TIDUEM8B March   2019  – February 2021

 

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2.3.2.1.6 Direct Memory Access (DMA)

The direct memory access (DMA) module transfers packets between the MSP432 MCU and ADS131M04 device with minimal bandwidth requirements from the MSP432 CPU. Two DMA channels are used for communicating to the ADS131M04. One channel (channel 0) is used to send data to the ADS131M04 and the other channel (channel 1) is used to receive data from the ADS131M04. Once a complete packet has been received from the ADS131M04, an interrupt is generated to complete any necessary post-transfer processing, such as CRC verification and packet assembly. Figure 2-12 shows the packets that are sent and received using the DMA of the MSP432 MCU.