dpgeorge
diff --git a/‎ports/samd/boards/ADAFRUIT_FEATHER_M4_EXPRESS/mpconfigboard.mk
Lines changed: 4 additions & 1 deletion b/‎ports/samd/boards/ADAFRUIT_FEATHER_M4_EXPRESS/mpconfigboard.mk
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diff --git a/‎ports/samd/boards/ADAFRUIT_ITSYBITSY_M4_EXPRESS/mpconfigboard.mk
Lines changed: 4 additions & 1 deletion b/‎ports/samd/boards/ADAFRUIT_ITSYBITSY_M4_EXPRESS/mpconfigboard.mk
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diff --git a/‎ports/samd/boards/ADAFRUIT_METRO_M4_EXPRESS/mpconfigboard.mk
Lines changed: 4 additions & 1 deletion b/‎ports/samd/boards/ADAFRUIT_METRO_M4_EXPRESS/mpconfigboard.mk
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diff --git a/‎ports/samd/boards/MINISAM_M4/mpconfigboard.mk
Lines changed: 4 additions & 1 deletion b/‎ports/samd/boards/MINISAM_M4/mpconfigboard.mk
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diff --git a/‎ports/samd/boards/SEEED_WIO_TERMINAL/mpconfigboard.mk
Lines changed: 4 additions & 1 deletion b/‎ports/samd/boards/SEEED_WIO_TERMINAL/mpconfigboard.mk
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diff --git a/‎ports/samd/boards/SPARKFUN_SAMD51_THING_PLUS/mpconfigboard.mk
Lines changed: 4 additions & 1 deletion b/‎ports/samd/boards/SPARKFUN_SAMD51_THING_PLUS/mpconfigboard.mk
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diff --git a/‎ports/samd/boards/samd51x19a.ld
Lines changed: 13 additions & 3 deletions b/‎ports/samd/boards/samd51x19a.ld
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diff --git a/‎ports/samd/mcu/samd51/manifest.py
Lines changed: 0 additions & 3 deletions b/‎ports/samd/mcu/samd51/manifest.py
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diff --git a/‎ports/samd/mcu/samd51/mpconfigmcu.h
Lines changed: 4 additions & 4 deletions b/‎ports/samd/mcu/samd51/mpconfigmcu.h
Lines changed: 4 additions & 4 deletions
@@ -5,4 +5,7 @@ TEXT0 = 0x4000
 
 # The ?='s allow overriding in mpconfigboard.mk.
 # MicroPython settings
-MICROPY_HW_CODESIZE ?= 496K
+# The size of a MCU flash filesystem will be
+# 1008k - MICROPY_HW_CODESIZE - MICROPY_HW_VFSROMSIZE
+# The default for MICROPY_HW_VFSROMSIZE is 64K
+MICROPY_HW_CODESIZE ?= 432K
@@ -5,4 +5,7 @@ TEXT0 = 0x4000
 
 # The ?='s allow overriding in mpconfigboard.mk.
 # MicroPython settings
-MICROPY_HW_CODESIZE ?= 496K
+# The size of a MCU flash filesystem will be
+# 1008k - MICROPY_HW_CODESIZE - MICROPY_HW_VFSROMSIZE
+# The default for MICROPY_HW_VFSROMSIZE is 64K
+MICROPY_HW_CODESIZE ?= 432K
@@ -7,4 +7,7 @@ TEXT0 = 0x4000
 MICROPY_PY_NETWORK ?= 1
 MICROPY_PY_NETWORK_NINAW10 ?= 1
 
-MICROPY_HW_CODESIZE ?= 496K
+# The size of a MCU flash filesystem will be
+# 1008k - MICROPY_HW_CODESIZE - MICROPY_HW_VFSROMSIZE
+# The default for MICROPY_HW_VFSROMSIZE is 64K
+MICROPY_HW_CODESIZE ?= 432K
@@ -6,4 +6,7 @@ TEXT0 = 0x4000
 
 # The ?='s allow overriding in mpconfigboard.mk.
 # MicroPython settings
-MICROPY_HW_CODESIZE ?= 496K
+# The size of a MCU flash filesystem will be
+# 1008k - MICROPY_HW_CODESIZE - MICROPY_HW_VFSROMSIZE
+# The default for MICROPY_HW_VFSROMSIZE is 64K
+MICROPY_HW_CODESIZE ?= 432K
@@ -5,4 +5,7 @@ TEXT0 = 0x4000
 
