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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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41 lines
No EOL
1.4 KiB
C
41 lines
No EOL
1.4 KiB
C
#ifndef CLK_CONFIG_H_
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#define CLK_CONFIG_H_
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#include "FreeRTOSConfig.h"
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#include "protected_io/ccp.h"
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#if ( configCPU_CLOCK_HZ == 20000000 )
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#define CLK_init() { \
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_PROTECTED_WRITE(CLKCTRL.MCLKCTRLA, CLKCTRL_CLKSEL_OSC20M_gc); \
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_PROTECTED_WRITE(CLKCTRL.MCLKCTRLB, 0); \
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}
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#elif ( configCPU_CLOCK_HZ == 10000000 )
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#define CLK_init() { \
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ccp_write_io((void *)&(CLKCTRL.MCLKCTRLA), CLKCTRL_CLKSEL_OSC20M_gc); \
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ccp_write_io((void *)&(CLKCTRL.MCLKCTRLB), CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm); \
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}
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#elif ( configCPU_CLOCK_HZ == 5000000 )
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#define CLK_init() { \
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ccp_write_io((void *)&(CLKCTRL.MCLKCTRLA), CLKCTRL_CLKSEL_OSC20M_gc); \
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ccp_write_io((void *)&(CLKCTRL.MCLKCTRLB), CLKCTRL_PDIV_4X_gc | CLKCTRL_PEN_bm); \
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}
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#elif ( configCPU_CLOCK_HZ == 2000000 )
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#define CLK_init() { \
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ccp_write_io((void *)&(CLKCTRL.MCLKCTRLA), CLKCTRL_CLKSEL_OSC20M_gc); \
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ccp_write_io((void *)&(CLKCTRL.MCLKCTRLB), CLKCTRL_PDIV_10X_gc | CLKCTRL_PEN_bm); \
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}
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#else
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#error The selected clock frequency is not supported. Choose a value from the NOTE in FreeRTOSConfig.h.
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#endif
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#endif /* CLK_CONFIG_H_ */ |