From 3b2da3e9e0f9c4d0abe35d82235fc46e48dea442 Mon Sep 17 00:00:00 2001
From: Gunar Schorcht <gunar@schorcht.net>
Date: Mon, 20 Mar 2023 18:36:05 +0100
Subject: [PATCH] sys: define CPU_RAM_SIZE as hex number

Some platforms such as RISC-V don't support numbers given with unit (32K)
---
 sys/Makefile.include | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/Makefile.include b/sys/Makefile.include
index 777e67f7e2..44334591ed 100644
--- 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)))