Running tested firmware in a custum PCB with nRF51422 AA

RE: Running tested firmware in a custum PCB with nRF51422 AA

Carlos Sánchez — Tue, 09 Jun 2015 08:47:35 GMT

Yes, indeed RK. The problem is that I had wrong IRAM1 numbers. Now is working fine.

Thank you all, sirs.

Best regards.

RE: Running tested firmware in a custum PCB with nRF51422 AA

RK — Mon, 08 Jun 2015 15:31:26 GMT

in that png of the ssd110 setup, IRAM1 is wrong, should be 0x20002000

and the size should be 0x2000 as well if you only have 16kb total RAM.

RE: Running tested firmware in a custum PCB with nRF51422 AA

Nguyen Hoan Hoang — Mon, 08 Jun 2015 15:25:18 GMT

Have you check the RAM size ? has to be 16KB for AA chip. As Wojtek commented, try to trace to find where it crashes.

RE: Running tested firmware in a custum PCB with nRF51422 AA

Carlos Sánchez — Mon, 08 Jun 2015 15:18:12 GMT

Yes, indeed. It has a 32,768 Khz, Cl 9 pF and 10 ppm. In my firmware, I tryed with these both instructions:

// Initialize the SoftDevice handler module. // SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, false); SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION, false);

Neither using the external crystal nor the internal oscillator, I get the pcb running. I think I have a conflict between SD and my firmware, in other words, despite selecting the right ROM addresses, I forget something else important...

RE: Running tested firmware in a custum PCB with nRF51422 AA

Wojtek — Mon, 08 Jun 2015 15:10:29 GMT

Are you able to start debug session in keil? Maybe try settings some breakpoints in error handler?

RE: Running tested firmware in a custum PCB with nRF51422 AA

Carlos Sánchez — Mon, 08 Jun 2015 14:56:52 GMT

Hello Alex,

Yes, I did. Here you have an example when I use SD110 v.7.1 and my firmware:

sd110_setup.png

In the example above, forget the nRF51422_xxac. In the "Device" tab, I selected nRF51422_AA (the microcontroller that I am using in my custom board).

RE: Running tested firmware in a custum PCB with nRF51422 AA

Nguyen Hoan Hoang — Mon, 08 Jun 2015 14:55:17 GMT

Does your board has 32KHz crystal ? If not change the initialization of SD to use internal RC instead. All the examples code default to use crystal.

RE: Running tested firmware in a custum PCB with nRF51422 AA

Alex — Mon, 08 Jun 2015 14:49:13 GMT

Did you use compiler settings from any of the examples which created to be used with SD, not stand alone? Most likely your linker settings overwrite SD in ROM.

ROM_start__ = 0x00016000