Standardize CPU temp and voltage. Add autogen warning

ports/broadcom/common-hal/microcontroller/Processor.c

@@ -34,7 +34,7 @@ float common_hal_mcu_processor_get_temperature(void) {
 }
 
 float common_hal_mcu_processor_get_voltage(void) {
-    return 1.2f;
+    return NAN;
 }
 
 uint32_t common_hal_mcu_processor_get_frequency(void) {

ports/espressif/common-hal/microcontroller/Processor.c

@@ -47,7 +47,7 @@
 float common_hal_mcu_processor_get_temperature(void) {
     float tsens_out;
     #if defined(CONFIG_IDF_TARGET_ESP32)
-    mp_raise_NotImplementedError(NULL);
+    return NAN;
     #else
     temp_sensor_config_t temp_sensor = TSENS_CONFIG_DEFAULT(); // DEFAULT: range:-10℃ ~  80℃, error < 1℃.
     temp_sensor_set_config(temp_sensor);

ports/mimxrt10xx/common-hal/microcontroller/Processor.c

@@ -54,7 +54,7 @@ float common_hal_mcu_processor_get_temperature(void) {
 
     return temp;
     #else
-    return 0;
+    return NAN;
     #endif
 }
 

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1011/periph.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1011` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/periph.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1011/periph.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1011` to update this file.
+ */
+
 #pragma once
 extern LPI2C_Type *const mcu_i2c_banks[2];
 extern const mcu_periph_obj_t mcu_i2c_sda_list[8];

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1011/pins.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1011` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/pins.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1011/pins.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1011` to update this file.
+ */
+
 #pragma once
 
 #define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1015/periph.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1015` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/periph.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1015/periph.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1015` to update this file.
+ */
+
 #pragma once
 extern LPI2C_Type *const mcu_i2c_banks[2];
 extern const mcu_periph_obj_t mcu_i2c_sda_list[2];

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1015/pins.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1015` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/pins.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1015/pins.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1015` to update this file.
+ */
+
 #pragma once
 
 #define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1021/periph.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1021` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/periph.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1021/periph.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1021` to update this file.
+ */
+
 #pragma once
 extern LPI2C_Type *const mcu_i2c_banks[4];
 extern const mcu_periph_obj_t mcu_i2c_sda_list[8];

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1021/pins.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1021` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/pins.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1021/pins.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1021` to update this file.
+ */
+
 #pragma once
 
 #define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1042/periph.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1042` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/periph.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1042/periph.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1042` to update this file.
+ */
+
 #pragma once
 extern LPI2C_Type *const mcu_i2c_banks[4];
 extern const mcu_periph_obj_t mcu_i2c_sda_list[9];

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1042/pins.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1042` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/pins.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1042/pins.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1042` to update this file.
+ */
+
 #pragma once
 
 #define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1052/periph.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1052` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/periph.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1052/periph.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1052` to update this file.
+ */
+
 #pragma once
 extern LPI2C_Type *const mcu_i2c_banks[4];
 extern const mcu_periph_obj_t mcu_i2c_sda_list[9];

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1052/pins.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1052` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/pins.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1052/pins.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1052` to update this file.
+ */
+
 #pragma once
 
 #define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1062/periph.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1062` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/periph.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1062/periph.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1062` to update this file.
+ */
+
 #pragma once
 extern LPI2C_Type *const mcu_i2c_banks[4];
 extern const mcu_periph_obj_t mcu_i2c_sda_list[9];

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1062/pins.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1062` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/pins.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1062/pins.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1062` to update this file.
+ */
+
 #pragma once
 
 #define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1176/periph.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1176` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/periph.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1176/periph.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1176` to update this file.
+ */
+
 #pragma once
 extern LPI2C_Type *const mcu_i2c_banks[6];
 extern const mcu_periph_obj_t mcu_i2c_sda_list[8];

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1176/pins.c

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1176` to update this file.
+ */
+
 #include "py/obj.h"
 #include "py/mphal.h"
 #include "mimxrt10xx/pins.h"

ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1176/pins.h

@@ -26,6 +26,14 @@
  * THE SOFTWARE.
  */
 
+/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> MIMXRT1176` to update this file.
+ */
+
 #pragma once
 
