X-Git-Url: http://git.smho.de/gw/?p=owTools.git;a=blobdiff_plain;f=src%2FowDevice.cpp;fp=src%2FowDevice.cpp;h=e710102a437195c1bab59b906ce690bdbf63e8cc;hp=070ec4093e49eb0f8e39763f9e76921454a69088;hb=df91f0af6eb853d1fd572da66c7fee753a8ebd64;hpb=6cc62e3c72ae861a7d1c7f770e052b7b054d0c7a

diff --git a/src/owDevice.cpp b/src/owDevice.cpp
index 070ec40..e710102 100755
--- a/src/owDevice.cpp
+++ b/src/owDevice.cpp
@@ -280,6 +280,69 @@ int owDeviceDS2438::readScratchpad(std::vector<uint8_t> *sp, uint8_t page, int r
 	return 0;
 }
 
+int owDeviceDS2438::readMemory(int page,int start, int count,std::vector<uint8_t> *data) {
+	if ((page>7)||(page<0)||(start>7)||(start<0)||(start+count>8)) return 0;
+	std::vector<uint8_t> cl;
+	cl.clear();
+	cl.push_back(0xB8); //recall
+	cl.push_back(page);
+	Communicate(&cl, 2, 0);
+	if (owi->log->last()>=OWLOG_ERROR) return -1;
+	cl.clear();
+	cl.push_back(0xBE);
+	cl.push_back(page);
+	Communicate(&cl, 2, 9);
+	if (owi->log->last()>=OWLOG_ERROR) return -1;
+	cl.erase(cl.begin());
+	cl.erase(cl.begin());
+	if (owi->calcCRC8(cl)!=0) {
+		owi->log->set(OWLOG_WARNING,"CRC ERROR reading DS2438 Scrachpad");
+	}
+	data->clear();
+	data->insert(data->begin(),cl.begin()+start,cl.begin()+start+count);
+	return count;
+}
+int owDeviceDS2438::writeMemory(int page,int start, int count,std::vector<uint8_t> *data) {
+	if ((page>7)||(page<0)||(start>7)||(start<0)||(start+count>8)) return 0;
+	std::vector<uint8_t> sp;
+	if ((start>0)||(count<8)) {
+		readMemory(page,0,8,&sp);
+	}
+	std::vector<uint8_t> cl;
+	cl.push_back(0x4E); 
+	cl.push_back(page);
+	int j=0;
+	for(int i=0;i<8;i++) {
+		if ((i<start)||(i>=start+count)) cl.push_back(sp[i]); else {cl.push_back((*data)[j]);j++;}
+	}
+	Communicate(&cl, 10,0);
+	if (owi->log->last()>=OWLOG_ERROR) return -1;
+	std::vector<uint8_t> cl1;
+	cl1.push_back(0xBE);
+	cl1.push_back(page);
+	Communicate(&cl1, 2, 9);
+	if (owi->log->last()>=OWLOG_ERROR) return -1;
+	cl1.erase(cl1.begin());
+	cl1.erase(cl1.begin());
+	if (owi->calcCRC8(cl1)!=0) {
+		owi->log->set(OWLOG_WARNING,"CRC ERROR rereading DS2438 Scrachpad");
+	}
+	for(int i=0;i<8;i++) {
+		if (cl1[i]!=cl[i+2]) {
+			owi->log->set(OWLOG_ERROR,"Reread not equal, nothing copied");
+			return 0; 
+		}
+	}
+	cl.clear();
+	cl.push_back(0x48);
+	cl.push_back(page);
+	Communicate(&cl, 2, 0);
+	if (owi->log->last()>=OWLOG_ERROR) return -1;
+	return 1;
+}
+
+
+
 int owDeviceDS2438::setConfigByte(uint8_t cb) {
 	std::vector<uint8_t> sp;
 	int k;