https://embeddedhackster.org/emb-sw daily 0.75 2024-04-05 https://embeddedhackster.org/emb-sw/tdd monthly 0.5 2024-02-21 https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/92d0e2a1-ed63-49d4-8e67-076cc5489e02/Screenshot+2023-06-12+115142.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out You don’t have to include the HAL drivers for this example. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/4adfa6e5-854d-489d-890e-55aa87e3f553/Screenshot+2023-06-14+132158.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/c972e882-7011-420a-b878-381c05fbd0f5/Screenshot+2023-06-12+112349.jpg Embedded Software - Test-Driven Development: The bug killer - Make it stand out Patterns and Practices for Embedded TDD in C and C Byran Wills Heath - YouTube https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/19ff1d0c-b568-4c35-961c-ea796717b412/Screenshot+2023-06-14+123524.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/39db89d2-91cd-46a8-8095-42f542835d2f/NotAScreenshot+2023-06-14+195451.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out This is how your output should look like after completing all the tests https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/9ab016c0-51cf-41c0-b3a3-e67a0be00116/NotAScreenshot+2023-06-14+203101.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/71da42a7-8cf3-4966-b32f-ea7d84859a5e/Screenshot+2023-06-14+183652.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/9f2b52d4-8f3a-41f2-b504-959039cec10f/Screenshot+2023-06-14+184047.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/758303ea-620b-44a3-8f6b-02a5700fc41a/Screenshot+2023-06-11+213008.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/9723ff0c-770a-433c-a66f-106792f1ddc5/Screenshot+2023-06-14+110532.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Our buffer will have this structure https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/f9a9394b-426d-4e21-8b76-a61144b295d7/Screenshot+2023-06-12+124009.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/bf582136-5c48-4eca-a0dc-d3160c844b97/Screenshot+2023-07-07+135616.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out These will be the functionalities to implement https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/656293f0-5fce-4efc-9f67-ac2a1c61e136/Screenshot+2023-06-12+125136.png Embedded Software - Test-Driven Development: The bug killer UNITY_OUTPUT_START() Should initialize the selected comms channel UNITY_OUTPUT_CHAR(c) Should transmit one character through the comms channel UNITY_OUTPUT_FLUSH haven’t implemented, don’t really need it UNITY_OUTPUT_COMPLETE Should end the comms channel https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/13466f5a-912d-4c52-86b3-8b5eea90a315/Screenshot+2023-06-14+183604.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/8e288e40-296b-4b9a-af6e-c315bf7b2914/Screenshot+2023-06-12+124151.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/6d083917-d167-4408-830d-f10e9560c7af/Screenshot+2023-06-14+132026.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Our first test https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/759f0a23-a92d-4f79-9ad3-f8e414b40429/Screenshot+2023-06-12+121349.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/cc058ac8-8791-4850-9494-50cf8589bf35/Screenshot+2023-06-14+134113.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Minimal functionality for the test to pass https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/b82c46ea-378b-41f9-b05f-4a6e1144ea40/Screenshot+2023-06-14+123230.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out The default functions https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/fe816c3c-e518-48c7-adb8-33c4e80cd560/Screenshot+2023-06-12+112936.jpg Embedded Software - Test-Driven Development: The bug killer - Dual targetting TDD Since the main objective of TDD is to catch as many bugs as early as possible, using multiple compilers will be beneficial. You can quickly iterate tests on desktop and after a feature is complete or after some time, test on target. Even if the optimal environment for unit testing is a host machine or a simulator (enables full register control, even read/write only regions, etc.), testing on target can give more accurate info (sizeof(), endianess) if the circumstances allow it. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/93cb757c-e6bb-4fa5-9486-f53d9cdc66d1/tdd-vs-waterfall-1056x430.jpg Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/0aeabd5e-3086-44b2-85cd-770289ab81fc/Screenshot+2023-06-14+183719.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/0e733f31-11a4-4909-85ef-f7c340abcf16/unit-testing-part-2-2.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/d36e3b98-6243-489a-928e-6b4e3548f631/Screenshot+2023-06-14+140251.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/ffb62840-f680-4509-96f6-03fd8044fa70/Screenshot+2023-06-14+134208.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/3e295c3d-7147-45ec-8d9e-784fe89bf004/Screenshot+2023-07-07+141350.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/0b9fe2c1-b692-4035-8c1f-1266a261645a/NotAScreenshot+2023-06-14+203302.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/39817187-f1c3-4249-be49-a0560373ba04/Screenshot+2023-06-14+174824.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/c1254d1f-797f-41fd-b4cd-4981f5b23ca6/Screenshot+2023-06-14+140520.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/bdc54a08-e2fd-4d85-bd9b-8ac885591361/Screenshot+2023-06-11+210221.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/5ee3bd9f-c46b-42eb-80fc-c2366a1da351/Screenshot+2023-06-14+140552.png Embedded Software - Test-Driven Development: The bug killer - Make it stand out Now, our test passes! https://embeddedhackster.org/emb-sw/osi-layers monthly 0.5 2024-02-21 https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/e3b2e23e-be7c-4a29-824c-9eca13f7e19a/OSI+layers+embedded.png Embedded Software - OSI: THE communication model for Embedded Systems - Make it stand out Simplified OSI model for embedded systems https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/28ef17cb-f1f7-4cb4-855f-f97d4c206071/OSI+WIFI.png Embedded Software - OSI: THE communication model for Embedded Systems - Our last example will involve using WiFi to send packets from one node to another over different networks https://images.squarespace-cdn.com/content/v1/6467d01d8a1783171edffe2c/62d5ef22-db3c-44d8-9938-1b1bc3ed1da2/OSI+LoRaWAN.png Embedded Software - OSI: THE communication model for Embedded Systems - In LoRaWAN communications, we can find: Physical layer, represented by the radio modules, managing the LoRa modulation technique, frequency band, data rate, and power level. 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