过程
D0_Value.append(int(buf_bin[i][7]))
D1_timestamp = []
D1_Value = []
for i in range(1,len(buf)):
if buf_bin[i-1][6] != buf_bin[i][6]:
D1_timestamp.append(i) # 要注意timestamp为空的情况，说明这一个通道的信号全程一个值，就只有初始值就没有后面的writer.change过程
D1_Value.append(int(buf_bin[i][6]))
D2_timestamp = []
D2_Value = []
for i in range(1,len(buf)):
if buf_bin[i-1][5] != buf_bin[i][5]:
D2_timestamp.append(i) # 要注意timestamp为空的情况，说明这一个通道的信号全程一个值，就只有初始值就没有后面的writer.change过程
D2_Value.append(int(buf_bin[i][5]))
# data的结构： | timestamp | value_counter_var0 | value_counter_var1 |
# 然后data应该是一个二维list
# 这样就是先把所有的timestamp和对应的value全部统计出来，按顺序放在data里，然后直接写入，因为VCDWriter是按行写入的，已经写入的行是不可以再修改的
# 去重合并
D_timestamp = list(set(D0_timestamp + D1_timestamp + D2_timestamp))
# 正向排序
D_timestamp.sort()
# len(D_timestamp) * 4 的二维list(元素用None填充)
D_data = [[None] * 4 for row in range(len(D_timestamp))]
for i in range(0,len(D_timestamp)):
D_data[i][0]= D_timestamp[i]
# 把D0_timestamp对应的value填入D_data中
for i in range(0,len(D0_timestamp)):
# print(D_timestamp.index(D0_timestamp[i]))
D_data[D_timestamp.index(D0_timestamp[i])][1] = D0_Value[i]
# 把D1_timestamp对应的value填入D_data中
for i in range(0,len(D1_timestamp)):
# print(D_timestamp.index(D1_timestamp[i]))
D_data[D_timestamp.index(D1_timestamp[i])][2] = D1_Value[i]
# 把D2_timestamp对应的value填入D_data中
for i in range(0,len(D2_timestamp)):
# print(D_timestamp.index(D2_timestamp[i]))
D_data[D_timestamp.index(D2_timestamp[i])][3] = D2_Value[i]
'''D_data = [ [3,1,None], # len(D0_data)算的是最外层[]的长度
[6,0,1],
[9,1,0],
[18,0,1]]'''
with VCDWriter(sys.stdout, timescale='1 ns', date='today', comment='Acquisition with 8/8 channels at 20 kHz',version='libsigrok 0.5.1') as writer: # timescale='1 ns'这里单位不对有问题
counter_var0 = writer.register_var('libsigrok', 'D0', 'wire',size=1,init=D0_init,ident='#') # init是这个var的初始值
counter_var1 = writer.register_var('libsigrok', 'D1', 'wire', size=1,init=D1_init,ident='!') # init是这个var的初始值
counter_var2 = writer.register_var('libsigrok', 'D2', 'wire', size=1, init=D2_init, ident='$') # init是这个var的初始值
# for i in range(0, len(D0_timestamp)):
'''for i in range(0,len(D0_timestamp)):
writer.change(counter_var0, D0_timestamp[i], D0_Value[i])
# for j in range(0,len(D1_timestamp)):
writer.change(counter_var1, D1_timestamp[j], D1_Value[j])'''
#for i in range(0, len(D1_timestamp)):
# writer.change(counter_var1, D1_timestamp[i], int(buf_bin[(D1_timestamp[i])][6]))
for i in range(0,len(D_data)):
if D_data[i][1] != None:
writer.change(counter_var0, D_data[i][0], D_data[i][1])
if D_data[i][2] != None:
writer.change(counter_var1, D_data[i][0], D_data[i][2])
if D_data[i][3] != None:
writer.change(counter_var2, D_data[i][0], D_data[i][3])
'''writer.change(counter_var0, 100, 0) # writer.change(变量,时间戳（位置）,翻转（值）)，0就是前面都是1这一位从1翻转为0
writer.change(counter_var1, 100, 0)
writer.change(counter_var0, 1000, 1) # writer.change(变量,时间戳（位置）,翻转)，1就是前面都是0这一位从1翻转为1
writer.change(counter_var1, 1000, 1)
writer.change(counter_var0, 1500, 0)
writer.change(counter_var1, 1500, 0)'''
print('ok')