4 Replies Latest reply on May 13, 2017 1:17 AM by mccartneydamon_1553781

I2S DMA Tx on PSoC 4 : Simple Example

cypress_1675071 Jan 18, 2017 2:13 AM

Is there a simple example of how to set up I2S code to Tx-only a buffer of canned data to I2S using DMA on PSoC 4200 BLE.

I found a PSoC 3 example that uses a different DMA component.

The DMA examples only offer bi-dir UART, SPI and ADC.

Many function calls, but no explanation of the required/mandatory sequences to implement a simple I2S Tx. So painful.

1. Re: I2S DMA Tx on PSoC 4 : Simple Example

user_49271930 Jan 11, 2017 11:46 PM (in response to cypress_1675071)

I used CE95330 - Inter-IC Sound Bus (I2S) with PSoC 3/5LP
My project for Tx only (PSoC3): DA1311_I2S.zip
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2. Re: I2S DMA Tx on PSoC 4 : Simple Example

cypress_1675071 Jan 12, 2017 5:58 AM (in response to cypress_1675071)

need PSoC 4
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3. Re: I2S DMA Tx on PSoC 4 : Simple Example

hima Jan 24, 2017 3:10 AM (in response to cypress_1675071)

Hello

There is I2S example based on PSoC4L. PSoC4 also uses the same implementation.You can also have a look at the Remote Control RDK (Link:http://www.cypress.com/documentation/development-kitsboards/cy5672-proc-ble-remote-control-reference-design-kit-rdk).

Thanks,

Hima
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4. Re: I2S DMA Tx on PSoC 4 : Simple Example

mccartneydamon_1553781 May 13, 2017 1:17 AM (in response to cypress_1675071)

Did anybody get anything working on this front? I asked cypress c/s and they were not very helpful, said to look at the PSOC5 examples. From looking into this it seems they are kinda the same apart from the DMA...?
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