diff options
Diffstat (limited to 'fw')
| -rw-r--r-- | fw/main.c | 20 | ||||
| -rw-r--r-- | fw/transpose.c | 3 |
2 files changed, 17 insertions, 6 deletions
@@ -109,6 +109,9 @@ int shift_data() { spi_send(current_word>>16); strobe_leds(); + if (current_word&0xffff) + asm("bkpt"); + return 1<<active_bit; } @@ -153,6 +156,11 @@ void USART1_IRQHandler() { int addr = gaddr; /* FIXME DEBUG */ int cmd = addr>>5; addr &= 0x1F; + /* Overrun detected? */ + if (USART1->ISR & USART_ISR_ORE) { + USART1->ICR |= USART_ICR_ORECF; + USART1->RQR |= USART_RQR_MMRQ; + } /* Are we addressed? */ if (addr != this_addr) { /* We are not. Mute USART until next idle condition */ @@ -181,14 +189,16 @@ return; } void DMA1_Channel2_3_IRQHandler() { - /* DMA Transfer complete, re-enable receive interrupt */ - USART1->CR1 |= USART_CR1_RXNEIE; + /* DMA Transfer complete */ /* ...and disable this DMA channel */ USART1->CR3 &= ~USART_CR3_DMAR_Msk; DMA1_Channel3->CCR &= ~DMA_CCR_EN_Msk; /* Kick off formatting code in main loop outside interrupt context */ fb_op = FB_FORMAT; DMA1->IFCR |= DMA_IFCR_CGIF3; + /* re-enable receive interrupt */ + USART1->RQR |= USART_RQR_RXFRQ; + USART1->CR1 |= USART_CR1_RXNEIE; } void uart_config(void) { @@ -224,7 +234,7 @@ void uart_config(void) { | DMA_CCR_CIRC; NVIC_EnableIRQ(USART1_IRQn); - NVIC_SetPriority(USART1_IRQn, 3); + NVIC_SetPriority(USART1_IRQn, 4); NVIC_EnableIRQ(DMA1_Channel2_3_IRQn); NVIC_SetPriority(DMA1_Channel2_3_IRQn, 3); } @@ -303,7 +313,7 @@ int main(void) { /* Clear frame buffer */ read_fb->brightness = 1; for (int i=0; i<sizeof(read_fb->data)/sizeof(uint32_t); i++) { - read_fb->data[i] = 0xffffffff; /*FIXME debug replace with 0x00000000 */ + read_fb->data[i] = 0x00000000; } cfg_timer3(); @@ -319,7 +329,7 @@ int main(void) { } last_sys_time = sys_time; if (fb_op == FB_FORMAT) { - //transpose_data(rx_buf, read_fb); + transpose_data(rx_buf, write_fb); fb_op = FB_UPDATE; while (fb_op == FB_UPDATE) ; diff --git a/fw/transpose.c b/fw/transpose.c index 1c5f982..5060920 100644 --- a/fw/transpose.c +++ b/fw/transpose.c @@ -23,8 +23,8 @@ void transpose_data(volatile uint8_t *rx_buf, volatile struct framebuf *out_fb) } for (int bit=0; bit<2; bit++) { /* bits */ volatile uint32_t *frame_data = out_fb->frame[bit].data; - uint16_t *inp = &rxp->low; for (int seg=0; seg<8; seg++) { /* segments */ + uint16_t *inp = &rxp->low; uint32_t mask = 1 << bit << (seg*2); uint32_t acc = 0; for (int digit=0; digit<32; digit++) { @@ -34,6 +34,7 @@ void transpose_data(volatile uint8_t *rx_buf, volatile struct framebuf *out_fb) frame_data[seg] = acc; } } + out_fb->brightness = ((volatile struct framebuf *)rx_buf)->brightness; } |