Changed optimisation on F7X2 targets to '-O2' to save flash space.

2020-10-19 09:10:43 +02:00 · 2020-10-19 09:10:43 +02:00 · a54e31a06a
parent 1deeae0886
commit a54e31a06a
1 changed files with 3 additions and 0 deletions
--- a/make/mcu/STM32F7.mk
+++ b/make/mcu/STM32F7.mk
@ -150,6 +150,9 @@ LD_SCRIPT       = $(LINKER_DIR)/stm32_flash_f722.ld
 endif
 STARTUP_SRC     = startup_stm32f722xx.s
 MCU_FLASH_SIZE  := 512
+# Override the OPTIMISE_SPEED compiler setting to save flash space on these 512KB targets.
+# Performance is only slightly affected but around 50 kB of flash are saved.
+OPTIMISE_SPEED = -O2
 else
 $(error Unknown MCU for F7 target)
 endif