From 2bdd62220e1a6b5072d59cbab53730f852670df9 Mon Sep 17 00:00:00 2001
From: Jerry Needell <jerryneedell@gmail.com>
Date: Mon, 27 Jul 2020 21:50:36 -0400
Subject: [PATCH]  adjust stack for SAMD21 to accomodate larger pystack --
 update frozen module adafruit_busdevice

---
 frozen/Adafruit_CircuitPython_BusDevice                         | 2 +-
 .../atmel-samd/boards/circuitplayground_express/mpconfigboard.h | 2 +-
 ports/atmel-samd/mpconfigport.h                                 | 2 +-
 py/circuitpy_mpconfig.h                                         | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/frozen/Adafruit_CircuitPython_BusDevice b/frozen/Adafruit_CircuitPython_BusDevice
index e9411c4244..eb4b21e216 160000
--- a/frozen/Adafruit_CircuitPython_BusDevice
+++ b/frozen/Adafruit_CircuitPython_BusDevice
@@ -1 +1 @@
-Subproject commit e9411c4244984b69ec6928370ede40cec014c10b
+Subproject commit eb4b21e216efd8ec0c4862a938e81b56be961724
diff --git a/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h b/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
index 0c5e5b7622..12c48b1e39 100644
--- a/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
+++ b/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
@@ -28,7 +28,7 @@
 #define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up"
 
 // Increase stack size slightly due to CPX library import nesting
-#define CIRCUITPY_DEFAULT_STACK_SIZE  (4760) //divisible by 8
+#define CIRCUITPY_DEFAULT_STACK_SIZE  (4248) //divisible by 8
 
 #define USER_NEOPIXELS_PIN      (&pin_PB23)
 
diff --git a/ports/atmel-samd/mpconfigport.h b/ports/atmel-samd/mpconfigport.h
index 540a2f77c7..2a2428d679 100644
--- a/ports/atmel-samd/mpconfigport.h
+++ b/ports/atmel-samd/mpconfigport.h
@@ -109,7 +109,7 @@
 #endif
 
 #ifndef CIRCUITPY_DEFAULT_STACK_SIZE
-#define CIRCUITPY_DEFAULT_STACK_SIZE                4096
+#define CIRCUITPY_DEFAULT_STACK_SIZE                3584
 #endif
 
 #ifndef SAMD21_BOD33_LEVEL
diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index a1a7ec2389..255ab99b93 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -799,7 +799,7 @@ void supervisor_run_background_tasks_if_tick(void);
 #endif
 
 #ifndef CIRCUITPY_PYSTACK_SIZE
-#define CIRCUITPY_PYSTACK_SIZE 1024
+#define CIRCUITPY_PYSTACK_SIZE 1536
 #endif
 
 #define CIRCUITPY_BOOT_OUTPUT_FILE "/boot_out.txt"