nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user74103 — Tue, 29 Mar 2022 02:14:26 GMT

Hi Håkon and xingye,

I have same issue with reading the data from the i2s read.

I want to know how to read the i2s line

In the i2s_data_handler

p_released->p_rx_buffer; where data will arrive right?

what will be the size of this pointer and how do i store this pointer value to the int16_t PCM[67200]; array

I am trying to do store the i2s data and then sending the stored data into i2s line

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user103303 — Mon, 14 Jun 2021 12:21:40 GMT

Kindly check your inbox and reply i need your help

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user2115 — Fri, 28 May 2021 08:53:48 GMT

Hi,

Could it be that NRF_LOG is enabled and blocking execution at your end?

Please try setting NRF_LOG_ENABLED to '0' in your sdk_config.h and see if this has an impact on the execution time.

Kind regards,

Håkon

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user104557 — Thu, 27 May 2021 08:53:23 GMT

I hope the manufacturer can do a small test, and use the SDK / nrf5_ SDK_ 17.0.0_ 9d13099/examples/ble_ peripheral/ble_ app_ / pca10056 / S140，Add IIS host test to the template in template without stop_ IIS, like this, test whether it's like what I said. Thank you very much,

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user104557 — Thu, 27 May 2021 08:03:56 GMT

Nrf52832 is normal, we found that the two chips have different differences

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user104557 — Thu, 27 May 2021 06:00:12 GMT

When I reduce the sampling frequency, I can send broadcast events, but I can't connect. I think it is interrupted by I2S transmission when I connect. However, I have adjusted the interrupt priority of I2S to 7, the lowest priority

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user2115 — Wed, 26 May 2021 13:52:07 GMT

Hi,

Do you have any spare GPIOs? You could try setting / clearing them in different functions to see where the CPU is stuck for longer periods.

How many bytes are you sending over I2S?

Kind regards,

Håkon

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user104557 — Wed, 26 May 2021 01:18:30 GMT

I thought so, but I don't know what went wrong，

as long as I2S is turned on_ start,static void data_ The handler function doesn't handle anything, and there's no way to broadcast,

RE: nrf52840 I2S打开读取数据，会占用全部资源 When nrf52840 I2S is opened to read data, it will occupy all resources

user2115 — Tue, 25 May 2021 10:34:32 GMT

Hi,

The peripheral itself uses DMA for transferring, so it should not be blocking the CPU.

How are you handling this in your application?

Kind regards,

Håkon