altos/stm32f103: Fix continuous ADC code

This needs the same hacks as the manual ADC code.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/stm32f1/ao_adc_stm.c b/src/stm32f1/ao_adc_stm.c
index 9523bd65e08bd245fa3d485690561be6f0ddc533..36021443e6989194903d9fb2ef7d8e5d53edea35 100644 (file)
--- a/src/stm32f1/ao_adc_stm.c
+++ b/src/stm32f1/ao_adc_stm.c
@@ -21,12 +21,12 @@
 
 static uint8_t                 ao_adc_ready;
 
-#define AO_ADC_CR2_VAL         ((HAS_ADC_TEMP << STM_ADC_CR2_TSVREFE) |\
-                                (0 << STM_ADC_CR2_SWSTART) |           \
+#define AO_ADC_CR2_VAL(start)  ((HAS_ADC_TEMP << STM_ADC_CR2_TSVREFE) |\
+                                ((start) << STM_ADC_CR2_SWSTART) |     \
                                 (0 << STM_ADC_CR2_JWSTART) |           \
                                 (0 << STM_ADC_CR2_EXTTRIG) |           \
-                                (0 << STM_ADC_CR2_EXTSEL) |            \
-                                (0 << STM_ADC_CR2_JEXTTRIG) | \
+                                (STM_ADC_CR2_EXTSEL_SWSTART << STM_ADC_CR2_EXTSEL) | \
+                                (0 << STM_ADC_CR2_JEXTTRIG) |          \
                                 (0 << STM_ADC_CR2_JEXTSEL) |           \
                                 (0 << STM_ADC_CR2_ALIGN) |             \
                                 (1 << STM_ADC_CR2_DMA) |               \
@@ -72,7 +72,9 @@ ao_adc_poll(void)
        ao_dma_set_isr(STM_DMA_INDEX(STM_DMA_CHANNEL_ADC1), ao_adc_done);
        ao_dma_start(STM_DMA_INDEX(STM_DMA_CHANNEL_ADC1));
 
-       stm_adc1.cr2 = AO_ADC_CR2_VAL | (1 << STM_ADC_CR2_SWSTART);
+       stm_adc1.cr2 = AO_ADC_CR2_VAL(0);
+       stm_adc1.cr2 = AO_ADC_CR2_VAL(0);
+       stm_adc1.cr2 = AO_ADC_CR2_VAL(1);
 }
 
 #ifdef AO_ADC_SQ1_NAME