Theaninova/Arduino-IRremote
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Allow any clock >= 8 MHz on Teensy 3.x

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This commit is contained in:
PaulStoffregen
2016-08-01 07:08:17 -07:00
parent 2d1b0f4737
commit e72008adf6
1 changed files with 8 additions and 9 deletions
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17
IRremoteInt.h
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@@ -526,19 +526,18 @@ EXTERN volatile irparams_t irparams;
#define ISR(f) void f(void) #define ISR(f) void f(void)
//----------------- //-----------------
#if (F_BUS == 48000000) #define CMT_PPS_DIV ((F_BUS + 7999999) / 8000000)
# define CMT_PPS_VAL 5 #if F_BUS < 8000000
#else #error IRremote requires at least 8 MHz on Teensy 3.x
# define CMT_PPS_VAL 2
#endif #endif
//----------------- //-----------------
#define TIMER_CONFIG_KHZ(val) ({ \ #define TIMER_CONFIG_KHZ(val) ({ \
SIM_SCGC4 |= SIM_SCGC4_CMT; \ SIM_SCGC4 |= SIM_SCGC4_CMT; \
SIM_SOPT2 |= SIM_SOPT2_PTD7PAD; \ SIM_SOPT2 |= SIM_SOPT2_PTD7PAD; \
CMT_PPS = CMT_PPS_VAL; \ CMT_PPS = CMT_PPS_DIV - 1; \
CMT_CGH1 = 2667 / val; \ CMT_CGH1 = ((F_BUS / CMT_PPS_DIV / 3000) + ((val)/2)) / (val); \
CMT_CGL1 = 5333 / val; \ CMT_CGL1 = ((F_BUS / CMT_PPS_DIV / 1500) + ((val)/2)) / (val); \
CMT_CMD1 = 0; \ CMT_CMD1 = 0; \
CMT_CMD2 = 30; \ CMT_CMD2 = 30; \
CMT_CMD3 = 0; \ CMT_CMD3 = 0; \
@@ -549,13 +548,13 @@ EXTERN volatile irparams_t irparams;
#define TIMER_CONFIG_NORMAL() ({ \ #define TIMER_CONFIG_NORMAL() ({ \
SIM_SCGC4 |= SIM_SCGC4_CMT; \ SIM_SCGC4 |= SIM_SCGC4_CMT; \
CMT_PPS = CMT_PPS_VAL; \ CMT_PPS = CMT_PPS_DIV - 1; \
CMT_CGH1 = 1; \ CMT_CGH1 = 1; \
CMT_CGL1 = 1; \ CMT_CGL1 = 1; \
CMT_CMD1 = 0; \ CMT_CMD1 = 0; \
CMT_CMD2 = 30; \ CMT_CMD2 = 30; \
CMT_CMD3 = 0; \ CMT_CMD3 = 0; \
CMT_CMD4 = 19; \ CMT_CMD4 = (F_BUS / 160000 + CMT_PPS_DIV / 2) / CMT_PPS_DIV - 31; \
CMT_OC = 0; \ CMT_OC = 0; \
CMT_MSC = 0x03; \ CMT_MSC = 0x03; \
}) })