Modular SGDMA - Streaming to Memory Mapped Random first write.

Hello, guys. I"m also trying to use mSGDMA IP.

So I have a question regarding data length.

Did you try to use data length not multiple of data bus width?

My configuration is as follows

Transfer mode: MM->ST

Data width: 32

DAta FIFO depth: 256

Descriptor fifo: 128

Maximum Transfer Length: 1 KB

Length width: 20

Transfer Type: Unaligned access

Burst Enable: on

Maximum Burst Count: 64

Force Burst Alignment: off

Packet Enable: On

Channel Enable: On, 4

Error Enable: On, 8

From what I see in simulations:

If I set Descriptor as follows:

Start addr: whatever (let's take 0x0)

Length : 51 ( any not multiple of 4 bytes)

Flags: Go,SOP,ErrDonEn,Channel,Error,!EOP

So msgdma initiates two transfers:

1. Read burst request for 12 * 4 bytes

2. Read request for the last data for 3 bytes

But in the result on ST interface

we get 52 bytes without any notice that the last byte is invalid (cause no EoP thus no empty signal)

So does anyone knows method of transferring not multiple of bus width bytes via MM->ST interface?