wrap up build cmake & make support for max3421, to enable the Host driver, 'MAX3421_HOST=1' must be added as part of make/cmake command

examples/make.mk

@@ -73,7 +73,6 @@ ifeq ($(FAMILY),)
 else
   # Include Family and Board specific defs
   include $(TOP)/$(FAMILY_PATH)/family.mk
-
   SRC_C += $(subst $(TOP)/,,$(wildcard $(TOP)/$(FAMILY_PATH)/*.c))
 endif
 
@@ -84,9 +83,6 @@ CROSS_COMPILE ?= arm-none-eabi-
 
 ifeq ($(TOOLCHAIN),iar)
 CC := iccarm
-endif
-
-ifeq ($(CC),iccarm)
 USE_IAR = 1
 endif
 
@@ -105,13 +101,12 @@ endif
 #-------------- Source files and compiler flags --------------
 # tinyusb makefile
 include $(TOP)/src/tinyusb.mk
+SRC_C += $(TINYUSB_SRC_C)
 
 # Include all source C in family & board folder
 SRC_C += hw/bsp/board.c
 SRC_C += $(subst $(TOP)/,,$(wildcard $(TOP)/$(BOARD_PATH)/*.c))
 
-SRC_C += $(TINYUSB_SRC_C)
-
 INC += \
   $(TOP)/$(FAMILY_PATH) \
   $(TOP)/src \
@@ -119,6 +114,12 @@ INC += \
 BOARD_UPPER = $(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,$(subst z,Z,$(subst -,_,$(BOARD))))))))))))))))))))))))))))
 CFLAGS += -DBOARD_$(BOARD_UPPER)
 
+# use max3421 as host controller
+ifeq (${MAX3421_HOST},1)
+  SRC_C += src/portable/analog/max3421/hcd_max3421.c
+  CFLAGS += -DCFG_TUH_MAX3421=1
+endif
+
 # Log level is mapped to TUSB DEBUG option
 ifneq ($(LOG),)
   CMAKE_DEFSYM +=	-DLOG=$(LOG)