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altos/stmf0: Use device ID as usb serial number if requested
[fw/altos]
/
src
/
stmf0
/
ao_adc_fast.c
diff --git
a/src/stmf0/ao_adc_fast.c
b/src/stmf0/ao_adc_fast.c
index 7d2a4fd7e005df9f684de464d3ef431d6326238e..f6740b0e34733d557f745756e81ba8276dd4be9b 100644
(file)
--- a/
src/stmf0/ao_adc_fast.c
+++ b/
src/stmf0/ao_adc_fast.c
@@
-23,7
+23,7
@@
uint16_t ao_adc_ring[AO_ADC_RING_SIZE] __attribute__((aligned(4)));
/* Maximum number of samples fetched per _ao_adc_start call */
#define AO_ADC_RING_CHUNK (AO_ADC_RING_SIZE >> 1)
/* Maximum number of samples fetched per _ao_adc_start call */
#define AO_ADC_RING_CHUNK (AO_ADC_RING_SIZE >> 1)
-uint16_t ao_adc_ring_head, ao_adc_ring_
tail
;
+uint16_t ao_adc_ring_head, ao_adc_ring_
remain
;
uint16_t ao_adc_running;
/*
uint16_t ao_adc_running;
/*
@@
-36,6
+36,7
@@
static void ao_adc_dma_done(int index)
{
(void) index;
ao_adc_ring_head += ao_adc_running;
{
(void) index;
ao_adc_ring_head += ao_adc_running;
+ ao_adc_ring_remain += ao_adc_running;
if (ao_adc_ring_head == AO_ADC_RING_SIZE)
ao_adc_ring_head = 0;
ao_adc_running = 0;
if (ao_adc_ring_head == AO_ADC_RING_SIZE)
ao_adc_ring_head = 0;
ao_adc_running = 0;
@@
-82,7
+83,6
@@
void
ao_adc_init(void)
{
uint32_t chselr;
ao_adc_init(void)
{
uint32_t chselr;
- int i;
/* Reset ADC */
stm_rcc.apb2rstr |= (1 << STM_RCC_APB2RSTR_ADCRST);
/* Reset ADC */
stm_rcc.apb2rstr |= (1 << STM_RCC_APB2RSTR_ADCRST);
@@
-156,12
+156,13
@@
ao_adc_init(void)
/* Shortest sample time */
stm_adc.smpr = STM_ADC_SMPR_SMP_1_5 << STM_ADC_SMPR_SMP;
/* Shortest sample time */
stm_adc.smpr = STM_ADC_SMPR_SMP_1_5 << STM_ADC_SMPR_SMP;
+ /* Turn off enable and start */
+ stm_adc.cr &= ~((1 << STM_ADC_CR_ADEN) | (1 << STM_ADC_CR_ADSTART));
+
/* Calibrate */
stm_adc.cr |= (1 << STM_ADC_CR_ADCAL);
/* Calibrate */
stm_adc.cr |= (1 << STM_ADC_CR_ADCAL);
- for (i = 0; i < 0xf000; i++) {
- if ((stm_adc.cr & (1 << STM_ADC_CR_ADCAL)) == 0)
- break;
- }
+ while ((stm_adc.cr & (1 << STM_ADC_CR_ADCAL)) != 0)
+ ;
/* Enable */
stm_adc.cr |= (1 << STM_ADC_CR_ADEN);
/* Enable */
stm_adc.cr |= (1 << STM_ADC_CR_ADEN);