From 695e25eef319ecb1391dfc3efffb41629db95893 Mon Sep 17 00:00:00 2001 From: jmgiacalone Date: Fri, 5 Jan 2024 20:14:59 +0000 Subject: [PATCH] Scan working. --- .gitignore | 2 ++ include/README | 39 ++++++++++++++++++++++++++++ lib/README | 46 +++++++++++++++++++++++++++++++++ platformio.ini | 15 +++++++++++ src/main.cpp | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++ test/README | 11 ++++++++ 6 files changed, 182 insertions(+) create mode 100644 .gitignore create mode 100644 include/README create mode 100644 lib/README create mode 100644 platformio.ini create mode 100644 src/main.cpp create mode 100644 test/README diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..2089f94 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +.pio +.vscode/* diff --git a/include/README b/include/README new file mode 100644 index 0000000..194dcd4 --- /dev/null +++ b/include/README @@ -0,0 +1,39 @@ + +This directory is intended for project header files. + +A header file is a file containing C declarations and macro definitions +to be shared between several project source files. You request the use of a +header file in your project source file (C, C++, etc) located in `src` folder +by including it, with the C preprocessing directive `#include'. + +```src/main.c + +#include "header.h" + +int main (void) +{ + ... +} +``` + +Including a header file produces the same results as copying the header file +into each source file that needs it. Such copying would be time-consuming +and error-prone. With a header file, the related declarations appear +in only one place. If they need to be changed, they can be changed in one +place, and programs that include the header file will automatically use the +new version when next recompiled. The header file eliminates the labor of +finding and changing all the copies as well as the risk that a failure to +find one copy will result in inconsistencies within a program. + +In C, the usual convention is to give header files names that end with `.h'. +It is most portable to use only letters, digits, dashes, and underscores in +header file names, and at most one dot. + +Read more about using header files in official GCC documentation: + +* Include Syntax +* Include Operation +* Once-Only Headers +* Computed Includes + +https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html diff --git a/lib/README b/lib/README new file mode 100644 index 0000000..6debab1 --- /dev/null +++ b/lib/README @@ -0,0 +1,46 @@ + +This directory is intended for project specific (private) libraries. +PlatformIO will compile them to static libraries and link into executable file. + +The source code of each library should be placed in a an own separate directory +("lib/your_library_name/[here are source files]"). + +For example, see a structure of the following two libraries `Foo` and `Bar`: + +|--lib +| | +| |--Bar +| | |--docs +| | |--examples +| | |--src +| | |- Bar.c +| | |- Bar.h +| | |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html +| | +| |--Foo +| | |- Foo.c +| | |- Foo.h +| | +| |- README --> THIS FILE +| +|- platformio.ini +|--src + |- main.c + +and a contents of `src/main.c`: +``` +#include +#include + +int main (void) +{ + ... +} + +``` + +PlatformIO Library Dependency Finder will find automatically dependent +libraries scanning project source files. + +More information about PlatformIO Library Dependency Finder +- https://docs.platformio.org/page/librarymanager/ldf.html diff --git a/platformio.ini b/platformio.ini new file mode 100644 index 0000000..09db0d2 --- /dev/null +++ b/platformio.ini @@ -0,0 +1,15 @@ +; PlatformIO Project Configuration File +; +; Build options: build flags, source filter +; Upload options: custom upload port, speed and extra flags +; Library options: dependencies, extra library storages +; Advanced options: extra scripting +; +; Please visit documentation for the other options and examples +; https://docs.platformio.org/page/projectconf.html + +[env:mzeroproUSB] +platform = atmelsam +board = mzeroproUSB +framework = arduino +monitor_speed = 115200 diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..500d634 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,69 @@ +#include +#include + +void portScan(); +void magwhoami(); + +void setup() { + SerialUSB.begin(115200); + Wire.begin(); + delay(2000); + portScan(); + magwhoami(); + +} + +void loop() { + +} + +void portScan(){ +byte error, address; + int nDevices; + + SerialUSB.println("Scanning..."); + + nDevices = 0; + for(address = 1; address < 127; address++ ) + { + // The i2c_scanner uses the return value of + // the Write.endTransmisstion to see if + // a device did acknowledge to the address. + Wire.beginTransmission(address); + error = Wire.endTransmission(); + + if (error == 0) + { + SerialUSB.print("I2C device found at address 0x"); + if (address<16) + SerialUSB.print("0"); + SerialUSB.print(address,HEX); + SerialUSB.println(" !"); + + nDevices++; + } + else if (error==4) + { + SerialUSB.print("Unknown error at address 0x"); + if (address<16) + SerialUSB.print("0"); + SerialUSB.println(address,HEX); + } + } + if (nDevices == 0) + SerialUSB.println("No I2C devices found\n"); + else + SerialUSB.println("done\n"); + +} + +void magwhoami(){ + Wire.beginTransmission(0x30); + Wire.write(0x39); + Wire.endTransmission(); + + Wire.requestFrom(0x30, 1); + if (Wire.available()){ + SerialUSB.println(Wire.read()); + } +} diff --git a/test/README b/test/README new file mode 100644 index 0000000..9b1e87b --- /dev/null +++ b/test/README @@ -0,0 +1,11 @@ + +This directory is intended for PlatformIO Test Runner and project tests. + +Unit Testing is a software testing method by which individual units of +source code, sets of one or more MCU program modules together with associated +control data, usage procedures, and operating procedures, are tested to +determine whether they are fit for use. Unit testing finds problems early +in the development cycle. + +More information about PlatformIO Unit Testing: +- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html