Arduino Pico (earlephillhower) で過剰なシリアル通信によるフリーズを防ぐ

1
--- a/src/tusb.c
2
+++ b/src/tusb.c
3
@@ -118,7 +118,7 @@ bool tu_edpt_claim(tu_edpt_state_t* ep_state, osal_mutex_t mutex)
4

5
   // pre-check to help reducing mutex lock
6
   TU_VERIFY((ep_state->busy == 0) && (ep_state->claimed == 0));
7
-  (void) osal_mutex_lock(mutex, OSAL_TIMEOUT_WAIT_FOREVER);
8
+  (void) osal_mutex_lock(mutex, OSAL_TIMEOUT_NORMAL); //OSAL_TIMEOUT_WAIT_FOREVER);
9

10
   // can only claim the endpoint if it is not busy and not claimed yet.
11
   bool const available = (ep_state->busy == 0) && (ep_state->claimed == 0);

1
#!/usr/bin/env bash
2

3
set -euo pipefail
4

5
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
6

7
PATCH_SET=(
8
  "$HOME/.platformio/packages/framework-arduinopico/libraries/Adafruit_TinyUSB_Arduino"
9
  "$SCRIPT_DIR/fix-tusb-deadlock.patch" # 上記のdiffを保存したファイル (スクリプトと同じ場所に配置)
10
)
11

12
apply_patch() {
13
  local root_path="$1"
14
  local patch_file="$2"
15

16
  if [ ! -d "$root_path" ]; then
17
    echo "Error: Directory $root_path does not exist."
18
    exit 1
19
  fi
20

21
  if [ ! -f "$patch_file" ]; then
22
    echo "Error: Patch file $patch_file does not exist."
23
    exit 1
24
  fi
25

26
  echo -n "Applying $(basename "$patch_file") to $root_path..."
27

28
  if git -C "$root_path" apply --check "$patch_file" &>/dev/null; then
29
    git -C "$root_path" apply "$patch_file"
30
    echo " done."
31
  else
32
    echo " already applied or cannot be applied."
33
  fi
34
}
35

36
main() {
37
  local total_patches=${#PATCH_SET[@]}
38

39
  for ((i=0; i<total_patches; i+=2)); do
40
    local root_path="${PATCH_SET[i]}"
41
    local patch_file="${PATCH_SET[i+1]}"
42

43
    apply_patch "$root_path" "$patch_file"
44
  done
45
}
46

47
main

1
build_flags =
2
  ...
3
  '-DUSE_TINYUSB'