nRF5340 Hello World Tutorial

[Pascal Künzi]

Hi all,

I was going through the nRF Connect SDK tutorial and was trying to get the "Hello World" example running on a nRF5340-PDK (PCA10095, 0.8.0).

Before that I was already able to flash and test the "peripheral_lbs" example successfully. After erasing both chips with

• nrfjprog --eraseall
• nrfjprog -f NRF53 --coprocessor CP_NETWORK --eraseall

I followed the steps in the tutorial, created the needed files and started a project with:

• nrf5340pdk_nrf5340_cpuappns
• nRF Connect SDK Release V1.4.0
• Toolchain V1.4.0

My first question is, if it is correct, that I see 3 JLink CDC Uart Ports when I only connect one HW?

When building and running the example from SES V5.10d or when i manually build and flash it with west, I get the same result.

In the one terminal I can see the following that is repeatedly printed:

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*** Booting Zephyr OS build v2.4.0-ncs1 ***

Flash regions Domain Permissions

00 01 0x00000 0x08000 Secure rwxl

02 63 0x08000 0x100000 Non-Secure rwxl

Non-secure callable region 0 placed in flash region 1 with size 32.

SRAM region Domain Permissions

00 03 0x00000 0x08000 Secure rwxl

04 63 0x08000 0x80000 Non-Secure rwxl

Peripheral Domain Status

00 NRF_P0 Non-Secure OK

01 NRF_CLOCK Non-Secure OK

02 NRF_RTC0 Non-Secure OK

03 NRF_RTC1 Non-Secure OK

04 NRF_NFCT Non-Secure OK

05 NRF_NVMC Non-Secure OK

06 NRF_UARTE1 Non-Secure OK

07 NRF_UARTE2 Secure SKIP

08 NRF_TWIM2 Non-Secure OK

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

*** Booting Zephyr OS build v2.4.0-ncs1  ***
Flash regions           Domain          Permissions
00 01 0x00000 0x08000   Secure          rwxl
02 63 0x08000 0x100000  Non-Secure      rwxl

Non-secure callable region 0 placed in flash region 1 with size 32.

SRAM region             Domain          Permissions
00 03 0x00000 0x08000   Secure          rwxl
04 63 0x08000 0x80000   Non-Secure      rwxl

Peripheral              Domain          Status
00 NRF_P0               Non-Secure      OK
01 NRF_CLOCK            Non-Secure      OK
02 NRF_RTC0             Non-Secure      OK
03 NRF_RTC1             Non-Secure      OK
04 NRF_NFCT             Non-Secure      OK
05 NRF_NVMC             Non-Secure      OK
06 NRF_UARTE1           Non-Secure      OK
07 NRF_UARTE2           Secure          SKIP
08 NRF_TWIM2            Non-Secure      OK
09 NRF_SPIM3            Non-Secure      OK
10 NRF_TIMER0           Non-Secure      OK
11 NRF_TIMER1           Non-Secure      OK
12 NRF_TIMER2           Non-Secure      OK
13 NRF_SAADC            Non-Secure      OK
14 NRF_PWM0             Non-Secure      OK
15 NRF_PWM1             Non-Secure      OK
16 NRF_PWM2             Non-Secure      OK
17 NRF_PWM3             Non-Secure      OK
18 NRF_IPC              Non-Secure      OK
19 NRF_VMC              Non-Secure      OK
20 NRF_FPU              Non-Secure      OK
21 NRF_EGU1             Non-Secure      OK
22 NRF_EGU2             Non-Secure      OK
23 NRF_DPPIC            Non-Secure      OK
24 NRF_GPIOTE1          Non-Secure      OK
25 NRF_REGULATORS       Non-Secure      OK

SPM: NS image at 0x8000
SPM: NS MSP at 0x200086c0
SPM: NS reset vector at 0x91c5
SPM: prepare to jump to Non-Secure image.
*** Booting Zephyr OS build v2.4.0-ncs1  ***
Flash regions           Domain          Permissions
00 01 0x00000 0x08000   Secure          rwxl
02 63 0x08000 0x100000  Non-Secure      rwxl

Comparing it to the expected output below, I can see that my Zephyr OS seems to be a newer version and that "Hello World" isn't printed on my output.

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*** Booting Zephyr OS build v2.1.99-ncs1 ***

Hello World!

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

*** Booting Zephyr OS build v2.1.99-ncs1  ***
Hello World!

Do you have an idea what could be going wrong?

Is the PDK too old or am I supposed to see this output on the not assembled USB J3?

Thank you in advance!

Regards,

Pascal