Lab2A Sudong Wang work with Sizhe Ma, Ying Xu

README.md

@@ -3,7 +3,45 @@ University of Pennsylvania, ESE 5190: Intro to Embedded Systems, Lab 2A
     (TODO) YOUR NAME HERE
         (TODO) LinkedIn, personal website, twitter, etc.
     Tested on: (TODO) MacBook Pro (14-inch, 2021), macOS Monterey 12.5.1
+    (TODO) Sudong wang
+        (TODO) [email protected]
+    Tested on: (TODO) Dell XPS 13
 
 (TODO: Your README)
+# lab write up
+# 3.2  Annotated code 
+![4f6a6353263aae223d7f1a7b952589a](https://user-images.githubusercontent.com/113209201/196401858-9d49b5d2-d75b-4555-83e9-dd48ee00708b.jpg)
+![e76ba3b023e2d75f51e35df7dfe73ed](https://user-images.githubusercontent.com/113209201/196401872-2410786e-a759-4217-b8df-131a59af1992.jpg)
+![6dcad8c06a34ab0f9de09fcd8f404be](https://user-images.githubusercontent.com/113209201/196401891-1d751f45-0a97-4840-8b6f-ace2a364ba9d.jpg)
+![b3fc9b2fb08b10bcead345cc93b7ded](https://user-images.githubusercontent.com/113209201/196402867-bc67871a-0168-4371-ba8c-b1f675ff928a.jpg)
 
-Include lab questions, screenshots, analysis, etc. (Remember, this is public, so don't put anything here you don't want to share with the world.)
+# 3.4 spread sheet
+![4b79b4945d25a41980f3ab08dcce67b](https://user-images.githubusercontent.com/113209201/196401935-fe56020e-141b-4546-9d0b-01a89f85f93f.jpg)
+
+# 3.5 paper model
+![fc7efd4dfa9325e9d917fdd74714d2c](https://user-images.githubusercontent.com/113209201/196401975-1db43aea-cd58-411d-a7ab-7a4503680296.jpg)
+![f7c56668b91fc16e9577ff7c5d8541d](https://user-images.githubusercontent.com/113209201/196402005-6227246c-9303-4a68-a4ce-9b9c79d3a583.jpg)
+
+
+# decision we made
+Before the modeling, I am not confident with the coding, so we look up to the datasheet and find out the meaning of each line of coding. Finally, we choose green as the color as do the following modeling. The code we use is below:
+https://github.com/sudong-wang/ese5190-2022-lab2-into-the-void-star/blob/main/code(2).txt
+
+# 3.6 transmission spreadsheet & 3.7 time diagram
+![a22b48994d02aeb2971234b711fa02b](https://user-images.githubusercontent.com/113209201/196409415-258fef86-8e38-4abe-903b-32fd86d52118.jpg)
+
+
+
+# part 4
+![WeChat_20221018033724 (1)](https://user-images.githubusercontent.com/113209201/196409324-724e298f-e7f4-401a-8444-a17e7222ec19.gif)
+The code:
+
+https://github.com/sudong-wang/ese5190-2022-lab2-into-the-void-star/tree/main/p4
+# Feedback
+
+# Reflection on Tools
+The paper is easy to use but time consuming, and the spread sheet is clear to use though it is hard to learn. I would personally use coding to make the timing diagram, though it may not be easy to configure. 
+
+# Comments
+Junpeng Zhao's work help us with problem 3.7
+Also, it would be better if we are given the lab ahead of time each week, and it is great that the lab introduction is thorough and considerate, it is also a little long to read and hard to find what we need to do.  

