support 10 neopixel of cplayground

Author: hathach

README.md

@@ -76,7 +76,7 @@ For other boards, please check the board definition for details.
 
 ### Making your own UF2
 
-To create your own UF2 DFU update image, simply use the [Python conversion script](https://github.com/Microsoft/uf2/blob/master/utils/uf2conv.py) on a .bin file or .hex file, specifying the family as **0xADA52840**. Be sure to compile your application to start at 0x26000 (152k). If using a .bin file with the conversion script you must specify this with the -b switch.
+To create your own UF2 DFU update image, simply use the [Python conversion script](https://github.com/Microsoft/uf2/blob/master/utils/uf2conv.py) on a .bin file or .hex file, specifying the family as **0xADA52840**. If using a .bin file with the conversion script you must specify application address with the -b switch, this address depend on the SoftDevice size/version e.g S140 v6 is 0x26000 
 
 To create a UF2 image from a .bin file:
 ```

src/boards.c

@@ -34,7 +34,9 @@
 #define SCHED_QUEUE_SIZE                    30                               /**< Maximum number of events in the scheduler queue. */
 
 #if defined(LED_NEOPIXEL) || defined(LED_RGB_RED_PIN)
+  void neopixel_init(void);
   void neopixel_write(uint8_t *pixels);
+  void neopixel_teardown(void);
 #endif
 
 //------------- IMPLEMENTATION -------------//
@@ -67,9 +69,8 @@ void board_init(void)
   led_pwm_init(LED_SECONDARY, LED_SECONDARY_PIN);
   #endif
 
-// use neopixel for use enumeration
+  // use neopixel for use enumeration
 #if defined(LED_NEOPIXEL) || defined(LED_RGB_RED_PIN)
-  extern void neopixel_init(void);
   neopixel_init();
 #endif
 
@@ -93,7 +94,6 @@ void board_teardown(void)
   led_pwm_teardown();
 
 #if defined(LED_NEOPIXEL) || defined(LED_RGB_RED_PIN)
-  extern void neopixel_teardown(void);
   neopixel_teardown();
 #endif
   // Button
@@ -297,9 +297,9 @@ void led_state(uint32_t state)
 #define MAGIC_T1H              13UL | (0x8000) // 0.8125us
 #define CTOPVAL                20UL            // 1.25us
 
-#define NEO_NUMBYTE  3
+#define BYTE_PER_PIXEL  3
 
-static uint16_t pixels_pattern[NEO_NUMBYTE * 8 + 2];
+static uint16_t pixels_pattern[NEOPIXELS_NUMBER*BYTE_PER_PIXEL * 8 + 2];
 
 // use PWM1 for neopixel
 void neopixel_init(void)
@@ -347,29 +347,35 @@ void neopixel_init(void)
 
 void neopixel_teardown(void)
 {
-  uint8_t grb[3] = { 0, 0, 0 };
+  uint8_t rgb[3] = { 0, 0, 0 };
 
   NRFX_DELAY_US(50);  // wait for previous write is complete
 
-  neopixel_write(grb);
+  neopixel_write(rgb);
   NRFX_DELAY_US(50);  // wait for this write
 
   pwm_teardown(NRF_PWM1);
 }
 
-// write 3 bytes color to a built-in neopixel
+// write 3 bytes color RGB to built-in neopixel
 void neopixel_write (uint8_t *pixels)
 {
-  uint8_t grb[NEO_NUMBYTE] = {pixels[1], pixels[2], pixels[0]};
+  // convert RGB to GRB
+  uint8_t grb[BYTE_PER_PIXEL] = {pixels[1], pixels[2], pixels[0]};
   uint16_t pos = 0;    // bit position
-  for ( uint16_t n = 0; n < NEO_NUMBYTE; n++ )
-  {
-    uint8_t pix = grb[n];
 
-    for ( uint8_t mask = 0x80; mask > 0; mask >>= 1 )
+  // Set all neopixel to same value
+  for (uint16_t n = 0; n < NEOPIXELS_NUMBER; n++ )
+  {
+    for(uint8_t c = 0; c < BYTE_PER_PIXEL; c++)
     {
-      pixels_pattern[pos] = (pix & mask) ? MAGIC_T1H : MAGIC_T0H;
-      pos++;
+      uint8_t const pix = grb[c];
+
+      for ( uint8_t mask = 0x80; mask > 0; mask >>= 1 )
+      {
+        pixels_pattern[pos] = (pix & mask) ? MAGIC_T1H : MAGIC_T0H;
+        pos++;
+      }
     }
   }
 
@@ -409,8 +415,8 @@ void neopixel_init(void)
 
 void neopixel_teardown(void)
 {
-  uint8_t grb[3] = { 0, 0, 0 };
-  neopixel_write(grb);
+  uint8_t rgb[3] = { 0, 0, 0 };
+  neopixel_write(rgb);
   nrf_gpio_cfg_default(LED_RGB_RED_PIN);
   nrf_gpio_cfg_default(LED_RGB_GREEN_PIN);
   nrf_gpio_cfg_default(LED_RGB_BLUE_PIN);

src/boards/circuitplayground_nrf52840/board.h

@@ -32,10 +32,11 @@
  *------------------------------------------------------------------*/
 #define LEDS_NUMBER           1
 #define LED_PRIMARY_PIN       _PINNUM(1, 14)
+#define LED_STATE_ON          1
+
 #define LED_NEOPIXEL          _PINNUM(0, 13)
 #define NEOPIXELS_NUMBER      10
 #define BOARD_RGB_BRIGHTNESS  0x040404
-#define LED_STATE_ON          1
 
 /*------------------------------------------------------------------*/
 /* BUTTON
@@ -68,7 +69,7 @@
 //------------- UF2 -------------//
 #define UF2_PRODUCT_NAME   "Adafruit Circuit Playground nRF52840"
 #define UF2_VOLUME_LABEL   "CPLAYBTBOOT"
-#define UF2_BOARD_ID       "CircuitPlayground-nRF52840-revD"
+#define UF2_BOARD_ID       "nRF52840-CircuitPlayground-revD"
 #define UF2_INDEX_URL      "https://www.adafruit.com/product/4300"
 
 #endif // _FEATHER_NRF52840_H

src/boards/feather_nrf52840_express/board.h

@@ -33,10 +33,12 @@
 #define LEDS_NUMBER           2
 #define LED_PRIMARY_PIN       _PINNUM(1, 15)
 #define LED_SECONDARY_PIN     _PINNUM(1, 10)
-#define LED_NEOPIXEL          16
-#define BOARD_RGB_BRIGHTNESS  0x040404
 #define LED_STATE_ON          1
 
+#define LED_NEOPIXEL           _PINNUM(0, 16)
+#define NEOPIXELS_NUMBER      1
+#define BOARD_RGB_BRIGHTNESS  0x040404
+
 /*------------------------------------------------------------------*/
 /* BUTTON
  *------------------------------------------------------------------*/

src/boards/metro_nrf52840_express/board.h

@@ -33,9 +33,11 @@
 #define LEDS_NUMBER           2
 #define LED_PRIMARY_PIN       _PINNUM(1, 13)
 #define LED_SECONDARY_PIN     _PINNUM(1, 15)
+#define LED_STATE_ON          1
+
 #define LED_NEOPIXEL          _PINNUM(0, 13)
+#define NEOPIXELS_NUMBER      1
 #define BOARD_RGB_BRIGHTNESS  0x040404
-#define LED_STATE_ON          1
 
 /*------------------------------------------------------------------*/
 /* BUTTON