DFU and custom board.

RE: DFU and custom board.

Ole Bauck — Mon, 25 Jan 2016 12:54:34 GMT

In Project->Options->Linker->Config click the edit button. Set ROM start to 0x3c000, ROM end to 0x3fbff, RAM start to 0x20002c00 and RAM end to 0x20003f7f.

RE: DFU and custom board.

hark — Mon, 25 Jan 2016 11:49:36 GMT

Hi Bjørn Spockeli, I am using the IAR IDE. I am also use the 16KB RAM, how do i to modify the IROM1 IRAM1 and IRAM2. Thanks.

RE: DFU and custom board.

Nomi — Mon, 25 Jan 2016 08:40:42 GMT

Thank you that solved my problem.

RE: DFU and custom board.

bjorn-spockeli — Mon, 25 Jan 2016 08:01:05 GMT

The PCA100028 (nRF51 DK) uses a nRF51422 QFAC variant, i.e. 256 kB Flash and 32kB RAM. You have to modify the memory settings in order to run the example on a chip with 16kB RAM. You can edit the memory settings by going to

Options for Target >> Target >> Read/Only Memory Areas and Read/Write Memory Areas

and input the following settings:

IROM1 Start: 0x0003C000 Size: 0x3C00

IRAM1 Start: 0x20002C00 Size: 0x1380

IRAM2 Start: 0x20003F80 Size: 0x80 (NoInit Checked)

RE: DFU and custom board.

Nomi — Mon, 25 Jan 2016 04:38:29 GMT

its QFAAH00. i have checked the documentation and it says 256kB Flash, 16kB RAM.

RE: DFU and custom board.

Wojtek — Sun, 24 Jan 2016 12:52:29 GMT

What is the exact version of the chip? revision and memory

RE: DFU and custom board.

Nomi — Sun, 24 Jan 2016 04:14:52 GMT

Sdk v8.0. Chip is nrf51822. And i have both crystals on my board 32k and 16M.

RE: DFU and custom board.

Wojtek — Sun, 24 Jan 2016 00:12:36 GMT

Please specify what version of SDK and SD are you using. What is the chip version? What crystals are you using?