Add precompiler flag to disable sdram usage

Author: ohmtech-rdi

build-system/erbui/generators/daisy/code_template.cpp

@@ -14,6 +14,7 @@
 #include "erb/module_fnc.h"
 
 #include "erb/def.h"
+#include "erb/config.h"
 
 erb_DISABLE_WARNINGS_DAISY
 #include "daisy.h"
@@ -71,8 +72,8 @@ int main ()
 
    system.Init (config);
 
+#if (erb_SDRAM_USE_FLAG)
    // Init SDRAM
-
    // When using the bootloader priori to v6, SDRAM has been already configured
 
    if (
@@ -86,6 +87,7 @@ int main ()
       SdramHandle sdram;
       sdram.Init ();
    }
+#endif
 
    //-------------------------------------------------------------------------
 

include/erb/config.h

@@ -17,6 +17,16 @@
 
 /*\\\ CONFIG \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
 
+// 'erb_SDRAM_USE_FLAG' activates the use of SDRAM. If a module doesn't
+// actually use SDRAM, turning this flag off allows to save costs when
+// the daisy board can be ordered without the SDRAM chip.
+// If not defined, it will activate the SDRAM.
+
+#if !defined (erb_SDRAM_USE_FLAG)
+   #define erb_SDRAM_USE_FLAG true
+#endif
+
+
 // 'erb_SDRAM_MEM_POOL_SIZE' represents the maximum amount of memory that can
 // be used for all combined usages of 'SdramPtr' for an entire module.
 // If not defined, it will take the entire Daisy SDRAM memory, so 64MB.