For my project I need to set the UART0 speed to 9600 baud.
So for testing I tried to compile the "Hello word" example by setting the board configuration file (ncs\v1.6.1\ zephyr\ boards\ arm\ nrf9160dk_nrf9160 \ nrf9160dk_nrf9160_common.dts) as follows:
&uart0 {
status = "okay";
current-speed = <9600>;
tx-pin = <29>;
rx-pin = <28>;
rts-pin = <27>;
cts-pin = <26>;
};
Rebuilding the project the system HALT. See the following log:
*** Booting Zephyr OS build v2.6.0-rc1-ncs1 *** Flash regions Domain Permissions 00 01 0x00000 0x10000 Secure rwxl 02 31 0x10000 0x100000 Non-Secure rwxl Non-secure callable region 0 placed in flash region 1 with size 32. SRAM region Domain Permissions 00 07 0x00000 0x10000 Secure rwxl 08 31 0x10000 0x40000 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-SecureE: ***** HARD FAULT ***** E: Bus fault on vector table read E: r0/a1: 0xfefa125b r1/a2: 0x00000000 r2/a3: 0x00000021 E: r3/a4: 0x00000000 r12/ip: 0x00000000 r14/lr: 0x00000000 E: xpsr: 0x00000000 E: Faulting instruction address (r15/pc): 0x0000910b E: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0 E: Current thread: 0x20000218 (unknown)
If I replace the original setting
&uart0 {
status = "okay";
current-speed = <115200>;
tx-pin = <29>;
rx-pin = <28>;
rts-pin = <27>;
cts-pin = <26>;
};
everything is ok. See the following log:
*** Booting Zephyr OS build v2.6.0-rc1-ncs1 ***
Flash regions Domain Permissions
00 01 0x00000 0x10000 Secure rwxl
02 31 0x10000 0x100000 Non-Secure rwxl
Non-secure callable region 0 placed in flash region 1 with size 32.
SRAM region Domain Permissions
00 07 0x00000 0x10000 Secure rwxl
08 31 0x10000 0x40000 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_NVMC Non-Secure OK
05 NRF_UARTE1 Non-Secure OK
06 NRF_UARTE2 Secure SKIP
07 NRF_TWIM2 Non-Secure OK
08 NRF_SPIM3 Non-Secure OK
09 NRF_TIMER0 Non-Secure OK
10 NRF_TIMER1 Non-Secure OK
11 NRF_TIMER2 Non-Secure OK
12 NRF_SAADC Non-Secure OK
13 NRF_PWM0 Non-Secure OK
14 NRF_PWM1 Non-Secure OK
15 NRF_PWM2 Non-Secure OK
16 NRF_PWM3 Non-Secure OK
17 NRF_WDT 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_REGULATORS Non-Secure OK
25 NRF_PDM Non-Secure OK
26 NRF_I2S Non-Secure OK
27 NRF_GPIOTE1 Non-Secure OK
SPM: NS image at 0x10000
SPM: NS MSP at 0x200107b0
SPM: NS reset vector at 0x11795
Ê*** Booting Zephyr OS build v2.6.0-rc1-ncs1 ***
Hello World! nrf9160dk_nrf9160
I tryed also other sample like http_update\application_update with the same result.
I also tried with different serial baud speed with the same result.
Please help me to understand what is wrong.
I'm using nRF9160-DK board and SDK 1.6.1.
