initial commit

.gitignore

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+build/

.vscode/c_cpp_properties.json

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+{
+  "configurations": [
+    {
+      "name": "Linux",
+      "includePath": [
+        "${workspaceFolder}/**",
+        "${env:PICO_SDK_PATH}/**"
+      ],
+      "defines": [],
+      "compilerPath": "/usr/bin/arm-none-eabi-gcc",
+      "cStandard": "gnu17",
+      "cppStandard": "gnu++14",
+      "intelliSenseMode": "linux-gcc-arm",
+      "configurationProvider" : "ms-vscode.cmake-tools"
+    }
+  ],
+  "version": 4
+}

.vscode/extensions.json

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+{
+  "recommendations": [
+    "marus25.cortex-debug",
+    "ms-vscode.cmake-tools",
+    "ms-vscode.cpptools"
+  ]
+}

.vscode/launch.json

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+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Cortex Debug",
+      "cwd": "${workspaceRoot}",
+      "executable": "${command:cmake.launchTargetPath}",
+      "request": "launch",
+      "type": "cortex-debug",
+      "servertype": "openocd",
+      "gdbPath": "gdb-multiarch",
+      "device": "RP2040",
+      "configFiles": [
+        "interface/raspberrypi-swd.cfg",
+        "target/rp2040.cfg"
+        ],
+      "svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
+      "runToMain": true,
+      // Give restart the same functionality as runToMain
+      "postRestartCommands": [
+          "break main",
+          "continue"
+      ]
+    }
+  ]
+}

.vscode/settings.json

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+{
+  "cmake.configureOnOpen": false,
+  "cmake.statusbar.advanced": {
+    "debug" : {
+      "visibility": "hidden"
+              },    "launch" : {
+      "visibility": "hidden"
+               },
+    "build" : {
+      "visibility": "hidden"
+               },
+    "buildTarget" : {
+      "visibility": "hidden"
+               },
+     },
+}

CMakeLists.txt

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+# Generated Cmake Pico project file
+
+cmake_minimum_required(VERSION 3.13)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+
+# initalize pico_sdk from installed location
+# (note this can come from environment, CMake cache etc)
+set(PICO_SDK_PATH "/home/ben/pico/pico-sdk")
+
+# Pull in Raspberry Pi Pico SDK (must be before project)
+include(pico_sdk_import.cmake)
+
+project(PicoVGA C CXX ASM)
+
+# Initialise the Raspberry Pi Pico SDK
+pico_sdk_init()
+
+# Add executable. Default name is the project name, version 0.1
+
+add_executable(PicoVGA PicoVGA.c )
+
+pico_set_program_name(PicoVGA "PicoVGA")
+pico_set_program_version(PicoVGA "0.1")
+
+pico_enable_stdio_uart(PicoVGA 1)
+pico_enable_stdio_usb(PicoVGA 1)
+
+# Add the standard library to the build
+target_link_libraries(PicoVGA pico_stdlib)
+
+pico_add_extra_outputs(PicoVGA)
+

pico_sdk_import.cmake

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+# This is a copy of <PICO_SDK_PATH>/external/pico_sdk_import.cmake
+
+# This can be dropped into an external project to help locate this SDK
+# It should be include()ed prior to project()
+
+if (DEFINED ENV{PICO_SDK_PATH} AND (NOT PICO_SDK_PATH))
+    set(PICO_SDK_PATH $ENV{PICO_SDK_PATH})
+    message("Using PICO_SDK_PATH from environment ('${PICO_SDK_PATH}')")
+endif ()
+
+if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT} AND (NOT PICO_SDK_FETCH_FROM_GIT))
+    set(PICO_SDK_FETCH_FROM_GIT $ENV{PICO_SDK_FETCH_FROM_GIT})
+    message("Using PICO_SDK_FETCH_FROM_GIT from environment ('${PICO_SDK_FETCH_FROM_GIT}')")
+endif ()
+
+if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_PATH} AND (NOT PICO_SDK_FETCH_FROM_GIT_PATH))
+    set(PICO_SDK_FETCH_FROM_GIT_PATH $ENV{PICO_SDK_FETCH_FROM_GIT_PATH})
+    message("Using PICO_SDK_FETCH_FROM_GIT_PATH from environment ('${PICO_SDK_FETCH_FROM_GIT_PATH}')")
+endif ()
+
+set(PICO_SDK_PATH "${PICO_SDK_PATH}" CACHE PATH "Path to the Raspberry Pi Pico SDK")
+set(PICO_SDK_FETCH_FROM_GIT "${PICO_SDK_FETCH_FROM_GIT}" CACHE BOOL "Set to ON to fetch copy of SDK from git if not otherwise locatable")
+set(PICO_SDK_FETCH_FROM_GIT_PATH "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK")
+
+if (NOT PICO_SDK_PATH)
+    if (PICO_SDK_FETCH_FROM_GIT)
+        include(FetchContent)
+        set(FETCHCONTENT_BASE_DIR_SAVE ${FETCHCONTENT_BASE_DIR})
+        if (PICO_SDK_FETCH_FROM_GIT_PATH)
+            get_filename_component(FETCHCONTENT_BASE_DIR "${PICO_SDK_FETCH_FROM_GIT_PATH}" REALPATH BASE_DIR "${CMAKE_SOURCE_DIR}")
+        endif ()
+        FetchContent_Declare(
+                pico_sdk
+                GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                GIT_TAG master
+        )
+        if (NOT pico_sdk)
+            message("Downloading Raspberry Pi Pico SDK")
+            FetchContent_Populate(pico_sdk)
+            set(PICO_SDK_PATH ${pico_sdk_SOURCE_DIR})
+        endif ()
+        set(FETCHCONTENT_BASE_DIR ${FETCHCONTENT_BASE_DIR_SAVE})
+    else ()
+        message(FATAL_ERROR
+                "SDK location was not specified. Please set PICO_SDK_PATH or set PICO_SDK_FETCH_FROM_GIT to on to fetch from git."
+                )
+    endif ()
+endif ()
+
+get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
+if (NOT EXISTS ${PICO_SDK_PATH})
+    message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' not found")
+endif ()
+
+set(PICO_SDK_INIT_CMAKE_FILE ${PICO_SDK_PATH}/pico_sdk_init.cmake)
+if (NOT EXISTS ${PICO_SDK_INIT_CMAKE_FILE})
+    message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' does not appear to contain the Raspberry Pi Pico SDK")
+endif ()
+
+set(PICO_SDK_PATH ${PICO_SDK_PATH} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE)
+
+include(${PICO_SDK_INIT_CMAKE_FILE})

picovga.c

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+#include <stdio.h>
+#include "pico/stdlib.h"
+
+const uint OUTPIN = 1;
+
+int main()
+{
+    stdio_init_all();
+
+    gpio_init(OUTPIN);
+    gpio_set_dir(OUTPIN, 1);
+
+    while (1) 
+    {
+
+        printf("Hello, world!");
+        gpio_put(OUTPIN, 1);
+
+    }
+
+
+    return 0;
+}

vga.txt

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+WHITE - VSYNC
+BLACK - HSYNC
+RED   - VGA_R
+GREEN - VGA_G
+BLUE  - VGA_B