SDRAM: don't initalize custom allocator if start_address==0

pennam · Oct 27, 2020 · 6e557f4 · 6e557f4
1 parent 03902e6
commit 6e557f4
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/libraries/Portenta_SDRAM/SDRAM.cpp b/libraries/Portenta_SDRAM/SDRAM.cpp
@@ -24,8 +24,10 @@ int SDRAMClass::begin(uint32_t start_address) {
 		mpu_config_end();
 	}
 
-	printf("malloc_addblock: allocate %d bytes\n", SDRAM_END_ADDRESS - start_address);
-	malloc_addblock((void*)start_address, SDRAM_END_ADDRESS - start_address);
+	if (start_address) {
+		printf("malloc_addblock: allocate %d bytes\n", SDRAM_END_ADDRESS - start_address);
+		malloc_addblock((void*)start_address, SDRAM_END_ADDRESS - start_address);
+	}
 
 	return 1;
 }