diff options
Diffstat (limited to 'driver_fw/main.c')
| -rw-r--r-- | driver_fw/main.c | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/driver_fw/main.c b/driver_fw/main.c index 8b78117..e3d1b94 100644 --- a/driver_fw/main.c +++ b/driver_fw/main.c @@ -91,9 +91,6 @@ int main(void) { | (2<<GPIO_MODER_MODER9_Pos) /* PA9 - SCL */ | (2<<GPIO_MODER_MODER10_Pos);/* PA10 - SDA */ - GPIOA->OSPEEDR = - (3<<GPIO_OSPEEDR_OSPEEDR4_Pos); - GPIOA->AFR[0] = (1<<GPIO_AFRL_AFSEL1_Pos) /* PA1 */ | (1<<GPIO_AFRL_AFSEL2_Pos) /* PA2 */ @@ -129,11 +126,10 @@ int main(void) { TIM3->CR1 = 0; /* Disable ARR preload (double-buffering) */ TIM3->PSC = 48-1; /* Prescaler 48 -> f=1MHz/T=1us */ TIM3->DIER = TIM_DIER_UIE; /* Enable update (overflow) interrupt */ - TIM3->CCMR1 = 6<<TIM_CCMR1_OC1M_Pos | TIM_CCMR1_OC1PE; /* Configure output compare unit 1 to PWM mode 1, enable CCR1 - preload */ - TIM3->CCER = TIM_CCER_CC1NE | TIM_CCER_CC1E; /* Confiugre CH1 to complementary outputs */ - TIM3->BDTR = TIM_BDTR_MOE | (0xc0 | (63-32))<<TIM_BDTR_DTG_Pos; /* Enable MOE on next update event, i.e. on initial timer load. - Set dead-time to 100us. */ + TIM3->CCMR1 = 6<<TIM_CCMR1_OC1M_Pos | TIM_CCMR1_OC1PE; /* Configure output compare unit 1 to PWM mode 1, enable CCR1 preload */ + TIM3->CCMR2 = 6<<TIM_CCMR2_OC4M_Pos | TIM_CCMR2_OC4PE; /* Configure output compare unit 4 to PWM mode 1, enable CCR4 preload */ + TIM3->CCER = TIM_CCER_CC1E | TIM_CCER_CC1P | TIM_CCER_CC4E | TIM_CCER_CC4P; /* Confiugre CH1 to complementary outputs */ + TIM3->BDTR = TIM_BDTR_MOE; /* Enable MOE on next update event, i.e. on initial timer load. */ TIM3->CR1 |= TIM_CR1_CEN; TIM3->ARR = 800-1; /* Set f=2.5kHz/T=0.4ms */ @@ -142,15 +138,10 @@ int main(void) { TIM3->EGR |= TIM_EGR_UG; NVIC_EnableIRQ(TIM3_IRQn); - NVIC_SetPriority(TIM3_IRQn, 3<<4); + NVIC_SetPriority(TIM3_IRQn, 2<<4); uint8_t txbuf[3] = {0x01, 0x05, 0x01}; int txpos = -1; - /* FIXME test code */ - //for (int i=0; i<sizeof(txbuf)/sizeof(txbuf[0]); i++) - // txbuf[i] = i; - /* FIXME end test code */ - int i = 0; while (42) { if (txstate.next_symbol == -NO_SYMBOL) { if (txpos == -1) @@ -159,18 +150,8 @@ int main(void) { txstate.next_symbol = xfr_8b10b_encode(&txstate.st, txbuf[txpos]); txpos++; - if (txpos >= sizeof(txbuf)/sizeof(txbuf[0])) { + if (txpos >= sizeof(txbuf)/sizeof(txbuf[0])) txpos = -1; - - i++; - if (i == 5) { - //txbuf[2] = random(); - //txbuf[2] <<= 1; - //if (!txbuf[2] & 0xff) - // txbuf[2] = 0x01; - i = 0; - } - } } } } @@ -197,13 +178,15 @@ void TIM3_IRQHandler() { sym >>= 1; if (sym == 1) { /* last bit shifted out */ if (txstate.next_symbol == -NO_SYMBOL) /*FIXME debug code*/ - //asm volatile("bkpt"); + asm volatile("bkpt"); sym = flipbits(txstate.next_symbol) | 1<<10; txstate.next_symbol = -NO_SYMBOL; } txstate.current_symbol = sym; - TIM3->CCR1 = bit ? 0xffff : 0x0000; +#define DEAD_TIME 100 + TIM3->CCR1 = bit ? 0xffff : DEAD_TIME; + TIM3->CCR4 = bit ? DEAD_TIME : 0xffff; } void NMI_Handler(void) { |