[SAMD21] Don't issue a chip erase if address is 0

If a user selects "Nano33BLE" in the IDE but tries to flash a SAMD board, the commandline being used will not specify a base address, so the whole flash will be erased (the bootloader too)
arduino · Jul 30, 2020 · 89f3556 · 89f3556
1 parent 52e0a4a
commit 89f3556
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/D2xNvmFlash.cpp b/src/D2xNvmFlash.cpp
@@ -107,6 +107,10 @@ D2xNvmFlash::erase(uint32_t offset, uint32_t size)
 void
 D2xNvmFlash::eraseAll(uint32_t offset)
 {
+    if (offset == 0) {
+        // Not bailing out will provoke the bootloader to be erased
+        throw FlashEraseError();
+    }
     // Use the extended Samba command if available
     if (_samba.canChipErase())
     {