interface riffa reusable integration framework for afpga可重复使用集成框架.pdf

C/C++Interface|RIFFA:AReusableIntegrationFrameworkForFP...

voidfpga_close(fpga_t*fpga);

Cleansupmemory/resourcesfortheFPGAspecifiedbythedescriptor(pointer).

fpga

-Pointerto

fpga_t

struct.

Returns:

Nothing.

intfpga_send(fpga_t*fpga,intchnl,void*data,intlen,intdestoff,intlast,longlongtimeout);

Sends

len

words(4bytewords)from

data

toFPGAchannel

chnl

usingthe

fpga_t

struct.TheFPGAchannelwillbesent

len,

destoff,and

last.The

valueof

destoff

isusedtosupportsendingdataacrossmultiplesendtransactions.

Notethatonlythelow31bitsofthis

unsignedint

aresent.If

last

is1,

thechannelshouldinterpretofthissendasofa

transaction.If

last

is0,thechannelshouldwaitforadditionalsends

beforeofthe

transaction.If

timeout

isnon-zero,thiscallwill

senddataandwaitupto

timeout

msfortheFPGAtorespond(between

packets)beforetimingout.

If

timeout

iszero,thiscallmayblock

indefinitely.Multiplethreadssendingonthesamechannelmayresultin

corruptdataorerror.Thisfunctionisthread

safeacrosschannels.Returnsthenumberofwordssent.

fpga

-Pointerto

fpga_t

structure.

chnl

-Channelnumberoverwhichtocommunicate.

data

-Pointertoarrayofda