Difference between revisions of "Read-Modify-Write Flash"
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| − | This article describes how to use the Read- |
+ | This article describes how to use the '''Read-Modify-Write''' function of J-Link. This article assumes that there is already a basic knowledge about flash programming in general. The following example project will be shown for a Infineon XMC4500 MCU but can be applied to any other MCU which gives the option to split up physical memory sectors into smaller logical ones. |
| + | By default the Read-Modify-Write threshold is set to 1 kB. |
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| + | To increase the threshold J-Link offers the following command string: ''SetFlashDLNoRMWThreshold = <value>'' |
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| + | A more detailed description is available in the J-Link users manual (UM 8001). |
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= Minimum requirements = |
= Minimum requirements = |
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| − | In order to use the |
+ | In order to use the example project the following minimum requirements have to be met: |
* J-Link software version V6.14a or later |
* J-Link software version V6.14a or later |
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* J-Link Plus HW version V10.1 or later |
* J-Link Plus HW version V10.1 or later |
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= Sample project = |
= Sample project = |
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| − | The |
+ | The sample project is designed to be used with J-Link Plus and a Infineon XMC4500 MCU. |
= How to = |
= How to = |
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To use the example project follow these steps: |
To use the example project follow these steps: |
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| − | + | * Unzip the contents of the ''Wiki_RMW.zip'' to a example folder |
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| − | + | * execute StartTest.bat |
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| + | * The J-Link commander will open and you should see the following output |
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| − | # |
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Revision as of 10:51, 14 March 2017
This article describes how to use the Read-Modify-Write function of J-Link. This article assumes that there is already a basic knowledge about flash programming in general. The following example project will be shown for a Infineon XMC4500 MCU but can be applied to any other MCU which gives the option to split up physical memory sectors into smaller logical ones. By default the Read-Modify-Write threshold is set to 1 kB. To increase the threshold J-Link offers the following command string: SetFlashDLNoRMWThreshold = <value> A more detailed description is available in the J-Link users manual (UM 8001).
Minimum requirements
In order to use the example project the following minimum requirements have to be met:
- J-Link software version V6.14a or later
- J-Link Plus HW version V10.1 or later
- Windows PC to execute the .bat file in the example project
Sample project
The sample project is designed to be used with J-Link Plus and a Infineon XMC4500 MCU.
How to
To use the example project follow these steps:
- Unzip the contents of the Wiki_RMW.zip to a example folder
- execute StartTest.bat
- The J-Link commander will open and you should see the following output
