Hello,
I have a data file that is read by the HPS... I'm assuming the data block is stored in the SDRAM. This is the C code I used:
volatile char *address_pointer = (char*)malloc(bufflength1); //bufflength1 is length of datablock. Approx< 65k.
n=fread(address_pointer,bufflength1,1,f);
When I debug, address_pointer = 0x043CB178
This is the same address I tell the master to start reading the data from...
I want the FPGA to read this data block and process it (and eventually return results to the HPS).
I implemented FPGA-SDRAM Avalon-MM port in the HPS. There is a read master (fft_memory in Fig 1) that connects to the fpga-sdram slave.
The master however fails to read data as the master_wait_request is always high.
Is there something else I need to set/reset before trying to use the SDRAM from the FPGA end??
or is there any other concept like base addresses/ offset that I need to take into consideration?
Any help is appreciated!!
