diff options
Diffstat (limited to 'testhal/STM32/STM32F4xx/DAC_DUAL/main.c')
| -rw-r--r-- | testhal/STM32/STM32F4xx/DAC_DUAL/main.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/testhal/STM32/STM32F4xx/DAC_DUAL/main.c b/testhal/STM32/STM32F4xx/DAC_DUAL/main.c index e57d8a3f2..b6d46b284 100644 --- a/testhal/STM32/STM32F4xx/DAC_DUAL/main.c +++ b/testhal/STM32/STM32F4xx/DAC_DUAL/main.c @@ -89,11 +89,11 @@ static void error_cb1(DACDriver *dacp, dacerror_t err) { static const DACConfig dac1cfg1 = {
init: 2047U,
- datamode: DAC_DHRM_12BIT_RIGHT
+ datamode: DAC_DHRM_12BIT_RIGHT_DUAL
};
static const DACConversionGroup dacgrpcfg1 = {
- num_channels: 1U,
+ num_channels: 2U,
end_cb: end_cb1,
error_cb: error_cb1,
trigger: DAC_TRG(0)
@@ -125,10 +125,11 @@ int main(void) { chSysInit();
/*
- * Starting DAC1 driver, setting up the output pin as analog as suggested
+ * Starting DAC1 driver, setting up the output pins as analog as suggested
* by the Reference Manual.
*/
palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG);
+ palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG);
dacStart(&DACD1, &dac1cfg1);
/*
@@ -138,8 +139,10 @@ int main(void) { /*
* Starting a continuous conversion.
+ * Note, the buffer size is divided by two because two elements are fetched
+ * for each transfer.
*/
- dacStartConversion(&DACD1, &dacgrpcfg1, dac_buffer, DAC_BUFFER_SIZE);
+ dacStartConversion(&DACD1, &dacgrpcfg1, dac_buffer, DAC_BUFFER_SIZE / 2U);
gptStartContinuous(&GPTD6, 2U);
/*
|