Merge pull request #9763 from gebart/pr/frdm-k64f-adc

frdm-k64f: Update ADC configuration 

boards/frdm-k64f/include/periph_conf.h

@@ -120,12 +120,32 @@ static const uart_conf_t uart_config[] = {
  * @{
  */
 static const adc_conf_t adc_config[] = {
-    { .dev = ADC0, .pin = GPIO_PIN(PORT_B, 10), .chan = 14 },
-    { .dev = ADC0, .pin = GPIO_PIN(PORT_B, 11), .chan = 15 },
-    { .dev = ADC0, .pin = GPIO_PIN(PORT_C, 11), .chan =  7 },
-    { .dev = ADC0, .pin = GPIO_PIN(PORT_C, 10), .chan =  6 },
-    { .dev = ADC0, .pin = GPIO_PIN(PORT_C,  8), .chan =  4 },
-    { .dev = ADC0, .pin = GPIO_PIN(PORT_C,  9), .chan =  5 }
+    [ 0] = { .dev = ADC0, .pin = GPIO_PIN(PORT_B,  2), .chan = 12 }, /* PTB2 (Arduino A0) */
+    [ 1] = { .dev = ADC0, .pin = GPIO_PIN(PORT_B,  3), .chan = 13 }, /* PTB3 (Arduino A1) */
+    [ 2] = { .dev = ADC1, .pin = GPIO_PIN(PORT_B, 10), .chan = 14 }, /* PTB10 (Arduino A2) */
+    [ 3] = { .dev = ADC1, .pin = GPIO_PIN(PORT_B, 11), .chan = 15 }, /* PTB11 (Arduino A3) */
+    [ 4] = { .dev = ADC1, .pin = GPIO_PIN(PORT_C, 11), .chan =  7 }, /* PTC11 (Arduino A4) */
+    [ 5] = { .dev = ADC1, .pin = GPIO_PIN(PORT_C, 10), .chan =  6 }, /* PTC10 (Arduino A5) */
+    [ 6] = { .dev = ADC0, .pin = GPIO_UNDEF          , .chan =  0 }, /* ADC0_DP0 */
+    [ 7] = { .dev = ADC0, .pin = GPIO_UNDEF          , .chan = 19 }, /* ADC0_DM0 */
+    [ 8] = { .dev = ADC0, .pin = GPIO_UNDEF          , .chan = (0 | ADC_SC1_DIFF_MASK) }, /* ADC0_DP0 - ADC0_DM0 */
+    [ 9] = { .dev = ADC1, .pin = GPIO_UNDEF          , .chan =  0 }, /* ADC1_DP0 */
+    [10] = { .dev = ADC1, .pin = GPIO_UNDEF          , .chan = 19 }, /* ADC1_DM0 */
+    [11] = { .dev = ADC1, .pin = GPIO_UNDEF          , .chan = (0 | ADC_SC1_DIFF_MASK) }, /* ADC1_DP0 - ADC1_DM0 */
+    [12] = { .dev = ADC0, .pin = GPIO_UNDEF          , .chan =  1 }, /* ADC0_DP1 */
+    [13] = { .dev = ADC0, .pin = GPIO_UNDEF          , .chan = 20 }, /* ADC0_DM1 */
+    [14] = { .dev = ADC0, .pin = GPIO_UNDEF          , .chan = (1 | ADC_SC1_DIFF_MASK) }, /* ADC0_DP1 - ADC0_DM1 */
+    [15] = { .dev = ADC1, .pin = GPIO_UNDEF          , .chan =  1 }, /* ADC1_DP1 */
+    [16] = { .dev = ADC1, .pin = GPIO_UNDEF          , .chan = 20 }, /* ADC1_DM1 */
+    [17] = { .dev = ADC1, .pin = GPIO_UNDEF          , .chan = (1 | ADC_SC1_DIFF_MASK) }, /* ADC1_DP1 - ADC1_DM1 */
+    /* internal: temperature sensor */
+    /* The temperature sensor has a very high output impedance, it must not be
+     * sampled using hardware averaging, or the sampled values will be garbage */
+    [18] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 26 },
+    /* internal: band gap */
+    /* Note: the band gap buffer uses a bit of current and is turned off by default,
+     * Set PMC->REGSC |= PMC_REGSC_BGBE_MASK before reading or the input will be floating */
+    [19] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 27 },
 };
 
 #define ADC_NUMOF           (sizeof(adc_config) / sizeof(adc_config[0]))