diff --git a/Marlin/src/HAL/LPC1768/HAL_SPI.cpp b/Marlin/src/HAL/LPC1768/HAL_SPI.cpp
index 4d6cb55cff5..6ce7f755527 100644
--- a/Marlin/src/HAL/LPC1768/HAL_SPI.cpp
+++ b/Marlin/src/HAL/LPC1768/HAL_SPI.cpp
@@ -318,7 +318,7 @@ void SPIClass::dmaSend(void *buf, uint16_t length, bool minc) {
   // Enable DMA
   GPDMA_ChannelCmd(0, ENABLE);
 
-  /*
+  /**
    * Observed behaviour on normal data transfer completion (SKR 1.3 board / LPC1768 MCU)
    *   GPDMA_STAT_INTTC flag is SET
    *   GPDMA_STAT_INTERR flag is NOT SET
diff --git a/Marlin/src/HAL/SAMD21/fastio.h b/Marlin/src/HAL/SAMD21/fastio.h
index df907ff7ec6..471e8b62abc 100644
--- a/Marlin/src/HAL/SAMD21/fastio.h
+++ b/Marlin/src/HAL/SAMD21/fastio.h
@@ -129,7 +129,7 @@
  * Added as necessary or if I feel like it- not a comprehensive list!
  */
 
-/*
+/**
  * Some of these share the same source and so can't be used in the same time
  */
 #define PWM_PIN(P)        (WITHIN(P, 2, 13) || WITHIN(P, 22, 23) || WITHIN(P, 44, 45) || P == 48)
diff --git a/Marlin/src/HAL/SAMD51/fastio.h b/Marlin/src/HAL/SAMD51/fastio.h
index 0acf4813179..3d43bdb24d8 100644
--- a/Marlin/src/HAL/SAMD51/fastio.h
+++ b/Marlin/src/HAL/SAMD51/fastio.h
@@ -130,7 +130,7 @@
 
 #ifdef ADAFRUIT_GRAND_CENTRAL_M4
 
-  /*
+  /**
    * Adafruit Grand Central M4 has a lot of PWMs the availables are listed here.
    * Some of these share the same source and so can't be used in the same time
    */
@@ -176,7 +176,7 @@
 
   #define digitalPinToAnalogInput(P) (WITHIN(P, 67, 74) ? (P) - 67 : WITHIN(P, 54, 61) ? 8 + (P) - 54 : WITHIN(P, 12, 13) ? 16 + (P) - 12 : P == 9 ? 18 : -1)
 
-  /*
+  /**
    * pins
    */
 
diff --git a/Marlin/src/HAL/SAMD51/spi_pins.h b/Marlin/src/HAL/SAMD51/spi_pins.h
index f1e4fd43024..2c7cbeb9943 100644
--- a/Marlin/src/HAL/SAMD51/spi_pins.h
+++ b/Marlin/src/HAL/SAMD51/spi_pins.h
@@ -27,7 +27,7 @@
 
 #ifdef ADAFRUIT_GRAND_CENTRAL_M4
 
- /*
+ /**
   * AGCM4 Default SPI Pins
   *
   *         SS    SCK   MISO   MOSI
diff --git a/Marlin/src/HAL/STM32F1/SPI.h b/Marlin/src/HAL/STM32F1/SPI.h
index 0941fa55b78..27bf684388e 100644
--- a/Marlin/src/HAL/STM32F1/SPI.h
+++ b/Marlin/src/HAL/STM32F1/SPI.h
@@ -58,7 +58,7 @@
 #define SPI_CLOCK_DIV128 SPI_BAUD_PCLK_DIV_128
 #define SPI_CLOCK_DIV256 SPI_BAUD_PCLK_DIV_256
 
-/*
+/**
  * Roger Clark. 20150106
  * Commented out redundant AVR defined
  *
@@ -153,7 +153,7 @@ private:
   friend class SPIClass;
 };
 
-/*
+/**
  * Kept for compat.
  */
 static const uint8_t ff = 0xFF;
@@ -233,7 +233,7 @@ public:
   void onReceive(void(*)());
   void onTransmit(void(*)());
 
-  /*
+  /**
    * I/O
    */
 
@@ -314,7 +314,7 @@ public:
   uint8_t dmaSendRepeat(uint16_t length);
 
   uint8_t dmaSendAsync(const void * transmitBuf, uint16_t length, bool minc = 1);
-  /*
+  /**
    * Pin accessors
    */
 
@@ -398,7 +398,7 @@ private:
 
   void updateSettings();
 
-  /*
+  /**
    * Functions added for DMA transfers with Callback.
    * Experimental.
    */
diff --git a/Marlin/src/feature/leds/leds.cpp b/Marlin/src/feature/leds/leds.cpp
index 7305581cd04..ac7f1815162 100644
--- a/Marlin/src/feature/leds/leds.cpp
+++ b/Marlin/src/feature/leds/leds.cpp
@@ -105,7 +105,7 @@ void LEDLights::setup() {
     PCA9632_set_led_color(curColor);      // blackout
     delay(200);
 
-    /*
+    /**
      * LED Pin Counter steps -> events
      * | 0-100 | 100-200 | 200-300 | 300-400 |
      *  fade in   steady |           fade out
diff --git a/Marlin/src/feature/leds/pca9533.cpp b/Marlin/src/feature/leds/pca9533.cpp
index 914db21ba31..d71760e2cb6 100644
--- a/Marlin/src/feature/leds/pca9533.cpp
+++ b/Marlin/src/feature/leds/pca9533.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/src/feature/leds/pca9533.h b/Marlin/src/feature/leds/pca9533.h
index 431058c4913..3a18e96b245 100644
--- a/Marlin/src/feature/leds/pca9533.h
+++ b/Marlin/src/feature/leds/pca9533.h
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
@@ -21,7 +21,7 @@
  */
 #pragma once
 
