https://devzone.nordicsemi.com/f/nordic-q-a/11068/how-to-program-wt51822-s4at-with-st-linki am using wt51822 s4a t chip and trying to program it with st-link and when i try to run simple blinky example from nrf51 sdk it gives some error my flash settings are in imageen-USTelligent Community 13Wed, 30 Dec 2015 09:51:14 GMThttps://devzone.nordicsemi.com/thread/41403?ContentTypeID=1Wed, 30 Dec 2015 09:51:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1cc454e2-3a37-489c-9a6a-8adaaa0d7f52mehmood ahmed malik<p>i have followed it as it is if you send me e mail i will send you more pictures about what i have done. even it is not erasing its flash.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41404?ContentTypeID=1Tue, 29 Dec 2015 15:17:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4e4b573e-c3f6-47eb-be3a-79717ba884f8mehmood ahmed malik<p>i did it as well but still getting this error it will be helpful if you give me some steps.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41402?ContentTypeID=1Tue, 29 Dec 2015 10:43:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f5545089-7878-4ae0-b93f-3fc80a816656monpetit<p>Here is my configuration. It works well.</p> <ul> <li>Connect device and debugger (target board have to be powered.)</li> </ul> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/ARM_5F00_Interface_5F00_SWD_5F00_250_5B00_25_5D00_.jpg" alt="image description" /> <img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/20151230_5F00_095957_2D00_640.jpg" alt="image description" /></p> <ul> <li>Select debug adapter</li> </ul> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/stlink_2D00_v2_2D00_0.png" alt="image description" /></p> <ul> <li>Select SW(SWD) as port and check device on connection</li> </ul> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/stlink_2D00_v2_2D00_1.png" alt="image description" /></p> <ul> <li>Check programming algorithm and address range</li> </ul> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/stlink_2D00_v2_2D00_address_2D00_range.png" alt="image description" /></p> <p>If you are still faced with errors, you should adjust maximum clock speed.</p><div style="clear:both;"></div>