Tag: embedded

Importing modules in embedded python

Advertisements I’m trying to get module imports to work in embeddable python, but it doesn’t want to work C:\Users\test\Desktop\winpy\python-3.10.10-embed-win32>type run_scripts\script.py from module_test import test print("Hello world!") print(test()) C:\Users\test\Desktop\winpy\python-3.10.10-embed-win32>type run_scripts\module_test.py def test(): return "Test!" C:\Users\test\Desktop\winpy\python-3.10.10-embed-win32>@python.exe run_scripts\script.py Traceback (most recent call last): File "C:\Users\test\Desktop\winpy\python-3.10.10-embed-win32\run_scripts\script.py", line 1, in <module> from module_test import test ModuleNotFoundError: No module named ‘module_test’… Read More Importing modules in embedded python

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How can C allocate memory without an OS? (Cases where OS is written in C)

Advertisements I am following a course where we are writing an OS on a microcontroller. The OS is written in C and the instructor initializes stack spaces for each thread in the following way. int32_t TCB_STACK[NUM_OF_THREADS][STACK_SIZE]; How can the memory be allocated if there isn’t any OS already running to service this in the first… Read More How can C allocate memory without an OS? (Cases where OS is written in C)

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How to add an image to desktop notification using plyer (PYTHON)

Advertisements How can I add an image to this message iteself (not change the icon)?: from plyer import notification notification.notify( title = ‘testing’, message = ”, app_icon = None, app_name = ‘Notifications’, timeout = 10, ) >Solution : Unfortunately Plyer does not offer to show images in the notification besides an icon. See How to… Read More How to add an image to desktop notification using plyer (PYTHON)

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How do I correctly destruct a derived object that was constructed using placement new

Advertisements Say we have a C++ program with this sort of class inheritance: class A { public: virtual ~A() {/* … */} }; class B : public A { public: virtual ~B() {/* … */} }; class C : public A { public: virtual ~C() {/* … */} }; And furthermore, there are specialized memory… Read More How do I correctly destruct a derived object that was constructed using placement new

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indexing an element from a volatile struct doesn't work in C++

Advertisements I have this code: typedef struct { int test; } SensorData_t; volatile SensorData_t sensorData[10]; SensorData_t getNextSensorData(int i) { SensorData_t data = sensorData[i]; return data; } int main(int argc, char** argv) { } It compiles with gcc version 8.3, but not with g++. Error message: main.c: In function ‘SensorData_t getNextSensorData(int)’: main.c:8:34: error: no matching function… Read More indexing an element from a volatile struct doesn't work in C++

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Can I initialize a std::array<uint8_t with a string literal?

Advertisements I write a lot of C code interacting with instruments using UART serial ports. I’m starting a new project where I’m trying to use a more object oriented approach with C++. Here’s how I’ve defined and sent commands in the past using C. uint8_t pubx04Cmd[] = "$PUBX,04*37\r\n"; HAL_UART_Transmit(&hUART1, pubx04Cmd, sizeof(pubx04Cmd), 5000); Which is pretty… Read More Can I initialize a std::array<uint8_t with a string literal?

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