 #define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;

ports/mimxrt10xx/tools/gen_peripherals_data.py

@@ -60,8 +60,18 @@ copyright = """/*
  */
 """
 
+autogen_warning_template = """/*
+ * This file is autogenerated! Do NOT hand edit it. Instead, edit tools/gen_peripherals_data.py and
+ * then rerun the script. You'll need to 1) clone https://github.com/nxp-mcuxpresso/mcux-soc-svd/
+ * and 2) download and extract config tools data from https://mcuxpresso.nxp.com/en/select_config_tools_data.
+ *
+ * Run `python tools/gen_peripherals_data.py <svd dir> <config dir> {}` to update this file.
+ */
+"""
+
 for device in devices:
     print(device)
+    autogen_warning = autogen_warning_template.format(device)
     svd_fn = svd_folder / device / (device + ".xml")
     if not svd_fn.exists():
         svd_fn = svd_folder / device / (device + "_cm7.xml")
@@ -129,6 +139,7 @@ for device in devices:
 
     pins_h = [
         copyright,
+        autogen_warning,
         "#pragma once",
         "",
         "#define FORMAT_PIN(pin_name) extern const mcu_pin_obj_t pin_##pin_name;",
@@ -137,6 +148,7 @@ for device in devices:
     ]
     pins_c = [
         copyright,
+        autogen_warning,
         '#include "py/obj.h"',
         '#include "py/mphal.h"',
         '#include "mimxrt10xx/pins.h"',
@@ -255,7 +267,8 @@ for device in devices:
                 f"const mcu_pin_obj_t pin_{pin_name} = PIN({gpio_instance}, {gpio_number}, {pin_name}, {adc_instance}, {adc_channel}, 0x{mux_reset:08X}, 0x{pad_reset:08X});"
             )
 
-    pins_c.append("")
+    if usb_pins:
+        pins_c.append("")
 
     for pin_name in sorted(usb_pins):
         pin_names_h.append(f"FORMAT_PIN({pin_name})")
@@ -275,9 +288,10 @@ for device in devices:
     (out_dir / "pins.h").write_text("\n".join(pins_h))
     (out_dir / "pins.c").write_text("\n".join(pins_c))
 
-    periph_h = [copyright, "#pragma once"]
+    periph_h = [copyright, autogen_warning, "#pragma once"]
     periph_c = [
         copyright,
+        autogen_warning,
         '#include "py/obj.h"',
         '#include "py/mphal.h"',
         '#include "mimxrt10xx/periph.h"',
@@ -352,5 +366,7 @@ for device in devices:
     periph_c.append(f"}};")
     periph_c.append("")
 
+    periph_h.append("")
+
     (out_dir / "periph.h").write_text("\n".join(periph_h))
     (out_dir / "periph.c").write_text("\n".join(periph_c))

ports/raspberrypi/common-hal/microcontroller/Processor.c

@@ -53,7 +53,7 @@ float common_hal_mcu_processor_get_temperature(void) {
 }
 
 float common_hal_mcu_processor_get_voltage(void) {
-    return 3.3f;
+    return NAN;
 }
 
 uint32_t common_hal_mcu_processor_get_frequency(void) {

ports/silabs/common-hal/microcontroller/Processor.c

@@ -46,7 +46,7 @@ float common_hal_mcu_processor_get_temperature(void) {
 float common_hal_mcu_processor_get_voltage(void) {
     // xG24 does not have built-in direct reading of processor voltage
     // Have Only 1 of IADC, already used for analogio module
-    return 3.3f;
+    return NAN;
 }
 
 uint32_t common_hal_mcu_processor_get_frequency(void) {

ports/stm/common-hal/microcontroller/Processor.c

@@ -96,7 +96,7 @@ float common_hal_mcu_processor_get_temperature(void) {
     float core_temp_avg_slope = (*ADC_CAL2 - *ADC_CAL1) / 80.0;
     return (((float)value * adc_refcor - *ADC_CAL1) / core_temp_avg_slope) + 30.0f;
     #else
-    return false;
+    return NAN;
     #endif
 }
 
@@ -129,7 +129,7 @@ float common_hal_mcu_processor_get_voltage(void) {
 
     return adc_refcor * 3.3f;
     #else
-    return false;
+    return NAN;
     #endif
 }