[esayDMA] SPI Communication btw nRF52 series and intanRHD(ADC)

RE: [esayDMA] SPI Communication btw nRF52 series and intanRHD(ADC)

Naeem Maroof — Wed, 19 Jun 2024 15:18:03 GMT

you can use nrfx drivers, or use zephyr api and in the overlay specify spim as a compatable property.

we do have a lesson on interfacing a sensor with nrf spi peripheral: interfacing a sensor with spi

RE: [esayDMA] SPI Communication btw nRF52 series and intanRHD(ADC)

seongmincho — Fri, 07 Jun 2024 05:01:59 GMT

I missed the notification and just saw your reply now.

I mistakenly mentioned SPI, but I am actually using SPIM.

The key points of my question are as follows:

- The code above is programmed to use SPIM (+easyDMA). I am wondering if I am using easyDMA correctly.

RE: [esayDMA] SPI Communication btw nRF52 series and intanRHD(ADC)

Naeem Maroof — Wed, 05 Jun 2024 10:47:04 GMT

[quote user=""]To improve the stability of execution, I aim to minimize delay by using easyDMA. Is the method I used (easyDMA) appropriate?[/quote]

as per the product specification, SPI is deprecated, and you should use spim which is spi master with easydma.

[quote user=""]When debugging the addresses of uint8_t tx_buf_array[68][2]; and uint8_t rx_buf_array[68][2];, I found that they are not contiguous[/quote]

I think that part is done by the compiler, and you don't have control over it.

[quote user=""]Also, is the method of assigning addresses to these variables correct (not implemented in the code)?[/quote]

I did not get you, what do you mean? can you elaborate more?

[quote user=""]Are there any additional areas that need further optimization?[/quote]

I would suggest going through the sample codes provided in the NCS and use them as per your use case.