Added bootloader flashing doc

Author: Adityya-K

docs/astro.config.mjs

@@ -14,6 +14,16 @@ export default defineConfig({
       expressiveCode: {
         themes: ['github-light-high-contrast', 'tokyo-night'],
         removeUnusedThemes: true,
+        styleOverrides: {
+          // You can also override styles
+          borderRadius: '0.5rem',
+          borderColor: ['gray', 'black'],
+          frames: {
+            terminalTitlebarBackground: ['#414868', 'lightGray'],
+            terminalTitlebarBorderBottomColor: ['gray', 'black'],
+            terminalTitlebarDotsOpacity: '0.5',
+          }
+        },
       },
 			title: 'UW Orbital',
 			social: [{ icon: 'github', label: 'GitHub', href: 'https://github.com/UWOrbital/OBC-firmware' }],

docs/src/content/docs/getting-started/build-obc.md

@@ -39,6 +39,25 @@ There are two main ways to flash to the OBC: **using the bootloader** or **using
     :::note
     UniFlash may get stuck sometimes and throw errors. In such cases, navigate to session on the top red bar and start a new session. You will have to reconfigure UniFlash but it should get working again.
     :::
+
+### Accessing UART
+This is an important type of confi
 ### Flashing Via the Bootloader (WIP)
-1. Use UniFlash to flash the `OBC-bl.out` file, ensuring you have built it for the correct board.
+1. Use UniFlash to flash the `OBC-bl.out` file, ensuring you have built it for the correct board using the right argument for the `-DBOARD_TYPE=` option.
+2. From the root directory activate the python virtual environment with the following command
 
+    ```shell
+    source venv/bin/activate
+    ```
+3. Navigate to the `obc/tools/python/` directory from root...
+    ```shell
+    cd obc/tools/python/
+    ```
+4. Run the app `app_update.py` script specifying a usb port and the absolute file path. The following is an example for linux.
+    ```shell
+    python3 app_update.py /dev/ttyS0 ~/Desktop/dev/OBC-firmware/build_arm/OBC-firmware.bin
+    ```
+    :::note
+    The bootloader sends messages through the UART port so if the first string that the script displays is not 'Erase Successful' or the script is takes more than 1 second to start, re-run the script.
+    :::
+5. Wait for the script to flash and the board should jump to app within 2 seconds of when flashing is completed. If not check the error that is being logged to UART and try again!

docs/src/styles/custom.css

@@ -552,16 +552,6 @@
       border-inline-start-width: 1px;
     }
 
-    .expressive-code {
-      .has-title {
-        --ec-uiPadBlk: 0.375rem;
-      }
-
-      .frame.is-terminal .header {
-        border-bottom: 1px solid var(--sl-rapide-ui-border-color);
-        background-color: var(--sl-color-blue-low)
-      }
-    }
   }
 
   /**