 # The ?='s allow overriding in mpconfigboard.mk.
 # MicroPython settings
-MICROPY_HW_CODESIZE ?= 496K
+# The size of a MCU flash filesystem will be
+# 1008k - MICROPY_HW_CODESIZE - MICROPY_HW_VFSROMSIZE
+# The default for MICROPY_HW_VFSROMSIZE is 64K
+MICROPY_HW_CODESIZE ?= 432K
@@ -5,4 +5,7 @@ TEXT0 = 0x4000
 
 # The ?='s allow overriding in mpconfigboard.mk.
 # MicroPython settings
-MICROPY_HW_CODESIZE ?= 1008K
+# The size of a MCU flash filesystem will be
+# 1008k - MICROPY_HW_CODESIZE - MICROPY_HW_VFSROMSIZE
+MICROPY_HW_CODESIZE ?= 752K
+MICROPY_HW_VFSROMSIZE ?= 256K
@@ -3,8 +3,8 @@
 */
 
 /*
-_codesize is defined in mpconfigmcu.mk or mpconfigboard.mk as
-MICROPY_HW_CODESIZE and is set in Makefile
+_codesize and _vfsromsize are defined in mpconfigmcu.mk or mpconfigboard.mk
+as MICROPY_HW_CODESIZE and MICROPY_HW_VFSROMSIZE and are set in Makefile.
 */
 
 _flashsize = 512K;  /* The physical flash size */
@@ -21,8 +21,18 @@ MEMORY
 _estack = ORIGIN(RAM) + LENGTH(RAM) - 8;
 _sstack = _estack - 16K;
 
+/*
+The VfsROM file system is placed at the end of the flash.
+For device with SPI flash the number for _sflash_fs might be 0.
+That does not matter since these devices do not use the MCU flash file
+system.
+*/
+
 _oflash_fs = ORIGIN(FLASH) + _codesize;
-_sflash_fs = _flashsize - _codesize - _bootloader;
+_sflash_fs = _flashsize - _codesize - _bootloader - _vfsromsize;
+
+_oflash_vfsrom = ORIGIN(FLASH) + _flashsize - _vfsromsize - _bootloader;
+_sflash_vfsrom = _vfsromsize;
 
 _sheap = _ebss;
 _eheap = _sstack;
@@ -3,8 +3,8 @@
 */
 
 /*
-_codesize is defined in mpconfigmcu.mk or mpconfigboard.mk as
-MICROPY_HW_CODESIZE and is set in Makefile
+_codesize and _vfsromsize are defined in mpconfigmcu.mk or mpconfigboard.mk
+as MICROPY_HW_CODESIZE and MICROPY_HW_VFSROMSIZE and are set in Makefile.
 */
 
 _flashsize = 1024K; /* The physical flash size */
@@ -21,8 +21,18 @@ MEMORY
 _estack = ORIGIN(RAM) + LENGTH(RAM) - 8;
 _sstack = _estack - 16K;
 
+/*
+The VfsROM file system is placed at the end of the flash.
+For device with SPI flash the number for _sflash_fs might be 0.
+That does not matter since these devices do not use the MCU flash file
+system.
+*/
+
 _oflash_fs = ORIGIN(FLASH) + _codesize;
-_sflash_fs = _flashsize - _codesize - _bootloader;
+_sflash_fs = _flashsize - _codesize - _bootloader - _vfsromsize;
+
+_oflash_vfsrom = ORIGIN(FLASH) + _flashsize - _vfsromsize - _bootloader;
+_sflash_vfsrom = _vfsromsize;
 
 _sheap = _ebss;
 _eheap = _sstack;
@@ -1,5 +1,2 @@
 include("$(PORT_DIR)/boards/manifest.py")
 include("$(MPY_DIR)/extmod/asyncio")
-require("onewire")
-require("ds18x20")
-require("dht")
@@ -18,10 +18,10 @@ unsigned long trng_random_u32(void);
 #define MICROPY_PY_MACHINE_UART_IRQ     (1)
 
 // fatfs configuration used in ffconf.h
-#define MICROPY_FATFS_ENABLE_LFN            (1)
-#define MICROPY_FATFS_RPATH                 (2)
-#define MICROPY_FATFS_MAX_SS                (4096)
-#define MICROPY_FATFS_LFN_CODE_PAGE         437 /* 1=SFN/ANSI 437=LFN/U.S.(OEM) */
+#define MICROPY_FATFS_ENABLE_LFN        (1)
+#define MICROPY_FATFS_RPATH             (2)
+#define MICROPY_FATFS_MAX_SS            (4096)
+#define MICROPY_FATFS_LFN_CODE_PAGE     437 /* 1=SFN/ANSI 437=LFN/U.S.(OEM) */
 
 #define VFS_BLOCK_SIZE_BYTES            (1536) //