Purge buffer before reset

cujomalainey · cujomalainey · commit 3c89ef8edaad · 2019-06-02T16:21:29.000-07:00
If we are resetting on a fresh boot and radio powered down with us there
is a chance we read the wrong StartUpMessage and end up sending config
messages before the radio is ready. This will purge the buffer before
the reset.
diff --git a/src/MainClasses/ANTPLUS_AntPlusRouter.cpp b/src/MainClasses/ANTPLUS_AntPlusRouter.cpp
@@ -146,6 +146,10 @@ uint8_t AntPlusRouter::resetRadio(uint8_t waitForStartup) {
             _profiles[i]->stop();
         }
     }
+    // purge buffer of any left over messages
+    do {
+        _ant->readPacket();
+    } while (_ant->getResponse().isAvailable());
     send(rs);
     _radioStarted = ANTPLUS_DRIVER_STATE_UNKNOWN;
     if (waitForStartup == ANTPLUS_RESET_WAIT_FOR_STARTUP) {

Original file line number	Diff line number	Diff line change
`@@ -146,6 +146,10 @@ uint8_t AntPlusRouter::resetRadio(uint8_t waitForStartup) {`
`146`	`146`	`_profiles[i]->stop();`
`147`	`147`	`}`
`148`	`148`	`}`
	`149`	`+ // purge buffer of any left over messages`
	`150`	`+ do {`
	`151`	`+ _ant->readPacket();`
	`152`	`+ } while (_ant->getResponse().isAvailable());`
`149`	`153`	`send(rs);`
`150`	`154`	`_radioStarted = ANTPLUS_DRIVER_STATE_UNKNOWN;`
`151`	`155`	`if (waitForStartup == ANTPLUS_RESET_WAIT_FOR_STARTUP) {`