-/*
+/**
  * Driver for the PCA9533 LED controller found on the MightyBoard
  * used by FlashForge Creator Pro, MakerBot, etc.
  * Written 2020 APR 01 by grauerfuchs
diff --git a/Marlin/src/feature/meatpack.h b/Marlin/src/feature/meatpack.h
index 98a535e5923..37039c3056e 100644
--- a/Marlin/src/feature/meatpack.h
+++ b/Marlin/src/feature/meatpack.h
@@ -20,7 +20,7 @@
  *
  */
 
-/*
+/**
  * MeatPack G-code Compression
  *
  * Algorithm & Implementation: Scott Mudge - mail@scottmudge.com
diff --git a/Marlin/src/lcd/e3v2/proui/bedlevel_tools.h b/Marlin/src/lcd/e3v2/proui/bedlevel_tools.h
index 2e9b66aa30d..7bd236760ae 100644
--- a/Marlin/src/lcd/e3v2/proui/bedlevel_tools.h
+++ b/Marlin/src/lcd/e3v2/proui/bedlevel_tools.h
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/src/lcd/extui/mks_ui/SPIFlashStorage.cpp b/Marlin/src/lcd/extui/mks_ui/SPIFlashStorage.cpp
index 43149dc60c5..2c6dda51216 100644
--- a/Marlin/src/lcd/extui/mks_ui/SPIFlashStorage.cpp
+++ b/Marlin/src/lcd/extui/mks_ui/SPIFlashStorage.cpp
@@ -59,7 +59,7 @@ uint32_t SPIFlashStorage::m_startAddress;
       while (index < inputLength && index - count < max && input[index] == pixel)
         index++;
       if (index - count == 1) {
-        /*
+        /**
          * Failed to "replicate" the current pixel. See how many to copy.
          * Avoid a replicate run of only 2-pixels after a literal run. There
          * is no gain in this, and there is a risK of loss if the run after
@@ -68,7 +68,7 @@ uint32_t SPIFlashStorage::m_startAddress;
          */
         while (index < inputLength && index - count < max && (input[index] != input[index - 1] || (index > 1 && input[index] != input[index - 2])))
           index++;
-        /*
+        /**
          * Check why this run stopped. If it found two identical pixels, reset
          * the index so we can add a run. Do this twice: the previous run
          * tried to detect a replicate run of at least 3 pixels. So we may be
diff --git a/Marlin/src/lcd/tft/tft_string.h b/Marlin/src/lcd/tft/tft_string.h
index 1284d282f13..420a3cc2b55 100644
--- a/Marlin/src/lcd/tft/tft_string.h
+++ b/Marlin/src/lcd/tft/tft_string.h
@@ -27,7 +27,7 @@
 
 #define NO_GLYPH  0xFF
 
-/*
+/**
  * Marlin fonts with optional antialiasing. Fonts use unifont_t font header and glyph_t glyphs headers.
  * Number of glyphs (fontEndEncoding - fontStartEncoding) can not exceed 256 (TBD).
  * Some glyphs may be left undefined with NO_GLYPH
@@ -37,7 +37,7 @@
 #define FONT_MARLIN_GLYPHS_2BPP 0x82
 #define FONT_MARLIN_GLYPHS_4BPP 0x84
 
-/*
+/**
  * TFT fonts with optional antialiasing. Fonts use unifont_t font header and uniglyph_t glyphs headers.
  * Each glyph is prepended with its unicode.
  * Designed to be used for Japanese, Korean, Simplified Chinese and Traditional Chinese glyphs.
diff --git a/Marlin/src/module/stepper.cpp b/Marlin/src/module/stepper.cpp
index 6133b6e39b0..d1c8eef69c0 100644
--- a/Marlin/src/module/stepper.cpp
+++ b/Marlin/src/module/stepper.cpp
@@ -2411,7 +2411,7 @@ hal_timer_t Stepper::block_phase_isr() {
           }
         #endif // LIN_ADVANCE
 
-        /*
+        /**
          * Adjust Laser Power - Decelerating
          * trap_ramp_entry_decr - holds the precalculated value to decrease the current power per decel step.
          */
diff --git a/Marlin/src/module/thermistor/thermistor_666.h b/Marlin/src/module/thermistor/thermistor_666.h
index bba3e606fc0..14a03c23b5b 100644
--- a/Marlin/src/module/thermistor/thermistor_666.h
+++ b/Marlin/src/module/thermistor/thermistor_666.h
@@ -27,7 +27,7 @@
  */
 //#include "output_table.h"
 
-/*
+/**
  * Parameters:
  * A: -0.000480634
  * B: 0.00031362
diff --git a/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h b/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h
index 02daab3e63a..18c8e22dff9 100644
--- a/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h
+++ b/Marlin/src/pins/stm32f1/pins_CHITU3D_V6.h
@@ -39,7 +39,7 @@
 
 #include "pins_CHITU3D_common.h"
 
-/*
+/**
  * Circuit diagram https://github.com/MarlinFirmware/Marlin/files/3401484/x5sa-main_board-2.pdf
  *
  * Details on the 30 pin ribbon pins. From: https://3dtoday.ru/blogs/artem-sr/tronxy-x5sa-pro-ustanovka-bfp-touch-na-board-chitu3d-v6-cxy-v6-191017