code(2).txt

@@ -0,0 +1,135 @@
+/**
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdio.h>  // standard c library
+#include <stdlib.h> // standard c library
+
+#include "pico/stdlib.h" // standard c librarry from pico
+#include "hardware/pio.h" // chip specific library
+#include "hardware/clocks.h" // chip specific library
+#include "ws2812.pio.h"  //Autogenerated library from pioasm
+
+#define IS_RGBW true //RGB input
+#define NUM_PIXELS 150 //Number of Ws2812
+
+#ifdef PICO_DEFAULT_WS2812_PIN //default signal pin of the LED
+#define WS2812_PIN PICO_DEFAULT_WS2812_PIN // default signal pin of LED
+#else
+// default to pin 2 if the board doesn't have a default WS2812 pin defined
+#define WS2812_PIN 2
+#endif
+
+static inline void put_pixel(uint32_t pixel_grb) { //wait for FIFO
+    pio_sm_put_blocking(pio0, 0, pixel_grb << 8u);
+}
+
+static inline uint32_t urgb_u32(uint8_t r, uint8_t g, uint8_t b) { // convert RGB to GRB
+    return
+            ((uint32_t) (r) << 8) |
+            ((uint32_t) (g) << 16) |
+            (uint32_t) (b);
+}
+
+void pattern_snakes(uint len, uint t) { // create a flashing mode called snakes
+    for (uint i = 0; i < len; ++i) {
+        uint x = (i + (t >> 1)) % 64;
+        if (x < 10)
+            put_pixel(urgb_u32(0xff, 0, 0));
+        else if (x >= 15 && x < 25)
+            put_pixel(urgb_u32(0, 0xff, 0));
+        else if (x >= 30 && x < 40)
+            put_pixel(urgb_u32(0, 0, 0xff));
+        else
+            put_pixel(0);
+    }
+}
+
+void pattern_random(uint len, uint t) { // create a flashing mode called random
+    if (t % 8)
+        return;
+    for (int i = 0; i < len; ++i)
+        put_pixel(rand());
+}
+
+void pattern_sparkle(uint len, uint t) { // create a flashing mode called sparkle
+    if (t % 8)
+        return;
+    for (int i = 0; i < len; ++i)
+        put_pixel(rand() % 16 ? 0 : 0xffffffff);
+}
+
+void pattern_greys(uint len, uint t) { // create a flashing mode called greys
+    int max = 100; // let's not draw too much current!
+    t %= max;
+    for (int i = 0; i < len; ++i) {
+        put_pixel(t * 0x10101);
+        if (++t >= max) t = 0;
+    }
+}
+
+typedef void (*pattern)(uint len, uint t);
+const struct {
+    pattern pat;
+    const char *name;
+} pattern_table[] = {
+        {pattern_snakes,  "Snakes!"},
+        {pattern_random,  "Random data"},
+        {pattern_sparkle, "Sparkles"},
+        {pattern_greys,   "Greys"},
+};
+
+// int main() {
+//     //set_sys_clock_48();
+//     stdio_init_all(); // initialize the board
+//     printf("WS2812 Smoke Test, using pin %d", WS2812_PIN); //print the pin number of LED
+
+//     // todo get free sm
+//     PIO pio = pio0; // select Pio module number
+//     int sm = 0; // select state machine number
+//     uint offset = pio_add_program(pio, &ws2812_program);
+
+//     ws2812_program_init(pio, sm, offset, WS2812_PIN, 800000, IS_RGBW);
+
+//     int t = 0;      // Let different modes cycle
+//     while (1) {
+//         for(int i=0;i<=220;i=i+4){
+//             printf("address:%08x,%08x/n",(int*)(0x50200000+i),*((int*)0x5020000+i));
+//         }
+//         int pat = rand() % count_of(pattern_table);
+//         int dir = (rand() >> 30) & 1 ? 1 : -1;
+//         puts(pattern_table[pat].name);
+//         puts(dir == 1 ? "(forward)" : "(backward)");
+//         for (int i = 0; i < 1000; ++i) {
+//             pattern_table[pat].pat(NUM_PIXELS, t);
+//             sleep_ms(10);
+//             t += dir;
+//         }
+//     }
+//     sleep_ms (10000);
+// }
+
+// print the value of the register
+int main(){
+    uint32_t grb = 0x00FF00; //blue
+    int *rgtr = 0x50200000;
+    PIO pio = pio0; // select Pio module number
+    int sm = 0; // select state machine number
+    uint offset = pio_add_program(pio, &ws2812_program);
+    while (1)
+    {
+        stdio_init_all();
+        printf("the value of registers used in PIO 0 \n");
+        ws2812_program_init(pio, sm, offset, WS2812_PIN, 800000, IS_RGBW);
+        // put_pixel(grb);
+        for (int i = 0; i < 81; i++)
+        {
+            printf("%08x, \tvalue = %08x \n", rgtr+i, *(rgtr+i));
+        }
+        sleep_ms(5000);
+    }
+
+    return 0;
+}

