Recover the MBR

RE: Recover the MBR

bjorn-spockeli — Tue, 13 Jun 2017 13:51:24 GMT

If your application does not use the SoftDevice, then you should not flash the SoftDevice to your device.

RE: Recover the MBR

mamrezo — Tue, 13 Jun 2017 13:16:52 GMT

no it is a simple blink program

RE: Recover the MBR

bjorn-spockeli — Tue, 13 Jun 2017 12:27:29 GMT

Does your application use Bluetooth Low Energy to communicate with other devices?

RE: Recover the MBR

endnode — Tue, 13 Jun 2017 12:06:07 GMT

Then your program obviously don't use SD (and don't need it;).

RE: Recover the MBR

mamrezo — Tue, 13 Jun 2017 11:50:31 GMT

you are right, but why first time it worked but when i erased all the chip didn't work? when i upload the program at 0x00000000 instead of 0x0001C000, it works (without using SD)

RE: Recover the MBR

bjorn-spockeli — Tue, 13 Jun 2017 11:47:09 GMT

If the application you're building in the Arduino IDE is compiled against the headers of the S132 v1.0.0, then you should not have any issues. Please verify that the application is compile with the correct headers.

RE: Recover the MBR

mamrezo — Tue, 13 Jun 2017 11:02:12 GMT

in this time i am using Arduino and SD s130_nrf51_1.0.0_softdevice.hex my chip part no. is (N51822 QFAAH1 1621DR)

RE: Recover the MBR

bjorn-spockeli — Tue, 13 Jun 2017 10:57:40 GMT

Are you sure that the SoftDevice you flashed to the nRF51822 is compatible with the application program? Which SDK version is the application built in and which SoftDevice version are you using?

RE: Recover the MBR

mamrezo — Tue, 13 Jun 2017 10:43:01 GMT

thanks for you reply, first time i flashed SD to my chip and uploaded my program, it worked, but when accidentally erased all the chip and reflashed the SD, the program didn't work.

RE: Recover the MBR

bjorn-spockeli — Tue, 13 Jun 2017 09:08:26 GMT

Hi Mamrezo,

the MBR is a part of ourSoftDevices, see this page on Infocenter, thus you just have to flash the SoftDevice to your nRF51822.

Best regards

Bjørn

RE: Recover the MBR

endnode — Tue, 13 Jun 2017 08:58:39 GMT

Take lower 3 or 4kB (depending on version you have, see Soft Device release notes) of SD HEX file and flash it to the chip (if it is read/write protected then you are indeed out of luck and you need to erase entire NVM first).