nRF52810 TWI Driver issues

RE: nRF52810 TWI Driver issues

Jared — Mon, 18 Oct 2021 13:13:12 GMT

Hi.

Use the same API and driver as they use in the examples.

regards

Jared

RE: nRF52810 TWI Driver issues

Taylor — Mon, 18 Oct 2021 12:50:11 GMT

Thanks!

Can I use twi_sw_master driver in our product?

RE: nRF52810 TWI Driver issues

Jared — Mon, 18 Oct 2021 12:41:16 GMT

I don't have the keil project. But you can easily do it yourself by:

Make a copy of the PCA10040e Blinky project
Replace the blinky main.c file with the c file from the twi_sensor project
Compare the sdk_config file from the blinky and sdk_config file for the twi_sensor project and enable the TWIM peripheral and other relevant configs.
Open the Keil project and add every driver that is not already added but present in the twi_sensor project.

[quote user="ColorPen"]How about the mothod of twi_sw_master which is deprected? Beacause I had used this driver on other platform. [/quote]

You should use the same API as they use in the example.

regards

Jared

RE: nRF52810 TWI Driver issues

Taylor — Fri, 15 Oct 2021 07:30:35 GMT

Thank you Jared. But could you add Keil MDK project? I'm using keil to make my appliation.

How about the mothod of twi_sw_master which is deprected? Beacause I had used this driver on other platform.

RE: nRF52810 TWI Driver issues

Jared — Fri, 15 Oct 2021 07:17:28 GMT

Whoops! My fault. It seems the folder I was looking at was from an earlier conversion I had done myself. I've attached the PCA10040e folder. Just un-zip it in: nRF5_SDK_17.0.2_d674dde\examples\peripheral\twi_scanner

devzone.nordicsemi.com/.../7142.pca10040e.7z

RE: nRF52810 TWI Driver issues

Taylor — Fri, 15 Oct 2021 03:16:59 GMT

There is no example for nRF52810 in SDK17.02 about TWI.

BTW, I have read the ID of device by using twi_sw_master on nRF52832.This method is be deprected in SDK, could I use it?

I'll test on nRF52810. There is no difference by using this mothod, right?

Thanks!

RE: nRF52810 TWI Driver issues

Jared — Thu, 14 Oct 2021 13:14:53 GMT

Check the twi_scanner example. You can try pasting your code into the main.c of that example. I think that should work 🙂

RE: nRF52810 TWI Driver issues

Taylor — Thu, 14 Oct 2021 12:06:49 GMT

I can't find PCA10040e in SDK17.0.2 :(

RE: nRF52810 TWI Driver issues

Jared — Thu, 14 Oct 2021 11:36:30 GMT

[quote user="ColorPen"]This device is 7-bit address. So when I write data,shifted left 1-bit and set lowest-bit to 0.[/quote]

I understand.

[quote user="ColorPen"]I download the example(SDK14.2) to my board, there isn't any wave on P26 and P27. Even no devices on SCL and SDA, is that normally?[/quote]

Use SDK 17.0.2 instead, it has support for nRF52810 contrary to SDK 14.2.0. See the PCA10040e example folder instead.

regards

Jared

RE: nRF52810 TWI Driver issues

Taylor — Thu, 14 Oct 2021 11:22:23 GMT

This device is 7-bit address. So when I write data,shifted left 1-bit and set lowest-bit to 0.

I download the example(SDK14.2) to my board, there isn't any wave on P26 and P27. Even no devices on SCL and SDA, is that normally?

RE: nRF52810 TWI Driver issues

Jared — Thu, 14 Oct 2021 11:13:12 GMT

Hi,

Can you probe the SDA line and see what data that Is sent and if it's what you expect? If the address is 0x1C, why do you write to 0x38 and 0x39?

regards

Jared