Add seq_table2cmd func

- convert one seq talbe line into a command to send

pandablocks/utils.py

@@ -0,0 +1,65 @@
+
+
+def seq_table2cmd(repeats: int, trigger: int, position: int, time1: int, phase1: dict, time2: int, phase2: dict):
+    """
+    Function to encode (repeats, trigger, phase1, phase2) into 32bit integer (code).
+
+    Return a list of str [code, position, time1, time2] to send to pandabox sequencer (SEQ)
+    table.
+
+    Example:
+        ```python
+        keys = ["a", "b", "c", "d", "e", "f"]  
+        repeats = 1 
+        time1 = 0  
+        position = 0  
+        trigger = "Immediate"  
+        phase1 = {key: False for key in keys} 
+        time2 = 0  
+        phase2 = {key: False if key != "a" else True for key in keys}
+        pandabox.send(
+                Put(
+                    "SEQ1.TABLE",seq_table(
+                        repeats, trigger, position, time1, phase2, time2, phase2
+                    ),
+                )
+            )
+        ```
+    """
+    trigger_options = {
+        "Immediate": 0,
+        "bita=0": 1,
+        "bita=1": 2,
+        "bitb=0": 3,
+        "bitb=1": 4,
+        "bitc=0": 5,
+        "bitc=1": 6,
+        "posa>=position": 7,
+        "posa<=position": 8,
+        "posb>=position": 9,
+        "posb<=position": 10,
+        "posc>=position": 11,
+        "posc<=position": 12,
+    }
+
+    # _b binary code
+    repeats_b = "{0:016b}".format(repeats)  # 16 bits
+    trigger_b = "{0:04b}".format(trigger_options[trigger])  # 4 bits (17-20)
+    phase1_b = ""
+    for key, value in sorted(phase1.items()):  # 6 bits (a-f)
+        phase1_b = "1" + phase1_b if value else "0" + phase1_b
+    phase2_b = ""
+    for key, value in sorted(phase2.items()):  # 6 bits (a-f)
+        phase2_b = "1" + phase2_b if value else "0" + phase2_b
+    code_b = phase2_b + phase1_b + trigger_b + repeats_b  # 32 bits code
+    code = int(code_b, 2)
+
+    # a table line = [code position time1 time2]
+    pos_cmd = [
+        f"{code:d}",
+        f"{int(position):d}",
+        f"{int(time1):d}",
+        f"{int(time2):d}",
+    ]
+
+    return pos_cmd