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2026-06-10

通过DMA写入指定地址的数据Addr(源为本地缓冲区) - DmaWriteDataAddrFromBin ​

函数简介 ​

通过 DMA 写入指定地址的数据，数据源为本地缓冲区，使用直接地址而不是 CE 格式。(高级版功能,普通版无法使用)

接口名称 ​

DmaWriteDataAddrFromBin

DLL调用 ​

c
int32_t OLA_CALL_TYPE DmaWriteDataAddrFromBin(int64_t instance, int64_t deviceId, int32_t pid, int64_t addr, int64_t data, int32_t len);

参数说明 ​

参数名类型说明
instance长整数型OLAPlug对象的指针，由 CreateCOLAPlugInterFace 接口生成。
deviceId长整数型设备ID
pid整数型进程 PID
addr长整数型直接内存地址
data长整数型数据缓冲区地址
len整数型数据长度（字节）

示例 ​

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0);
if (ret == 1) {
    // 操作成功
}
csharp
using OLAPlug;

var ola = new OLAPlugServer();
int ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0);
if (ret == 1)
{
    // 操作成功
}
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0)
if ret == 1:
    pass  # 操作成功
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
int ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0);
if (ret == 1) {
    // 操作成功
}
cpp
var ola = com("OlaPlug.OlaSoft")
var ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0)
if(ret == 1) {
    // 操作成功
}
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0)
If ret = 1 Then
    ' 操作成功
End If
text
.局部变量 ola, OLAPlug
ola.创建 ()
ret ＝ ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0)
.如果真 (ret ＝ 1)
    ' 操作成功
.如果真结束
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0);
if(ret == 1){
    // 操作成功
}
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
整数 ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0)
如果真 (ret ＝ 1)
{
    // 操作成功
}
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int32_t ret = ola.DmaWriteDataAddrFromBin(0, 1234, 0, 0, 0);
if (ret == 1) {
    // 操作成功
}

原生 DLL 调用 ​

cpp
DmaWriteDataAddrFromBin(instance, 0, 1234, 0, 0, 0);
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int DmaWriteDataAddrFromBin(long ola, int deviceId, int pid, int addr, int data, int len);

DmaWriteDataAddrFromBin(instance, 0, 1234, 0, 0, 0);
python
from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
ola.DmaWriteDataAddrFromBin(instance, 0, 1234, 0, 0, 0)

返回值 ​

整数型：1 成功，0 失败。