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Expand file tree Collapse file tree Original file line number Diff line number Diff line change @@ -18,14 +18,15 @@ FATFSSRC=fatfs
1818CC3KSRC =cc3k
1919DFU =../tools/dfu.py
2020TARGET =PYBOARD
21+ OSC_VALUE =8000000
2122
2223AS = arm-none-eabi-as
2324CC = arm-none-eabi-gcc
2425LD = arm-none-eabi-ld
2526OBJCOPY = arm-none-eabi-objcopy
2627SIZE = arm-none-eabi-size
2728
28- CFLAGS_CORTEX_M4 = -mthumb -mtune=cortex-m4 -mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant -Wdouble-promotion -DSTM32F40_41xxx -DUSE_STDPERIPH_DRIVER -DHSE_VALUE=8000000
29+ CFLAGS_CORTEX_M4 = -mthumb -mtune=cortex-m4 -mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant -Wdouble-promotion -DSTM32F40_41xxx -DUSE_STDPERIPH_DRIVER -DHSE_VALUE=$( OSC_VALUE )
2930CFLAGS = -I. -I$(PY_SRC ) -I$(FATFSSRC ) -I$(CMSIS ) -I$(STMSRC ) -Wall -ansi -std=gnu99 $(CFLAGS_CORTEX_M4 ) -D$(TARGET )
3031# CFLAGS += -I$(STMOTGSRC) -DUSE_HOST_MODE -DUSE_OTG_MODE
3132
Original file line number Diff line number Diff line change 5454 *-----------------------------------------------------------------------------
5555 * APB2 Prescaler | 2
5656 *-----------------------------------------------------------------------------
57- * HSE Frequency(Hz) | 8000000 changed dpgeorge
57+ * HSE Frequency(Hz) | HSE_VALUE
5858 *-----------------------------------------------------------------------------
59- * PLL_M | 8 changed dpgeorge
59+ * PLL_M | (HSE_VALUE/1000000)
6060 *-----------------------------------------------------------------------------
6161 * PLL_N | 336
6262 *-----------------------------------------------------------------------------
251251
252252/************************* PLL Parameters *************************************/
253253/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
254- #define PLL_M 8
254+ #define PLL_M (HSE_VALUE/1000000)
255255/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
256256#define PLL_Q 7
257257
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