p4/CMakeLists.txt

@@ -0,0 +1,33 @@
+cmake_minimum_required(VERSION 3.12)
+
+# Pull in SDK (must be before project)
+include(pico_sdk_import.cmake)
+
+project(pico_examples C CXX ASM)
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+
+if (PICO_SDK_VERSION_STRING VERSION_LESS "1.3.0")
+    message(FATAL_ERROR "Raspberry Pi Pico SDK version 1.3.0 (or later) required. Your version is ${PICO_SDK_VERSION_STRING}")
+endif()
+
+set(PICO_EXAMPLES_PATH ${PROJECT_SOURCE_DIR})
+
+# Initialize the SDK
+pico_sdk_init()
+
+include(example_auto_set_url.cmake)
+# Add blink example
+# add_subdirectory(blink)
+
+# Add hello world example
+# add_subdirectory(hello_world)
+
+add_compile_options(-Wall
+        -Wno-format          # int != int32_t as far as the compiler is concerned because gcc has int32_t as long int
+        -Wno-unused-function # we have some for the docs that aren't called
+        -Wno-maybe-uninitialized
+        )
+
+# Hardware-specific examples in subdirectories:
+add_subdirectory(pio)

p4/cmake/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(build_variants)

p4/cmake/build_variants/CMakeLists.txt

@@ -0,0 +1,37 @@
+# 1 Create an INTERFACE library aggregating all the common parts of the application
+add_library(common_stuff INTERFACE)
+
+# note cmake policy is to use absolute paths for interface libraries.
+target_sources(common_stuff INTERFACE
+        ${CMAKE_CURRENT_LIST_DIR}/main.c
+        ${CMAKE_CURRENT_LIST_DIR}/other.c
+        )
+
+target_compile_definitions(common_stuff INTERFACE
+        A_DEFINE_THAT_IS_SHARED=123
+        )
+
+# can include library dependencies here
+target_link_libraries(common_stuff INTERFACE
+        pico_stdlib
+        )
+
+# 2 Create the first executable including all the common stuff...
+#    we can set compile definitions for this executable here too. Because
+#    we depend on an INTERFACE library (common_stuff) we
+#    will pick up all of its definitions/dependencies too
+add_executable(build_variant1)
+target_link_libraries(build_variant1 common_stuff)
+target_compile_definitions(build_variant1 PRIVATE
+        A_DEFINE_THAT_IS_NOT_SHARED=456)
+pico_add_extra_outputs(build_variant1)
+
+# 3 Create a second executable including all the common stuff
+#    this version also sets the DO_EXTRA define
+add_executable(build_variant2)
+target_link_libraries(build_variant2 common_stuff)
+target_compile_definitions(build_variant2 PRIVATE
+        A_DEFINE_THAT_IS_NOT_SHARED=789
+        DO_EXTRA)
+pico_add_extra_outputs(build_variant2)
+

p4/cmake/build_variants/main.c

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdio.h>
+#include "pico/stdlib.h"
+#include "other.h"
+
+int main() {
+    stdio_init_all();
+    do_other();
+#ifdef DO_EXTRA
+    printf("A little extra\n");
+#endif
+    return 0;
+}

p4/cmake/build_variants/other.c

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdio.h>
+#include "other.h"
+
+void do_other() {
+    printf("The common thing is %d\n",
+           A_DEFINE_THAT_IS_SHARED);
+    printf("The binary local thing is %d\n",
+           A_DEFINE_THAT_IS_NOT_SHARED);
+}

p4/cmake/build_variants/other.h

@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+void do_other();

p4/example_auto_set_url.cmake

@@ -0,0 +1,5 @@
+set(PICO_EXAMPLE_URL_BASE "https://github.com/raspberrypi/pico-examples/tree/HEAD")
+macro(example_auto_set_url TARGET)
+    file(RELATIVE_PATH URL_REL_PATH "${PICO_EXAMPLES_PATH}" "${CMAKE_CURRENT_LIST_DIR}")
+    pico_set_program_url(${TARGET} "${PICO_EXAMPLE_URL_BASE}/${URL_REL_PATH}")
+endmacro()

p4/pico_sdk_import.cmake

@@ -0,0 +1,73 @@
+# 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 "${CMAKE_SOURCE_DIR}")
+        endif ()
+        # GIT_SUBMODULES_RECURSE was added in 3.17
+        if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.17.0")
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG master
+                    GIT_SUBMODULES_RECURSE FALSE
+            )
+        else ()
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG master
+            )
+        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})