Frozenverse/TLC5940
1
0
Fork 0
mirror of https://github.com/PaulStoffregen/Tlc5940 synced 2025-09-27 18:12:22 +02:00
Code Issues Packages Projects Releases Wiki Activity

Teensy 3.1 port, BLANK & XLAT working

Browse Source
This commit is contained in:
PaulStoffregen
2014-06-08 13:04:31 -07:00
parent 8e4273385f
commit 03bdbd60bb
4 changed files with 54 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
Tlc5940.cpp
View File

@@ -65,8 +65,18 @@ static inline void Tlc5940_interrupt(void)
}
#if defined(__AVR__)
ISR(TIMER1_OVF_vect) { Tlc5940_interrupt(); }
ISR(TIMER1_OVF_vect)
{
Tlc5940_interrupt();
}
#elif defined(__arm__) && defined(TEENSYDUINO)
void ftm1_isr(void)
{
uint32_t sc = FTM1_SC;
if (sc & 0x80) FTM1_SC = sc & 0x7F;
Tlc5940_interrupt();
}
#endif
@@ -152,24 +162,33 @@ void Tlc5940::init(uint16_t initialValue)
TCCR1B |= _BV(CS10); // no prescale, (start pwm output)
#elif defined(__arm__) && defined(TEENSYDUINO)
SIM_SCGC4 |= SIM_SCGC4_CMT;
CMT_MSC = 0;
CMT_PPS = 0;
CMT_CGH1 = TLC_TIMER_TEENSY3_NORMAL_CGH1;
CMT_CGL1 = TLC_TIMER_TEENSY3_NORMAL_CGL1;
CMT_CMD1 = 1;
CMT_CMD2 = 0;
CMT_CMD3 = 0;
CMT_CMD4 = 0;
CMT_OC = 0x60;
CMT_MSC = 0x01;
CORE_PIN5_CONFIG = PORT_PCR_MUX(2)|PORT_PCR_DSE|PORT_PCR_SRE;
clear_pin(XLAT_DDR, XLAT_PIN);
SIM_SCGC4 |= SIM_SCGC4_CMT;
CMT_MSC = 0;
CMT_PPS = 0;
CMT_CGH1 = TLC_TIMER_TEENSY3_NORMAL_CGH1;
CMT_CGL1 = TLC_TIMER_TEENSY3_NORMAL_CGL1;
CMT_CMD1 = 1;
CMT_CMD2 = 0;
CMT_CMD3 = 0;
CMT_CMD4 = 0;
CMT_OC = 0x60;
CMT_MSC = 0x01;
CORE_PIN5_CONFIG = PORT_PCR_MUX(2)|PORT_PCR_DSE|PORT_PCR_SRE;
FTM1_SC = 0;
FTM1_MOD = TLC_TIMER_TEENSY3_NORMAL_MOD;
FTM1_CNT = 0;
FTM1_C0SC = 0x24;
FTM1_C1SC = 0x24;
FTM1_C0V = TLC_TIMER_TEENSY3_NORMAL_MOD - TLC_TIMER_TEENSY3_NORMAL_CV;
FTM1_C1V = TLC_TIMER_TEENSY3_NORMAL_MOD - TLC_TIMER_TEENSY3_NORMAL_CV - 1;
FTM1_SC = FTM_SC_CLKS(1) | FTM_SC_CPWMS;
NVIC_ENABLE_IRQ(IRQ_FTM1);
CORE_PIN4_CONFIG = PORT_PCR_MUX(3)|PORT_PCR_DSE|PORT_PCR_SRE;
#endif
update();
}
void cmt_isr(void) { uint8_t tmp = CMT_MSC; tmp = CMT_CMD2; }
/** Clears the grayscale data array, #tlc_GSData, but does not shift in any
data. This call should be followed by update() if you are turning off
all the outputs. */