unixjazz · sabas1080 · May 12, 2021 · May 12, 2021 · May 12, 2021 · May 12, 2021
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -190,6 +190,7 @@ jobs:
         - "arduino_nano_33_iot"
         - "arduino_zero"
         - "bast_pro_mini_m0"
+        - "bast_saml21"
         - "bastble"
         - "bdmicro_vina_d21"
         - "bdmicro_vina_d51"

diff --git a/.gitmodules b/.gitmodules
@@ -35,7 +35,7 @@
 	url = https://github.com/k-bx/python-semver.git
 [submodule "atmel-samd/asf4"]
 	path = ports/atmel-samd/asf4
-	url = https://github.com/adafruit/asf4.git
+	url = https://github.com/UVA-DSI/asf4.git
 	branch = circuitpython
 [submodule "tools/usb_descriptor"]
 	path = tools/usb_descriptor
@@ -66,7 +66,7 @@
 	url = https://github.com/adafruit/Adafruit_CircuitPython_DotStar.git
 [submodule "ports/atmel-samd/peripherals"]
 	path = ports/atmel-samd/peripherals
-	url = https://github.com/adafruit/samd-peripherals.git
+	url = https://github.com/UVA-DSI/samd-peripherals
 [submodule "frozen/Adafruit_CircuitPython_Crickit"]
 	path = frozen/Adafruit_CircuitPython_Crickit
 	url = https://github.com/adafruit/Adafruit_CircuitPython_Crickit

diff --git a/lib/tinyusb b/lib/tinyusb
diff --git a/main.c b/main.c
@@ -557,6 +557,12 @@ STATIC void __attribute__ ((noinline)) run_boot_py(safe_mode_t safe_mode) {
 #endif
 }
 
+void delay(unsigned long milis){
+	for(unsigned long i=0;i<milis;i++){
+        __asm("NOP");
+    }
+}
+
 STATIC int run_repl(void) {
     int exit_code = PYEXEC_FORCED_EXIT;
     stack_resize();
@@ -585,14 +591,33 @@ int __attribute__((used)) main(void) {
     safe_mode_t safe_mode = port_init();
 
     // Turn on LEDs
-    init_status_leds();
-    rgb_led_status_init();
+    //init_status_leds();
+    //rgb_led_status_init();
+
+    //port regs = 0x40002800
+    int *pt;
+    //PAC
+    //pt = (int *)0x44000000;
+    //*pt =0x00FF000AU;
+    //Port stuff
+	pt = (int *)0x40002800;
+    *pt =1<<23;
+    pt = (int *)0x40002810;
+    //pt =1<23;
+    for(int i=0;i<5;i++){
+    //while(1){
+        *pt=1<<23;
+        delay(10);
+        *pt=0x00000000;
+        delay(10);
+    }
 
     // Wait briefly to give a reset window where we'll enter safe mode after the reset.
     if (safe_mode == NO_SAFE_MODE) {
         safe_mode = wait_for_safe_mode_reset();
     }
 
+
     stack_init();
 
     // Create a new filesystem only if we're not in a safe mode.
@@ -601,13 +626,15 @@ int __attribute__((used)) main(void) {
     filesystem_init(safe_mode == NO_SAFE_MODE, false);
 
     // displays init after filesystem, since they could share the flash SPI
-    board_init();
+    //board_init();
 
     // Start the debug serial
-    serial_early_init();
+    //serial_early_init();
 
     // Reset everything and prep MicroPython to run boot.py.
+    #if 1
     reset_port();
+    #endif
     // Port-independent devices, like CIRCUITPY_BLEIO_HCI.
     reset_devices();
     reset_board();
@@ -624,7 +651,6 @@ int __attribute__((used)) main(void) {
     // writable over USB. Set it here so that boot.py can change it.
     filesystem_set_internal_concurrent_write_protection(true);
     filesystem_set_internal_writable_by_usb(true);
-
     run_boot_py(safe_mode);
 
