diff options
Diffstat (limited to 'FreeRTOS/Demo/AVR_ATMega4809_IAR/clk_config.h')
| -rw-r--r-- | FreeRTOS/Demo/AVR_ATMega4809_IAR/clk_config.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/FreeRTOS/Demo/AVR_ATMega4809_IAR/clk_config.h b/FreeRTOS/Demo/AVR_ATMega4809_IAR/clk_config.h new file mode 100644 index 000000000..510efa342 --- /dev/null +++ b/FreeRTOS/Demo/AVR_ATMega4809_IAR/clk_config.h @@ -0,0 +1,38 @@ +#ifndef CLK_CONFIG_H_ +#define CLK_CONFIG_H_ + +#include "FreeRTOSConfig.h" +#include "protected_io/ccp.h" + +#if ( configCPU_CLOCK_HZ == 20000000 ) + + #define CLK_init() ccp_write_io((void *)&(CLKCTRL.MCLKCTRLA), CLKCTRL_CLKSEL_OSC20M_gc); + +#elif ( configCPU_CLOCK_HZ == 10000000 ) + + #define CLK_init() { \ + ccp_write_io((void *)&(CLKCTRL.MCLKCTRLA), CLKCTRL_CLKSEL_OSC20M_gc); \ + ccp_write_io((void *)&(CLKCTRL.MCLKCTRLB), CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm); \ + } + +#elif ( configCPU_CLOCK_HZ == 5000000 ) + + #define CLK_init() { \ + ccp_write_io((void *)&(CLKCTRL.MCLKCTRLA), CLKCTRL_CLKSEL_OSC20M_gc); \ + ccp_write_io((void *)&(CLKCTRL.MCLKCTRLB), CLKCTRL_PDIV_4X_gc | CLKCTRL_PEN_bm); \ + } + +#elif ( configCPU_CLOCK_HZ == 2000000 ) + + #define CLK_init() { \ + ccp_write_io((void *)&(CLKCTRL.MCLKCTRLA), CLKCTRL_CLKSEL_OSC20M_gc); \ + ccp_write_io((void *)&(CLKCTRL.MCLKCTRLB), CLKCTRL_PDIV_10X_gc | CLKCTRL_PEN_bm); \ + } + +#else + + #error The selected clock frequency is not supported. Choose a value from the NOTE in FreeRTOSConfig.h. + +#endif + +#endif /* CLK_CONFIG_H_ */
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