sys: define CPU_RAM_SIZE as hex number

gschorcht · gschorcht · commit a3b3ec9bcff7 · 2023-03-21T15:40:18.000+01:00
Some platforms such as RISC-V don't support numbers given with unit (32K)
diff --git a/sys/Makefile.include b/sys/Makefile.include
@@ -165,7 +165,7 @@ endif
 
 ifneq (,$(filter tinyusb_dfu usbus_dfu riotboot_reset,$(USEMODULE)))
   CFLAGS += -DCPU_RAM_BASE=$(RAM_START_ADDR)
-  CFLAGS += -DCPU_RAM_SIZE=$(RAM_LEN)
+  CFLAGS += -DCPU_RAM_SIZE=$(shell printf "0x%x" $$(($(RAM_LEN:%K=%*1024))))
 endif
 
 ifneq (,$(filter test_utils_netdev_eth_minimal,$(USEMODULE)))
