git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7936 35acf78f-673a-0410-8e92-d51de3d6d3f4

2 files changed, 33 insertions, 18 deletions

diff --git a/os/hal/ports/STM32/LLD/DACv1/dac_lld.c b/os/hal/ports/STM32/LLD/DACv1/dac_lld.c
index 32573a781..8afa4e505 100644
--- a/os/hal/ports/STM32/LLD/DACv1/dac_lld.c
+++ b/os/hal/ports/STM32/LLD/DACv1/dac_lld.c
@@ -260,14 +260,18 @@ void dac_lld_start(DACDriver *dacp) {
       rccEnableDAC2(false);

     }

 #endif

-  }

 

-  /* DAC initially disabled.*/

+    /* Enabling DAC in SW triggering mode initially, initializing data to

+       zero.*/

 #if STM32_DAC_DUAL_MODE == FALSE

-  dacp->params->dac->CR = dacp->params->regmask;

+    dacp->params->dac->CR &= dacp->params->regmask;

+    dacp->params->dac->CR |= DAC_CR_EN1 << dacp->params->regshift;

+    *(&dacp->params->dac->DHR12R1 + dacp->params->dataoffset) = 0U;

 #else

-  dacp->params->dac->CR = 0U;

+    dacp->params->dac->CR = DAC_CR_EN2 | DAC_CR_EN1;

+    dacp->params->dac->DAC_DHR12RD = 0U;

 #endif

+  }

 }

 

 /**

@@ -285,10 +289,11 @@ void dac_lld_stop(DACDriver *dacp) {
     /* DMA channel released.*/

     dmaStreamRelease(dacp->params->dma);

 

+    /* Disabling DAC.*/

+    dacp->params->dac->CR &= dacp->params->regmask;

+

 #if STM32_DAC_USE_DAC1_CH1

     if (&DACD1 == dacp) {

-      dacp->params->dac->CR &= ~DAC_CR_EN1;

-

       if ((dacp->params->dac->CR & DAC_CR_EN2) == 0U) {

         rccDisableDAC1(false);

       }

@@ -297,8 +302,6 @@ void dac_lld_stop(DACDriver *dacp) {
 

 #if STM32_DAC_USE_DAC1_CH2

     if (&DACD2 == dacp) {

-      dacp->params->dac->CR &= ~DAC_CR_EN2;

-

       if ((dacp->params->dac->CR & DAC_CR_EN1) == 0U) {

         rccDisableDAC1(false);

       }

@@ -319,7 +322,7 @@ void dac_lld_start_conversion(DACDriver *dacp) {
   uint32_t cr, dmamode;

 

 #if STM32_DAC_DUAL_MODE == FALSE

-  switch (dacp->grpp->dhrm) {

+  switch (dacp->grpp->datamode) {

   /* Sets the DAC data register */

   case DAC_DHRM_12BIT_RIGHT:

     dmaStreamSetPeripheral(dacp->params->dma, &dacp->params->dac->DHR12R1 +

@@ -372,10 +375,9 @@ void dac_lld_start_conversion(DACDriver *dacp) {
 

   /* DAC configuration.*/

 #if STM32_DAC_DUAL_MODE == FALSE

-  cr = DAC_CR_DMAEN1 | (dacp->grpp->cr_tsel << 3) |

-       DAC_CR_TEN1 | DAC_CR_EN1;

-  dacp->params->dac->CR = (dacp->params->dac->CR & dacp->params->regmask) |

-                          (cr << dacp->params->regshift);

+  cr = DAC_CR_DMAEN1 | (dacp->grpp->trigger << 3) | DAC_CR_TEN1 | DAC_CR_EN1;

+  dacp->params->dac->CR &= dacp->params->regmask;

+  dacp->params->dac->CR |= cr << dacp->params->regshift;

 #else

   /* TODO: Dual.*/

 #endif

@@ -396,9 +398,12 @@ void dac_lld_stop_conversion(DACDriver *dacp) {
 

   dmaStreamDisable(dacp->params->dma);

 #if STM32_DAC_DUAL_MODE == FALSE

-  dacp->params->dac->CR = dacp->params->regmask;

+  dacp->params->dac->CR  = dacp->params->regmask;

+  dacp->params->dac->CR |= DAC_CR_EN1 << dacp->params->regshift;

+  *(&dacp->params->dac->DHR12R1 + dacp->params->dataoffset) = 0U;

 #else

-  dacp->params->dac->CR = 0U;

+  dacp->params->dac->CR = DAC_CR_EN2 | DAC_CR_EN1;

+  dacp->params->dac->DAC_DHR12RD = 0U;

 #endif

 }

 

diff --git a/os/hal/ports/STM32/LLD/DACv1/dac_lld.h b/os/hal/ports/STM32/LLD/DACv1/dac_lld.h
index fe0e21006..36842f295 100644
--- a/os/hal/ports/STM32/LLD/DACv1/dac_lld.h
+++ b/os/hal/ports/STM32/LLD/DACv1/dac_lld.h
@@ -33,6 +33,16 @@
 /* Driver constants.                                                         */

 /*===========================================================================*/

 

+/**

+ * @name    DAC trigger modes

+ * @{

+ */

+#define DAC_TRG_MASK                    7U

+#define DAC_TRG(n)                      (n)

+#define DAC_TRG_EXT                     6U

+#define DAC_TRG_SW                      7U

+/** @} */

+

 /*===========================================================================*/

 /* Driver pre-compile time settings.                                         */

 /*===========================================================================*/

@@ -293,7 +303,7 @@ typedef void (*daccallback_t)(DACDriver *dacp,
  *                      callback

  * @param[in] err       ADC error code

  */

-typedef void (*dacerrorcallback_t)(DACDriver *adcp, dacerror_t err);

+typedef void (*dacerrorcallback_t)(DACDriver *dacp, dacerror_t err);

 

 /**

  * @brief   Samples alignment and size mode.

@@ -329,14 +339,14 @@ typedef struct {
   /**

    * @brief   DAC data holding register mode.

    */

-  dacdhrmode_t              dhrm;

+  dacdhrmode_t              datamode;

   /**

    * @brief   DAC initialization data.

    * @note    This field contains the (not shifted) value to be put into the

    *          TSEL field of the DAC CR register during initialization. All

    *          other fields are handled internally.

    */

-  uint32_t                  cr_tsel;

+  uint32_t                  trigger;

 } DACConversionGroup;

 

 /**