#1117 #5.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@13782 27425a3e-05d8-49a3-a47f-9c15f0e5edd8

Author: gdisirio

os/hal/ports/STM32/LLD/ADCv4/hal_adc_lld.c

@@ -451,6 +451,22 @@ void adc_lld_start(ADCDriver *adcp) {
     adc_lld_vreg_on(adcp);
     adc_lld_calibrate(adcp);
 
+    /* Configure the ADC boost. */
+#if STM32_ADC_USE_ADC12 == TRUE
+    if (&ADCD1 == adcp) {
+      adcp->adcm->CR |= STM32_ADC12_BOOST;
+#if STM32_ADC_DUAL_MODE
+      adcp->adcs->CR |= STM32_ADC12_BOOST;
+#endif
+    }
+#endif
+
+#if STM32_ADC_USE_ADC3 == TRUE
+    if (&ADCD3 == adcp) {
+      adcp->adcm->CR |= STM32_ADC3_BOOST;
+    }
+#endif
+
     /* Master ADC enabled here in order to reduce conversions latencies.*/
     adc_lld_analog_on(adcp);
   }

os/hal/ports/STM32/LLD/ADCv4/hal_adc_lld.h

@@ -420,6 +420,44 @@
 #error "STM32_ADC3_CLOCK exceeding maximum frequency (STM32_ADCCLK_MAX)"
 #endif
 
+#if !defined(STM32_ENFORCE_H7_REV_XY)
+/* ADC boost checks.*/
+#if   STM32_ADC12_CLOCK >  6250000
+#define STM32_ADC12_BOOST               (1U << 8U)
+#elif STM32_ADC12_CLOCK > 12500000
+#define STM32_ADC12_BOOST               (2U << 8U)
+#elif STM32_ADC12_CLOCK > 25000000
+#define STM32_ADC12_BOOST               (3U << 8U)
+#else
+#define STM32_ADC12_BOOST               (0U << 8U)
+#endif
+
+#if   STM32_ADC3_CLOCK >  6250000
+#define STM32_ADC3_BOOST                (1U << 8U)
+#elif STM32_ADC3_CLOCK > 12500000
+#define STM32_ADC3_BOOST                (2U << 8U)
+#elif STM32_ADC3_CLOCK > 25000000
+#define STM32_ADC3_BOOST                (3U << 8U)
+#else
+#define STM32_ADC3_BOOST                (0U << 8U)
+#endif
+
+#else /* defined(STM32_ENFORCE_H7_REV_XY) */
+
+#if STM32_ADC12_CLOCK > 20000000
+#define STM32_ADC12_BOOST               (1U << 8U)
+#else
+#define STM32_ADC12_BOOST               (0U << 8U)
+#endif
+
+#if STM32_ADC3_CLOCK > 20000000
+#define STM32_ADC3_BOOST                (1U << 8U)
+#else
+#define STM32_ADC3_BOOST                (0U << 8U)
+#endif
+
+#endif /* defined(STM32_ENFORCE_H7_REV_XY) */
+
 #if !defined(STM32_DMA_REQUIRED)
 #define STM32_DMA_REQUIRED
 #endif