66AK2G12: Data transfer from GPMC to ARM (DSP) with DMA

user3788809

Part Number: 66AK2G12

Hi,

According to the TRM of Figure 3-2. TeraNet_DMA Master-Slave Connections and Table 3-3. TeraNet_DMA Connectivity Matrix,

66AK can transfer data from ARM and DSP(=MSMC_0_SYS_MST) to GPMC(=GPMC_0_SLV) with DMA.

In order to transfer data from GPMC to ARM and DSP with DMA, what should I do? There is no GPMC slave.

I guess the destination (master) is "MSMC_0_SES_SLV" or "MSMC_0_SMS_SLV", but where is GPMC source as a slave?

Is it possible? How I do that?

Thanks.

over 5 years ago

0 Rahul Prabhu over 5 years ago

TI__Guru** 116770 points

Sorry for the delay here. We are checking for inputs on this issue from our design team and we will provide a response here as soon as we hear back from the team.

0 Rahul Prabhu over 5 years ago in reply to Rahul Prabhu

TI__Guru** 116770 points

Are you just trying to DMA from GPMC space to MSMC or DSP L2 memory. You can use EDMA, where source address is the GPMC address space(check memory map), and destination be the MSMC or DSP L2. Table 3-3 just shows the CBASS connectivity matrix, where the relevant master shall be the TCs of the EDMAs.

Regards,

Rahul

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66AK2G12: Data transfer from GPMC to ARM (DSP) with DMA