nkaje commented on a change in pull request #2239: dialog_da1469x: enhance otp
and serial loader tools.
URL: https://github.com/apache/mynewt-core/pull/2239#discussion_r394037207
##########
File path: hw/bsp/dialog_da1469x-dk-pro/da1469x_serial.py
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@@ -51,21 +52,32 @@ def load(infile, uart):
# - If XOR matches, host sends 0x6 as final ack
# - board boots image after receiving ACK from host
-# if len(msg) == 0:
-# raise SystemExit("Read timed out, exiting")
-
- print("Please reset board to enter ROM uart recovery")
+ som_detected = False
+ reset_triggered = False
+ now = datetime.datetime.now()
+ reset_delay_us = 250000
while True:
+ elapsed = datetime.datetime.now() - now
+ if elapsed.seconds >= 15:
+ raise SystemExit("Failed to receive SOM, aborting")
+ if not som_detected and not reset_triggered:
+ if elapsed.microseconds >= reset_delay_us:
+ print("Triggering SWD reset...")
+ os.system("./reset.sh &")
Review comment:
For some reason, the serial read from the device after the reset doesn't
receive expected data. I addressed all other comments except for switching
os.system -> subprocess.call()
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