void _read () { }
void _fstat() { }
+#define AO_DMA_TEST_INDEX STM_DMA_INDEX(4)
+
static void
ao_dma_test(void) {
static char src[20] = "hello, world";
static char dst[20];
dst[0] = '\0';
- ao_dma_set_transfer(STM_DMA_INDEX(1), dst, src, 13,
+ ao_dma_set_transfer(AO_DMA_TEST_INDEX, dst, src, 13,
(1 << STM_DMA_CCR_MEM2MEM) |
(STM_DMA_CCR_PL_LOW << STM_DMA_CCR_PL) |
(STM_DMA_CCR_MSIZE_8 << STM_DMA_CCR_MSIZE) |
(1 << STM_DMA_CCR_PINC) |
(0 << STM_DMA_CCR_CIRC) |
(STM_DMA_CCR_DIR_MEM_TO_PER << STM_DMA_CCR_DIR));
- ao_dma_start(STM_DMA_INDEX(1));
- cli();
- while (!ao_dma_done[STM_DMA_INDEX(1)])
- ao_sleep(&ao_dma_done[STM_DMA_INDEX(1)]);
- sei();
+ ao_dma_start(AO_DMA_TEST_INDEX);
+ ao_arch_critical(
+ while (!ao_dma_done[AO_DMA_TEST_INDEX])
+ ao_sleep(&ao_dma_done[AO_DMA_TEST_INDEX]);
+ );
+ ao_dma_done_transfer(AO_DMA_TEST_INDEX);
printf ("copied %s\n", dst);
}
}
}
+
+
+static void
+ao_temp (void)
+{
+ struct ao_adc adc;
+ int temp;
+
+ ao_adc_get(&adc);
+
+ /*
+ * r = (110 - 25) / (ts_cal_hot - ts_cal_cold)
+ * 25 + (110 - 25) * (temp - ts_cal_cold) / (ts_cal_hot - ts_cal_cold)
+ */
+ temp = 25 + (110 - 25) * (adc.temp - stm_temp_cal.ts_cal_cold) / (stm_temp_cal.ts_cal_hot - stm_temp_cal.ts_cal_cold);
+ printf ("temp: %d\n", temp);
+}
+
__code struct ao_cmds ao_demo_cmds[] = {
{ ao_dma_test, "D\0DMA test" },
{ ao_spi_write, "W\0SPI write" },
{ ao_spi_read, "R\0SPI read" },
+ { ao_temp, "t\0Show temp" },
{ 0, NULL }
};
// ao_lcd_font_init();
ao_spi_init();
+ ao_timer_set_adc_interval(100);
+
+ ao_adc_init();
+
ao_cmd_register(&ao_demo_cmds[0]);
- stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIOCEN);
- stm_gpio_set(&stm_gpioc, 12, 1);
- stm_moder_set(&stm_gpioc, 12, STM_MODER_OUTPUT);
- stm_otyper_set(&stm_gpioc, 12, STM_OTYPER_PUSH_PULL);
-
ao_start_scheduler();
return 0;
}