Diff: Devices/DS1920.cpp

Revision:

6:a8c83a2e6fa4

Parent:

0:f77ad7f72d04

--- a/Devices/DS1920.cpp	Fri Jan 19 10:25:02 2018 -0600
+++ b/Devices/DS1920.cpp	Wed Jan 23 13:11:04 2019 -0600
@@ -36,35 +36,25 @@
 
 namespace MaximInterface {
 
-enum DS1920_CMDS {
-  WRITE_SCRATCHPAD = 0x4E,
-  READ_SCRATCHPAD = 0xBE,
-  COPY_SCRATCHPAD = 0x48,
-  CONV_TEMPERATURE = 0x44,
-  RECALL = 0xB8
-};
-
-error_code DS1920::writeScratchpad(uint_least8_t th, uint_least8_t tl) {
+error_code DS1920::writeScratchpad(uint_least8_t th, uint_least8_t tl) {  
   error_code result = selectRom(*master);
   if (!result) {
-    const uint_least8_t sendBlock[] = {WRITE_SCRATCHPAD, th, tl};
-    result =
-        master->writeBlock(sendBlock, sizeof(sendBlock) / sizeof(sendBlock[0]));
+    const uint_least8_t sendBlock[] = {0x4E, th, tl};
+    result = master->writeBlock(sendBlock);
   }
   return result;
 }
 
-error_code DS1920::readScratchpad(Scratchpad & scratchpad) {
+error_code DS1920::readScratchpad(Scratchpad::span scratchpad) {  
   error_code result = selectRom(*master);
   if (!result) {
-    result = master->writeByte(READ_SCRATCHPAD);
+    result = master->writeByte(0xBE);
     if (!result) {
-      result = master->readBlock(scratchpad.data(), scratchpad.size());
+      result = master->readBlock(scratchpad);
       if (!result) {
         uint_least8_t receivedCrc;
         result = master->readByte(receivedCrc);
-        if (!result && (receivedCrc !=
-                        calculateCrc8(scratchpad.data(), scratchpad.size()))) {
+        if (!result && (receivedCrc != calculateCrc8(scratchpad))) {
           result = make_error_code(CrcError);
         }
       }
@@ -73,36 +63,34 @@
   return result;
 }
 
-error_code DS1920::copyScratchpad() {
+error_code DS1920::copyScratchpad() {  
   error_code result = selectRom(*master);
   if (!result) {
-    result =
-        master->writeByteSetLevel(COPY_SCRATCHPAD, OneWireMaster::StrongLevel);
+    result = master->writeByteSetLevel(0x48, OneWireMaster::StrongLevel);
     if (!result) {
-      (*sleep)(10);
+      sleep->invoke(10);
       result = master->setLevel(OneWireMaster::NormalLevel);
     }
   }
   return result;
 }
 
-error_code DS1920::convertTemperature() {
+error_code DS1920::convertTemperature() {  
   error_code result = selectRom(*master);
   if (!result) {
-    result =
-        master->writeByteSetLevel(CONV_TEMPERATURE, OneWireMaster::StrongLevel);
+    result = master->writeByteSetLevel(0x44, OneWireMaster::StrongLevel);
     if (!result) {
-      (*sleep)(750);
+      sleep->invoke(750);
       result = master->setLevel(OneWireMaster::NormalLevel);
     }
   }
   return result;
 }
 
-error_code DS1920::recallEeprom() {
+error_code DS1920::recallEeprom() {  
   error_code result = selectRom(*master);
   if (!result) {
-    result = master->writeByte(RECALL);
+    result = master->writeByte(0xB8);
   }
   return result;
 }
@@ -133,7 +121,7 @@
   if (result) {
     return result;
   }
-  DS1920::Scratchpad scratchpad;
+  DS1920::Scratchpad::array scratchpad;
   result = ds1920.readScratchpad(scratchpad);
   if (result) {
     return result;