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Fix Build HAT library to work on Raspberry Pi 5 #203

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Merged
merged 1 commit into from
Nov 23, 2023
Merged

Fix Build HAT library to work on Raspberry Pi 5 #203

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6 changes: 6 additions & 0 deletions buildhat/serinterface.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
import tempfile
import threading
import time
import os
from enum import Enum
from threading import Condition, Timer

Expand Down Expand Up @@ -105,6 +106,11 @@ def __init__(self, firmware, signature, version, device="/dev/serial0", debug=Fa
self.rampftr.append([])
self.motorqueue.append(queue.Queue())

# On a Pi 5 /dev/serial0 will point to /dev/ttyAMA10 (which *only*
# exists on a Pi 5, and is the 3-pin debug UART connector)
# The UART on the Pi 5 GPIO header is /dev/ttyAMA0
if device == "/dev/serial0" and os.readlink(device) == "ttyAMA10":
device = "/dev/ttyAMA0"
self.ser = serial.Serial(device, 115200, timeout=5)
# Check if we're in the bootloader or the firmware
self.write(b"version\r")
Expand Down