reset uart at the begining of each modem usage to ensure access to mo…

…dem uart
insighio · May 17, 2023 · d173e26 · d173e26
1 parent 44eb0d5
commit d173e26
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Showing 2 changed files with 9 additions and 2 deletions.
diff --git a/insighioNode/apps/demo_console/cellular.py b/insighioNode/apps/demo_console/cellular.py
@@ -25,6 +25,8 @@ def prepareForConnectAndUpload():
     modem_instance = cellular.get_modem_instance()
     if modem_instance is None:
         return
+
+    modem_instance.reset_uart()
     modem_instance.prioritizeWWAN()
 
 def prepareForGPS():

diff --git a/insighioNode/lib/networking/modem/modem_base.py b/insighioNode/lib/networking/modem/modem_base.py
@@ -18,14 +18,19 @@ def __init__(self, power_on=None, power_key=None, modem_tx=None, modem_rx=None):
         self.gps_timestamp = None
         self.gps_date = None
         self.data_over_ppp = True
+        self.modem_tx = modem_tx
+        self.modem_rx = modem_rx
 
         if modem_tx is not None and modem_rx is not None:
-            self.uart = UART(1, 115200, tx=modem_tx, rx=modem_rx)
-            self.uart.init(115200, bits=8, parity=None, stop=1, tx=modem_tx, rx=modem_rx, timeout=500, timeout_char=1000)
+            self.reset_uart()
 
         self.modem_power_on = power_on
         self.modem_power_key = power_key
 
+    def reset_uart(self):
+        self.uart = UART(1, 115200, tx=self.modem_tx, rx=self.modem_rx)
+        self.uart.init(115200, bits=8, parity=None, stop=1, tx=self.modem_tx, rx=self.modem_rx, timeout=500, timeout_char=1000)
+
     def has_data_over_ppp(self):
         return self.data_over_ppp