https://community.nxp.com/t5/i-MX-Processors/Configuring-LPSPI-to-transfer-data-using-DMA/m-p/1527652#M195580 <P>Hi everyone,</P><P>I need help configuring the LPSPI module of the IMXRT1062 processor to use DMA unit to transfer data to an external DAC from a sine lookup table. I want to generate a 1 kHz AM sine wave. The CPU is preoccupied with other necessary tasks and assigning the generation of the sine wave to the CPU would badly affect the system performance. I also want a callback function to be called when a complete cycle of a sine wave is generated. The lookup table has 128 entries for a complete sine wave cycle. We are using MQX RTOS. Any help and preferably examples would be greatly appreciated.</P><P>Thanks</P> Sun, 25 Sep 2022 06:02:36 GMT Amrit_9t8 2022-09-25T06:02:36Z https://community.nxp.com/t5/i-MX-Processors/Configuring-LPSPI-to-transfer-data-using-DMA/m-p/1527652#M195580 <P>Hi everyone,</P><P>I need help configuring the LPSPI module of the IMXRT1062 processor to use DMA unit to transfer data to an external DAC from a sine lookup table. I want to generate a 1 kHz AM sine wave. The CPU is preoccupied with other necessary tasks and assigning the generation of the sine wave to the CPU would badly affect the system performance. I also want a callback function to be called when a complete cycle of a sine wave is generated. The lookup table has 128 entries for a complete sine wave cycle. We are using MQX RTOS. Any help and preferably examples would be greatly appreciated.</P><P>Thanks</P> Sun, 25 Sep 2022 06:02:36 GMT https://community.nxp.com/t5/i-MX-Processors/Configuring-LPSPI-to-transfer-data-using-DMA/m-p/1527652#M195580 Amrit_9t8 2022-09-25T06:02:36Z