modified SAMD21 PWM to use Arduino functions

Author: Paciente8159

boards/zeroUSB_au.json

@@ -0,0 +1,60 @@
+{
+  "build": {
+    "arduino": {
+        "ldscript": "flash_with_bootloader.ld"
+    },
+    "core": "arduino",
+    "cpu": "cortex-m0plus",
+    "extra_flags": "-DARDUINO_SAMD_ZERO -D__SAMD21G18AU__",
+    "f_cpu": "48000000L",
+    "hwids": [
+      [
+        "0x2341",
+        "0x804D"
+      ],
+      [
+        "0x2341",
+        "0x004D"
+      ],
+      [
+        "0x2341",
+        "0x824D"
+      ]
+    ],
+    "mcu": "samd21g18au",
+    "usb_product": "Arduino Zero",
+    "variant": "arduino_zero"
+  },
+  "debug": {
+    "jlink_device": "ATSAMD21G18",
+    "onboard_tools": [
+      "cmsis-dap"
+    ],
+    "openocd_chipname": "at91samd21g18",
+    "openocd_target": "at91samdXX",
+    "svd_path": "ATSAMD21G18A.svd"
+  },
+  "frameworks": [
+    "arduino"
+  ],
+  "name": "Arduino Zero (USB Native Port)",
+  "upload": {
+    "disable_flushing": true,
+    "maximum_ram_size": 32768,
+    "maximum_size": 262144,
+    "native_usb": true,
+    "offset_address": "0x2000",
+    "protocol": "sam-ba",
+    "protocols": [
+      "sam-ba",
+      "blackmagic",
+      "jlink",
+      "atmel-ice"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": true,
+    "wait_for_upload_port": true
+  },
+  "url": "https://www.arduino.cc/en/Main/ArduinoBoardZero",
+  "vendor": "Arduino"
+}

docs/mcumap_gen.xlsx

@@ -4,8 +4,6 @@
 
 [common_samd21]
 platform = atmelsam
-; platform_packages = platformio/toolchain-gccarmnoneeabi
-board = zeroUSB
 build_flags = ${env.build_flags} -std=gnu99 -Wall -fdata-sections -ffunction-sections -fno-exceptions -Wl,--gc-sections -nostdlib -fno-exceptions
 lib_deps = 
     ${env.lib_deps}
@@ -31,13 +29,15 @@ debug_init_cmds =
 
 [env:SAMD21-Wemos-M0]
 extends = common_samd21
+board = zeroUSB_au
 build_flags = ${common_samd21.build_flags} -D BOARDMAP=\"src/hal/boards/samd21/boardmap_mzero.h\"
 board_build.offset  = 0x2000
 board_upload.offset_address = 0x00002000
 
 
 [env:SAMD21-Arduino-Zero]
 extends = common_samd21
+board = zeroUSB
 build_flags = ${common_samd21.build_flags} -D BOARDMAP=\"src/hal/boards/samd21/boardmap_zero.h\"
 board_build.offset  = 0x4000
 board_upload.offset_address = 0x00004000

uCNC/src/hal/boards/samd21/samd21.ini

@@ -192,7 +192,7 @@ void EIC_Handler(void)
 #endif
 
 #ifdef ARDUINO
-uint32_t findPin(EPortType port, uint32_t pin)
+int findPin(EPortType port, int pin)
 {
 	for (unsigned int i = 0; i < PINCOUNT_fn(); i++)
 	{