Project conversion problem (51422AC -> 51822AA)

[mdever]

I have two board - 51422AC based PCA10028 and 51822AA based custom board. Custom board doesn't have 32768 OSC.

My goal is to let custom board work with example project, 'ble_app_uart_loopback'. This project is almost same to 'ble_app_uart' example except just one line.

ble_nus_string_send(~~); is added in nus_data_handler(~~) function.

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Step 1) Change ROM, RAM setting corresponding to 51822AA

IROM1: 0x1B000 0x25000

IRAM1: 0x20002080 0x1F80

RAM for Algorithm: 0x20000000 0x2000

with clock code change like following in custom_board.h

#define NRF_CLOCK_LFCLKSRC      {.source        = NRF_CLOCK_LF_SRC_RC,            \
                                 .rc_ctiv       = 2,                                \
                                 .rc_temp_ctiv  = 2,                                \
                                 .xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_250_PPM }

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Step 2) 51822AA Simulation with PCA10028

I've downloaded 's130_nrf51_2.0.0_softdevice.hex' to PCA10028. And then also downloaded application hexa file then PCA10028 board works good. Even though 51422AC in PCA10028 has 32KB, it's working good with 16KB RAM setting and also it's good with internal clock setting. So simulation is no problem.

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Step 3) Download to my custom board

I've downloaded same 2 hex files of Step 2 to my custom board with same sequence. But it does not work. I chose much simpler application project like led_blinky but leds are not blinking. But without softdevice, it's working. Without softdevice, led, adc, uart, gpio are working good on my custom board.

With assumption that the board is no problem(because it's proven module), do I have any mistake in project setting regarding softdevice? Or do I need to change something in sct file?

[mdever]

OK, I've solved this problem with this clock setting. RAM setting was correct.

#define NRF_CLOCK_LFCLKSRC      {.source        = NRF_CLOCK_LF_SRC_RC,            \

                                 .rc_ctiv       = 16,                                \

                                 .rc_temp_ctiv  = 2,                                \

                                 .xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_250_PPM }