     // Start USB after giving boot.py a chance to tweak behavior.

diff --git a/ports/atmel-samd/Makefile b/ports/atmel-samd/Makefile
@@ -92,6 +92,13 @@ OPTIMIZATION_FLAGS ?= -Os
 CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_SAMD21 -DCFG_TUD_MIDI_RX_BUFSIZE=128 -DCFG_TUD_CDC_RX_BUFSIZE=128 -DCFG_TUD_MIDI_TX_BUFSIZE=128 -DCFG_TUD_CDC_TX_BUFSIZE=128 -DCFG_TUD_MSC_BUFSIZE=512
 endif
 
+ifeq ($(CHIP_FAMILY), saml21)
+PERIPHERALS_CHIP_FAMILY=saml21
+OPTIMIZATION_FLAGS ?= -Os
+# TinyUSB defines
+CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_SAMD21 -DCFG_TUD_MIDI_RX_BUFSIZE=128 -DCFG_TUD_CDC_RX_BUFSIZE=128 -DCFG_TUD_MIDI_TX_BUFSIZE=128 -DCFG_TUD_CDC_TX_BUFSIZE=128 -DCFG_TUD_MSC_BUFSIZE=512
+endif
+
 ifeq ($(CHIP_FAMILY), samd51)
 PERIPHERALS_CHIP_FAMILY=sam_d5x_e5x
 OPTIMIZATION_FLAGS ?= -O2 -fno-inline-functions
@@ -130,6 +137,9 @@ ifeq ($(DEBUG), 1)
   ifeq ($(CHIP_FAMILY), samd21)
     CFLAGS += -DENABLE_MICRO_TRACE_BUFFER
   endif
+  ifeq ($(CHIP_FAMILY), saml21)
+    CFLAGS += -DENABLE_MICRO_TRACE_BUFFER
+  endif
 else
   CFLAGS += -DNDEBUG
   # -finline-limit can shrink the image size.
@@ -169,6 +179,15 @@ CFLAGS += \
 	-mfloat-abi=soft \
 	-DSAMD21
 endif
+ifeq ($(CHIP_FAMILY), saml21)
+CFLAGS += \
+	-mthumb \
+	-mabi=aapcs-linux \
+	-mcpu=cortex-m0plus \
+	-msoft-float \
+	-mfloat-abi=soft \
+	-DSAML21
+endif
 ifeq ($(CHIP_FAMILY), samd51)
 CFLAGS += \
 	-mthumb \
@@ -211,6 +230,9 @@ endif
 ifeq ($(CHIP_FAMILY), samd21)
 LDFLAGS += -mthumb -mcpu=cortex-m0plus -Lasf/thirdparty/CMSIS/Lib/GCC/
 BOOTLOADER_SIZE := 0x2000
+else ifeq ($(CHIP_FAMILY), saml21)
+LDFLAGS += -mthumb -mcpu=cortex-m0plus -Lasf/thirdparty/CMSIS/Lib/GCC/
+BOOTLOADER_SIZE := 0x2000
 else ifeq ($(CHIP_FAMILY), samd51)
 LDFLAGS += -mthumb -mcpu=cortex-m4
 BOOTLOADER_SIZE := 0x4000
@@ -253,6 +275,13 @@ SRC_ASF += \
 	hpl/core/hpl_core_m0plus_base.c \
 	hpl/sysctrl/hpl_sysctrl.c \
 
+else ifeq ($(CHIP_FAMILY), saml21)
+SRC_ASF += \
+	hpl/core/hpl_core_m0plus_base.c \
+	hpl/mclk/hpl_mclk.c \
+	hpl/osc32kctrl/hpl_osc32kctrl.c \
+	hpl/oscctrl/hpl_oscctrl.c \
+
 else ifeq ($(CHIP_FAMILY), samd51)
 SRC_ASF += \
 	hal/src/hal_rand_sync.c \

diff --git a/ports/atmel-samd/asf4 b/ports/atmel-samd/asf4