https://devzone.nordicsemi.com/f/nordic-q-a/728/how-to-add-flash-programming-algorithmHello Guys, I am having a hard time figuring how to add the nRF51xxx algorithm into Keil. According to nRF81522 Evaluation Kit user guide this should have been installed when the SDK was installed. Attached is what I see in my algorithm list. en-USTelligent Community 13Thu, 27 Mar 2014 04:08:28 GMThttps://devzone.nordicsemi.com/thread/3709?ContentTypeID=1Thu, 27 Mar 2014 04:08:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7c7004c4-c6c6-4d1d-a64c-4b13b103eb25Wei Lu<p>I solved a similar problem by manually copying Keil\ARM\Pack\NordicSemiconductor\nRF_DeviceFamilyPack\1.0.1\Flash\nrf51xxx.flm to Keil\ARM\Flash\</p> <p>I&#39;m using MDK 5 and nrf51 sdk v5.1。</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/3708?ContentTypeID=1Sat, 26 Oct 2013 05:57:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e613ccaa-74f5-4507-9dad-52670c645b41Eli Hini<p>I did try the suggestions you made. I must be missing something. I will try out again.</p> <p>Thanks Eli</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/3707?ContentTypeID=1Thu, 24 Oct 2013 07:21:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f441fc6-3890-451a-9899-3f887eb7f78dH&#229;kon Alseth<p>Hi,</p> <p>Have you updated to the latest Keil uVision (v5.00)? If yes, then Keil has made this a bit more modular, where you download &quot;packs&quot;.</p> <p>Try opening the &quot;Pack Installer&quot; and download these two packs.</p> <ul> <li>ARM::CMSIS</li> <li>Keil::MDK-Middleware</li> </ul> <p>In addition, try re-installing the nRF51 SDK to get the proper devices added to your device-list in Keil.</p> <p>Best regards Håkon</p> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/keil_5F00_pack_5F00_installer.png" alt="keil_pack_installer.png" /></p><div style="clear:both;"></div>