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f4discovery: Limit clock to 48 MHz and stack 24 kiByte so that code can be compiled unchanged for F401Discovery too. 

TODO: Bump clk up to 84 MHz as soon as libopencm3 supports that speed.
This commit is contained in:
Uwe Bonnes 2013-10-14 17:02:59 +02:00 committed by Gareth McMullin
parent 536482f804
commit 09fbe783c5
2 changed files with 2 additions and 2 deletions
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2
src/platforms/f4discovery/Makefile.inc
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@ -7,7 +7,7 @@ CFLAGS += -Istm32/include -mcpu=cortex-m4 -mthumb \
-DSTM32F4 -DF4DISCOVERY -I../libopencm3/include \ -DSTM32F4 -DF4DISCOVERY -I../libopencm3/include \
-Iplatforms/stm32 -Iplatforms/stm32
LDFLAGS = -lopencm3_stm32f4 -Wl,--defsym,_stack=0x20020000 \ LDFLAGS = -lopencm3_stm32f4 -Wl,--defsym,_stack=0x20006000 \
-Wl,-T,platforms/stm32/f4discovery.ld -nostartfiles -lc -lnosys \ -Wl,-T,platforms/stm32/f4discovery.ld -nostartfiles -lc -lnosys \
-Wl,-Map=mapfile -mthumb -mcpu=cortex-m4 -Wl,-gc-sections \ -Wl,-Map=mapfile -mthumb -mcpu=cortex-m4 -Wl,-gc-sections \
-mfloat-abi=hard -mfpu=fpv4-sp-d16 \ -mfloat-abi=hard -mfpu=fpv4-sp-d16 \

2
src/platforms/f4discovery/platform.c
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@ -53,7 +53,7 @@ int platform_init(void)
scb_reset_core(); scb_reset_core();
} }
rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_168MHZ]); rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_48MHZ]);
/* Enable peripherals */ /* Enable peripherals */
rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN); rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN);