ATEC chip and RTC's I2C bus in OpenWrt-19.07.7

For Developers
1

Hello everyone,

I am currently working on a project that involves the parallel usage of an ATEC chip and an RTC's (ds1307) I2C bus in OpenWrt-19.07.7. I am facing some difficulties in detecting the ATEC chip using the I2C detect command.

Here there is a screenshot of the situation:
78899838e1abd0a737ef68c41b0638ba

Could someone please guide me on how to proceed with this? I would appreciate any insights or suggestions.

Thank you in advance for your help.

2

On what device? Why are you using v19? It is end of life.

Does the dts setup the i2c bus for the device you want to access?

3

The chip is an ATECC508A with a device Hi-Link Module HLK-7688A and an architecture of mipsel_24kc. We are currently using version 19, but we have plans to gradually transition to the next version.

I have added a custom dts file which defines i2c in this way

&i2c {
	status = "okay";
	clock-frequency = <100000>;

	ds1307@68 {
		compatible = "maxim,ds1307";
		reg = <0x68>;
		status = "okay";
	};

	atecc508a@c0 {
		compatible = "atmel,atecc508a";
		reg = <0x60>;
	};
};
4

you should probably transition to at least the 2nd next version.

5

Thank you for your suggestion. Just to clarify, are you saying that upgrading to at least the 2nd next version could potentially solve my issue?

6

No, I'm saying the 23 release should be out later this year, and 21 (which is the next one after 19) will be EOL:ed too.

7

21.02 already is EOL for a couple of weeks now.

8

guess I didn't get the memo :slight_smile: