How To Add Lpc2148 In Keil 5

If you're working with the LPC2148 microcontroller and want to develop firmware using Keil uVision 5, it's essential to properly set up your project environment. Adding the LPC2148 support in Keil 5 involves configuring the project with the correct device settings, including the device-specific startup files, headers, and libraries. This step-by-step guide will help you seamlessly integrate the LPC2148 microcontroller into your Keil 5 IDE, enabling you to start developing embedded applications efficiently.

Understanding the LPC2148 Microcontroller and Keil 5

The LPC2148 is a popular 32-bit microcontroller from NXP (formerly Philips), based on the ARM7TDMI-S core. It offers features like multiple UARTs, SPI, I2C, timers, ADC, DAC, and more, making it suitable for various embedded applications.

Keil uVision 5 is a widely used IDE for embedded development, especially for ARM-based microcontrollers. It provides extensive support through device-specific packs, libraries, and debugging tools. However, to work with LPC2148 in Keil 5, you need to ensure that your project is correctly configured with the appropriate device files and startup code.

Step 1: Install Keil uVision 5 and Necessary Packs

Before adding the LPC2148 to Keil 5, ensure that you have installed Keil uVision 5 on your computer. You can download it from the official Keil website. Once installed, you'll also need to install the device pack that supports the LPC2148.

• Open Keil uVision 5.
• Navigate to Project > Manage > Pack Installer.
• Search for "LPC2148" or "LPC214x" in the Pack Installer.
• If available, install the LPC2148 device support pack.
• If not available, proceed to manually add the device support files (see next sections).

Step 2: Obtain the LPC2148 Device Support Files

If Keil doesn't provide an official pack for LPC2148, you can manually add support files. These include device-specific startup files, CMSIS files, and device headers. You can find these files from community repositories, vendor websites, or the official NXP LPC2148 SDK.

Download the necessary files and organize them in a dedicated folder for easy access during project setup.

Step 3: Create a New Project in Keil uVision 5

To set up your development environment, follow these steps:

• Open Keil uVision 5.
• Go to Project > New uVision Project.
• Choose a location and filename for your project, then click Save.
• In the "Select Device for Target" window, if LPC2148 is listed, select it. If not, proceed to add the device manually (see next step).

Step 4: Manually Add the LPC2148 Device Files

If LPC2148 isn't available in the device list, you need to add the device support manually:

• Click Cancel in the device selection window.
• Right-click on your project in the Project window and select Options for Target.
• Navigate to the Device tab.
• Click on Device Database or select Manual if available.
• Use the Browse button to locate the downloaded device files folder.
• If no direct support exists, you can create a custom device by importing device headers and startup files.

Step 5: Add Startup Files and CMSIS Support

For the project to compile and run correctly, include startup files specific to LPC2148. These files initialize the microcontroller's vector table and system clock.

• Copy the startup file (e.g., startup_LPC2148.s) into your project folder.
• In Keil, right-click on your project and choose Add Existing Files to Group.
• Select the startup assembly file and add it.
• Ensure the device header files (e.g., LPC2148.h) are included in your source files or added to the project.

Step 6: Configure the Project Settings

Proper configuration ensures your project compiles correctly:

• Go to Project > Options for Target.
• Set the Device to the correct microcontroller. If not listed, ensure you've manually linked the device support files.
• In the C/C++ tab, include paths to the header files (e.g., include directory containing LPC2148.h).
• In the Output tab, specify the output filename.
• In the Debug tab, configure debugger settings if needed.

Step 7: Add Libraries and Linker Settings

To support various peripherals and system functions, link the appropriate libraries:

• Include startup code, CMSIS libraries, and device-specific libraries.
• In the Project > Options for Target, navigate to the Libraries tab.
• Add or remove libraries as needed to match your application requirements.

Step 8: Write and Compile Your Code

Once your environment is set up, you can start writing code to control the LPC2148 peripherals. Remember to include the device header file at the top of your main source file:

#include <LPC2148.h>

Compile your project by clicking the Build button. Fix any errors related to missing files or incorrect configurations.

Step 9: Debugging and Uploading Firmware

Connect your hardware to the development PC via a suitable programmer/debugger (e.g., ULINK2). Configure the debugger in Keil and start debugging your code:

• Ensure your target device is correctly selected in the debugger settings.
• Use breakpoints, step execution, and watch variables to test your program.
• Once satisfied, flash the firmware onto your LPC2148 microcontroller.

Conclusion

Adding LPC2148 support in Keil uVision 5 might seem challenging initially, especially if device support isn't readily available. However, by following the outlined steps—installing necessary files, creating a new project, manually adding device support files, configuring project options, and integrating startup code—you can set up a reliable development environment. This setup enables you to harness the full potential of the LPC2148 microcontroller, facilitating efficient firmware development for your embedded projects. With patience and careful configuration, you'll be ready to develop, debug, and deploy robust applications on the LPC2148 using Keil 5.

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