Stuck at SPM: prepare to jump to Non-Secure image (nRF9160)

RE: Stuck at SPM: prepare to jump to Non-Secure image (nRF9160)

brown27 — Thu, 12 May 2022 21:21:19 GMT

Solved the issue! I have to use &i2c2 instead of &i2c1 in my board overlay and disable &uart2. I'm not 100% sure why this is, but I'll keep looking into it tomorrow to see if I can understand it. My updated overlay file is below - when used with the rest of the tmp116.tar.gz project, I am seeing temperatures over serial.

/*
 * Copyright (c) 2019 Centaur Analytics, Inc
 *
 * SPDX-License-Identifier: Apache-2.0
 */

&i2c2 {
    
	compatible = "nordic,nrf-twim";
	status = "okay";
	sda-pin = < 30 >;
	scl-pin = < 31 >;
    clock-frequency = <I2C_BITRATE_STANDARD>;

	ti_tmp116: ti_tmp116@49 {
		compatible = "ti,tmp116";
		reg = <0x49>;
		label = "TMP116";
		#address-cells = <1>;
		#size-cells = <0>;
		
		eeprom: ti_tmp116_eeprom@0 {
			compatible = "ti,tmp116-eeprom";
			reg = <0x0>;
			label = "TMP116_EEPROM";
			read-only;
		};
	};

};

&uart2 {
	status = "disabled";
};

RE: Stuck at SPM: prepare to jump to Non-Secure image (nRF9160)

brown27 — Thu, 12 May 2022 14:16:42 GMT

Using an nRF52840dk (instead of the nRF9160dk), I am able to read temperatures from the TMP117. So, whatever I'm doing wrong must be unique to the nRF9160.

I'm including my project and build commands for the nRF52840dk below in case it might be of use to anyone else. My TMP117 has an i2c address of 0x49.

$ rm -rf build
$ west build -b nrf52840dk_nrf52840 -- -DDTC_OVERLAY_FILE="boards/arm/nrf52840dk_nrf52840.overlay"
$ west flash --erase

devzone.nordicsemi.com/.../tmp116_5F00_nrf52840.tar.gz

RE: Stuck at SPM: prepare to jump to Non-Secure image (nRF9160)

brown27 — Thu, 12 May 2022 13:30:20 GMT

As part of the azure_iot_hub demo, I updated my nRF9160-DK application and modem firmware to version "nrf9160dk_fw_2022-02-17_ec486dab" as instructed here:

Getting started with nRF9160 DK — nRF Connect SDK 1.9.99 documentation (nordicsemi.com)

In those steps, I updated the modem firmware to "mfw_nrf9160_1.3.1" which appears to be the latest available.

I am using v1.9.1 of the SDK.

EDIT: Also, I'm using the command line tools and doing all of this in a Linux virtual machine. SEGGER is installed at /opt/SEGGER and its version is the latest at v7.64e. The nRF command line tools have been updated to the latest at v10.15.4.

RE: Stuck at SPM: prepare to jump to Non-Secure image (nRF9160)

Charlie — Thu, 12 May 2022 13:07:15 GMT

Hi Thomas,

Have you check the solution mention in this dicsussion?

nrf9160 can't jump (Secure Boot: prepare to jump to Non-Secure image) - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

Best regards,

Charlie