Switch from NRF51822 QFAA to QFAC

RE: Switch from NRF51822 QFAA to QFAC

Hugues Bernet-Rollande — Tue, 24 May 2016 09:16:47 GMT

Ok, you mean I have to change it to 0x29000 ? It looks Ok for compiling with your configuration, I will flash it when I receive the PCB this afternoon, thanks for your help !

RE: Switch from NRF51822 QFAA to QFAC

Susheel Nuguru — Fri, 20 May 2016 22:24:53 GMT

change 0x2A000 to 0x29000. It will effect if you have DFU bootloader.

RE: Switch from NRF51822 QFAA to QFAC

Hugues Bernet-Rollande — Fri, 20 May 2016 13:50:59 GMT

Ok thank you for your quick answer Aryan :) My current memory configuration is the following :

MEMORY
{
  FLASH (rx) : ORIGIN = 0x00016000, LENGTH = 0x2A000
  RAM (rwx) :  ORIGIN = 0x20002000, LENGTH = 0x2000
}

So I just have to switch 0x2000 to 0x6000, correct ? Despite the fact that the flash length is 0x2A000 on my settings, I don't have to change it ?

Hugues

RE: Switch from NRF51822 QFAA to QFAC

Susheel Nuguru — Fri, 20 May 2016 12:41:18 GMT

The package is pin and flash compatible. Only RAM size is changed. So in Keil you just need to change the RAM settings to

and in your case for gcc you use below in .ld file

/* Linker script to configure memory regions. */

MEMORY
{
  FLASH (rx) : ORIGIN = 0x00016000, LENGTH = 0x29000 
  RAM (rwx) :  ORIGIN = 0x20002000, LENGTH = 0x6000 
}