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SWD is a debug interface defined by ARM. SWD takes up only two pins and is available on all of NXP’s ARM Cortex-M based MCUs. Cortex-M processors have extensive debug features, but for programming only a very small subset of them are needed, including: Reset, halt, and resume the execution of the processor.
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The process to use the Serial Wire Debug (SWD) in-terface for programming the internal flash memory of Series 2 de-vices is also included. For details on how to use the SWD interface to program devices, see AN0062: Pro-gramming Internal Flash over the Serial Wire Debug Interface. KEY POINTS.
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This document explains how to access the debug interface of the EFM32 and how to use this interface to program devices (load applications into flash). It also explains how to lock and unlock debug access to the MCU to protect the contents of the internal flash and SRAM. This application note includes: This PDF document. Source files (zip)
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Sep 21, 2023 · SWD, Serial Wire Debug, is a protocol designed by ARM for programming and debugging their microcontrollers. It is based on the ARM CoreSight debugging architecture and enables reading and writing of chip registers through data packets. SWD is a two-wire protocol for accessing ARM debugging interfaces.
- Required Components For Labs
- STM32 Arm Cortex-M3 Debug Support
- St-Link V2
- Create Demo Project & SWV Debug
- Live Expressions & Variables
All the example code/LABs/projects in the course are going to be done using those boards below. 1. Nucleo32-L432KC (ARM Cortex-M4 @ 80MHz) or (eBay) 2. Blue Pill STM32-F103 (ARM Cortex-M3 @ 72MHz) or (eBay) 3. ST-Link v2 Debugger or (eBay) ★ Check The Full Course Complete Kit List Some Extremely Useful Test Equipment For Troubleshooting: 1. My Digi...
The ARM Cortex®-M3 & M4 core contains hardware extensions for advanced debugging features. The debug extensions allow the core to be stopped either on a given instruction fetch (breakpoint) or data access (watchpoint). When stopped, the core’s internal state and the system’s external state may be examined. Once the examination is complete, the core...
For Debugging Projects With The Blue Pill Board This is the tool you need. Unfortunately, the Chinese clone on the left doesn’t support the serial wire trace debugging as it is. Because it doesn’t expose the SWO pin to its pinout. So you’ll need the original kit on the right, and the SWO pin will be connected to pin B3 of the blue pill. Alternative...
Step1: Open CubeMX & Create New Project Step2: Choose The Target MCU & Double-Click Its Name Step3: Configure All The Peripherals & GPIOs You’re Willing To Use In Your Project! Whatever your project is. Just do the normal configurations as per the application. To enable the serial wire debugging, you only have to add an extra step which is the one ...
Now, I’ve added an integer counter variable and a constant string. I did also place a BreakPoint in the main while loop just before the counter increment statement.
This application note describes recommended steps for production flash programming on S32K devices. There are different options available for the physical interface used for communicating with the microcontroller to program the flash and also multiple commands that can be used to modify the flash.
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How do I use invasive debug mechanisms in SWD programming?
What is Serial Wire Debug (SWD)?
What is SWD & how does it work?
Can SWD be used for Flash programming?
The programmer uses GPIO to emulate the Serial Wire Debug (SWD) interface to program the target device. The user interface is handled by push buttons, LEDs and LCD module.
