Add GPLv3 License

.gitignore

@@ -0,0 +1,8 @@
+# Ignore list for the project
+**/.vscode/.browse.c_cpp.db*
+**/.vscode/c_cpp_properties.json
+**/.vscode/launch.json
+**/build/**
+
+# Except the following files
+!*.uf2

pico_sdk_sigrok/CMakeLists.txt

@@ -1,14 +1,31 @@
+# == DO NOT EDIT THE FOLLOWING LINES for the Raspberry Pi Pico VS Code Extension to work ==
+if(WIN32)
+    set(USERHOME $ENV{USERPROFILE})
+else()
+    set(USERHOME $ENV{HOME})
+endif()
+set(sdkVersion 2.1.0)
+set(toolchainVersion 13_3_Rel1)
+set(picotoolVersion 2.1.0)
+set(picoVscode ${USERHOME}/.pico-sdk/cmake/pico-vscode.cmake)
+if (EXISTS ${picoVscode})
+    include(${picoVscode})
+endif()
+# ====================================================================================
+set(PICO_BOARD pico CACHE STRING "Board type")
+
 cmake_minimum_required(VERSION 3.13)
 
 include(pico_sdk_import.cmake)
 
-project(test_project C CXX ASM)
+project(pico_sdk_sigrok C CXX ASM)
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_CXX_STANDARD 17)
 pico_sdk_init()
 
 add_executable(pico_sdk_sigrok
   pico_sdk_sigrok.c
+  sr_device.c
 )
 
 pico_enable_stdio_usb(pico_sdk_sigrok 1)

pico_sdk_sigrok/pico_sdk_import.cmake

@@ -0,0 +1,84 @@
+# 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 ()
+
+if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_TAG} AND (NOT PICO_SDK_FETCH_FROM_GIT_TAG))
+    set(PICO_SDK_FETCH_FROM_GIT_TAG $ENV{PICO_SDK_FETCH_FROM_GIT_TAG})
+    message("Using PICO_SDK_FETCH_FROM_GIT_TAG from environment ('${PICO_SDK_FETCH_FROM_GIT_TAG}')")
+endif ()
+
+if (PICO_SDK_FETCH_FROM_GIT AND NOT PICO_SDK_FETCH_FROM_GIT_TAG)
+  set(PICO_SDK_FETCH_FROM_GIT_TAG "master")
+  message("Using master as default value for PICO_SDK_FETCH_FROM_GIT_TAG")
+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 "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK")
+set(PICO_SDK_FETCH_FROM_GIT_TAG "${PICO_SDK_FETCH_FROM_GIT_TAG}" CACHE FILEPATH "release tag for 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 "${CMAKE_SOURCE_DIR}")
+        endif ()
+        # GIT_SUBMODULES_RECURSE was added in 3.17
+        if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.17.0")
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG ${PICO_SDK_FETCH_FROM_GIT_TAG}
+                    GIT_SUBMODULES_RECURSE FALSE
+            )
+        else ()
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG ${PICO_SDK_FETCH_FROM_GIT_TAG}
+            )
+        endif ()
+
+        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})

pico_sdk_sigrok/pico_sdk_sigrok.c

@@ -8,31 +8,26 @@
 
 #include <stdio.h>
 #include "pico/stdlib.h" //uart definitions
-#include <stdlib.h> //atoi,atol
+#include <stdlib.h> //atoi,atol, malloc
 #include "hardware/gpio.h"
-//Note: Hardware libraries must be added to CMakelists.txt
 #include "hardware/pio.h"
 #include "hardware/adc.h"
 #include "hardware/dma.h"
 #include "hardware/structs/bus_ctrl.h"
-#include "hardware/structs/pwm.h"
-#include "hardware/sync.h" //wev
-#include "pico/binary_info.h"
-#include "stdarg.h"
-#include "pico/multicore.h"
-#include <string.h>
-#include "sr_device.h"
+#include "hardware/uart.h"
 #include "hardware/clocks.h"
+#include "pico/multicore.h"
 #include "tusb.h"//.tud_cdc_write...
 
+#include "sr_device.h"
+
 //NODMA is a debug mode that disables the DMA engine and prints raw PIO FIFO outputs
 //it is limited to testing a small number of samples equal to the PIO FIFO depths
 //#define NODMA 1
 //These two enable debug print outs of D4 generation, D4_DBG2 are consider higher verbosity
 //#define D4_DBG 1
 //#define D4_DBG2 2
 
-
 uint8_t *capture_buf;
 volatile uint32_t c1cnt=0;
 volatile uint32_t c0cnt=0;
@@ -684,7 +679,7 @@ int main(){
     uint64_t starttime,endtime;
     set_sys_clock_khz(SYS_CLK_BASE,true);
     stdio_usb_init();
-    uart_set_format(uart0,8,1,1);
+    uart_set_format(uart0,8,1,0);
     uart_init(uart0,921600);
     gpio_set_function(0, GPIO_FUNC_UART);
     gpio_set_function(1, GPIO_FUNC_UART);