fix sensecap watcher partition alignment

Author: 78

partitions_32M_sensecap.csv

@@ -4,6 +4,7 @@ nvsfactory, data,   nvs,        ,     200K,
 nvs,        data,   nvs,        ,     840K,
 otadata,    data,   ota,        ,     0x2000,
 phy_init,   data,   phy,        ,     0x1000,
-model,      data,   spiffs,     ,     1024K,
-ota_0,      app,    ota_0,      ,     12M,
-ota_1,      app,    ota_1,      ,     12M,
+model,      data,   spiffs,     ,     0xF0000,
+# According to scripts/versions.py, app partition must be aligned to 1MB
+ota_0,      app,    ota_0,      0x200000,     12M,
+ota_1,      app,    ota_1,      ,             12M,

scripts/versions.py

@@ -75,8 +75,14 @@ def get_board_name(folder):
 
 def read_binary(dir_path):
     merged_bin_path = os.path.join(dir_path, "merged-binary.bin")
-    data = open(merged_bin_path, "rb").read()[0x100000:]
-    if data[0] != 0xE9:
+    merged_bin_data = open(merged_bin_path, "rb").read()
+
+    # find app partition
+    if merged_bin_data[0x100000] == 0xE9:
+        data = merged_bin_data[0x100000:]
+    elif merged_bin_data[0x200000] == 0xE9:
+        data = merged_bin_data[0x200000:]
+    else:
         print(dir_path, "is not a valid image")
         return
     # get flash size