Part Number: AM2632
Tool/software:
Hello
We want to use GPMC interface to read data from external FPGA, FPGA generate less than 100Mbit/s datastream. After FPGA generates amount of data for example 1500bytes, FPGA will generate a interrupt by a GPIO connected to AM2632, at this moment, AM2632 will start to read data from FPGA using DMA mode. When transfer is finished, a DMA interrupt is generated, and we can copy the data for later use in DMA interrupt service routine.
We need help for questions below.
1. For hardware design, we don't want to use address bus as our FPGA don't process address bus signal, so is it ok if we don't connect the databus to fpga and just use other lines in GPMC to get data from FPGA. We prefer nor flash synchronize burst mode in GPMC configuration, can you give us typical solution in this case?
2. what is the max data size for a burst read in GMPC module, we need to read at least several kilo bytes in one burst read cycle, is that ok in AM2632?
3. If it is OK in our system to read several kilo bytes at a time, can you share you GMPC and DMA configuration and demo for us?
The project schedule is very urgent, but we haven't use this module before, we are looking forward to your reply thank you very much.
