From 595dd8a30eca7c0e56554a178cd818b50a13eff5 Mon Sep 17 00:00:00 2001 From: Jeroen Stroeve Date: Mon, 19 Aug 2024 19:47:31 +0200 Subject: [PATCH] Add verify/reset EEPROM code --- reset_eeprom/.gitignore | 5 ++ reset_eeprom/.vscode/extensions.json | 10 ++++ reset_eeprom/include/README | 39 ++++++++++++++ reset_eeprom/lib/README | 46 ++++++++++++++++ reset_eeprom/platformio.ini | 18 +++++++ reset_eeprom/src/main.cpp | 78 ++++++++++++++++++++++++++++ reset_eeprom/test/README | 11 ++++ 7 files changed, 207 insertions(+) create mode 100644 reset_eeprom/.gitignore create mode 100644 reset_eeprom/.vscode/extensions.json create mode 100644 reset_eeprom/include/README create mode 100644 reset_eeprom/lib/README create mode 100644 reset_eeprom/platformio.ini create mode 100644 reset_eeprom/src/main.cpp create mode 100644 reset_eeprom/test/README diff --git a/reset_eeprom/.gitignore b/reset_eeprom/.gitignore new file mode 100644 index 0000000..89cc49c --- /dev/null +++ b/reset_eeprom/.gitignore @@ -0,0 +1,5 @@ +.pio +.vscode/.browse.c_cpp.db* +.vscode/c_cpp_properties.json +.vscode/launch.json +.vscode/ipch diff --git a/reset_eeprom/.vscode/extensions.json b/reset_eeprom/.vscode/extensions.json new file mode 100644 index 0000000..080e70d --- /dev/null +++ b/reset_eeprom/.vscode/extensions.json @@ -0,0 +1,10 @@ +{ + // See http://go.microsoft.com/fwlink/?LinkId=827846 + // for the documentation about the extensions.json format + "recommendations": [ + "platformio.platformio-ide" + ], + "unwantedRecommendations": [ + "ms-vscode.cpptools-extension-pack" + ] +} diff --git a/reset_eeprom/include/README b/reset_eeprom/include/README new file mode 100644 index 0000000..45496b1 --- /dev/null +++ b/reset_eeprom/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/reset_eeprom/lib/README b/reset_eeprom/lib/README new file mode 100644 index 0000000..8c9c29c --- /dev/null +++ b/reset_eeprom/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/reset_eeprom/platformio.ini b/reset_eeprom/platformio.ini new file mode 100644 index 0000000..176ed79 --- /dev/null +++ b/reset_eeprom/platformio.ini @@ -0,0 +1,18 @@ +; 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:nanoatmega328] +platform = atmelavr +board = nanoatmega328new +framework = arduino + +lib_deps = + +monitor_speed = 115200 diff --git a/reset_eeprom/src/main.cpp b/reset_eeprom/src/main.cpp new file mode 100644 index 0000000..1f74652 --- /dev/null +++ b/reset_eeprom/src/main.cpp @@ -0,0 +1,78 @@ +/* + * EEPROM Clear + * + * Sets all of the bytes of the EEPROM to 0. + * Please see eeprom_iteration for a more in depth + * look at how to traverse the EEPROM. + * + * This example code is in the public domain. + */ + +#include "Arduino.h" +//#include +#include "Wire.h" + +#define EEPROMDEVICEADDRESS 0x50 +#define EEPROMSIZE 2048 + + +void writeEEPROM(unsigned int eeaddress, byte data ) +{ + Wire.beginTransmission(EEPROMDEVICEADDRESS); + Wire.write((int)(eeaddress >> 8)); // MSB + Wire.write((int)(eeaddress & 0xFF)); // LSB + Wire.write(data); + Wire.endTransmission(); + + delay(5); +} + +byte readEEPROM(unsigned int eeaddress ) +{ + byte rdata = 0xFF; + + Wire.beginTransmission(EEPROMDEVICEADDRESS); + Wire.write((int)(eeaddress >> 8)); // MSB + Wire.write((int)(eeaddress & 0xFF)); // LSB + Wire.endTransmission(); + + Wire.requestFrom(EEPROMDEVICEADDRESS,1); + + if (Wire.available()) rdata = Wire.read(); + + return rdata; +} + +void setup() { + // initialize the LED pin as an output. + pinMode(13, OUTPUT); + Serial.begin(115200); + + /*** + Iterate through each byte of the EEPROM storage. + Larger AVR processors have larger EEPROM sizes, E.g: + - Arduino Duemilanove: 512 B EEPROM storage. + - Arduino Uno: 1 kB EEPROM storage. + - Arduino Mega: 4 kB EEPROM storage. + Rather than hard-coding the length, you should use the pre-provided length function. + This will make your code portable to all AVR processors. + ***/ + + delay(1000); + Serial.println("BEGIN"); + + for (int i = 0 ; i < EEPROMSIZE ; i++) { + // writeEEPROM(i, 0xFF); + Serial.print(readEEPROM(i),HEX); + } + + // turn the LED on when we're done + digitalWrite(13, HIGH); + + Serial.println(""); + Serial.println("END"); +} + +void loop() { + /** Empty loop. **/ +} \ No newline at end of file diff --git a/reset_eeprom/test/README b/reset_eeprom/test/README new file mode 100644 index 0000000..e7d1588 --- /dev/null +++ b/reset_eeprom/test/README @@ -0,0 +1,11 @@ + +This directory is intended for PlatformIO Unit Testing 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/page/plus/unit-testing.html