Merge pull request #110 from adafruit/pxt0

CF2 support

Makefile

@@ -41,6 +41,9 @@ else
 NRFJPROG = nrfjprog
 endif
 
+# auto-detect BMP on macOS, otherwise have to specify
+BMP_PORT ?= $(shell ls -1 /dev/cu.usbmodem????????1 | head -1)
+
 ifeq ($(OS),Windows_NT)
 PROGFILES = C:/Program Files (x86)
 GNU_INSTALL_ROOT = $(PROGFILES)/GNU Tools ARM Embedded/7 2018-q2-update/bin/
@@ -67,6 +70,9 @@ NM      := '$(GNU_INSTALL_ROOT)$(GNU_PREFIX)-nm'
 OBJDUMP := '$(GNU_INSTALL_ROOT)$(GNU_PREFIX)-objdump'
 OBJCOPY := '$(GNU_INSTALL_ROOT)$(GNU_PREFIX)-objcopy'
 SIZE    := '$(GNU_INSTALL_ROOT)$(GNU_PREFIX)-size'
+GDB     := '$(GNU_INSTALL_ROOT)$(GNU_PREFIX)-gdb'
+
+GDB_BMP = arm-none-eabi-gdb -ex 'target extended-remote $(BMP_PORT)' -ex 'monitor swdp_scan' -ex 'attach 1'
 
 #function for removing duplicates in a list
 remduplicates = $(strip $(if $1,$(firstword $1) $(call remduplicates,$(filter-out $(firstword $1),$1))))
@@ -115,6 +121,7 @@ C_SOURCE_FILES += $(SRC_PATH)/boards.c
 C_SOURCE_FILES += $(SRC_PATH)/flash_nrf5x.c
 C_SOURCE_FILES += $(SRC_PATH)/dfu_ble_svc.c
 C_SOURCE_FILES += $(SRC_PATH)/dfu_init.c
+C_SOURCE_FILES += $(SRC_PATH)/pinconfig.c
 
 # nrfx
 C_SOURCE_FILES += $(NRFX_PATH)/drivers/src/nrfx_power.c
@@ -340,6 +347,13 @@ erase:
 	@echo Erasing chip
 	$(NRFJPROG) --eraseall -f nrf52
 
+gdbflash: $(BUILD)/$(MERGED_FNAME).hex
+	@echo Flashing: $<
+	@$(GDB_BMP) -nx --batch -ex 'load $<' -ex 'compare-sections' -ex 'kill'
+
+gdb: $(BUILD)/$(OUTPUT_FILENAME)-nosd.out
+	$(GDB_BMP) $<
+
 #******************* Compile rules *******************
 
 ## Create build directories

src/boards/arcade_feather_nrf52840_express/board.h

@@ -0,0 +1,139 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Ha Thach for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef _ARCARDE_FEATHER_NRF52840_H
+#define _ARCARDE_FEATHER_NRF52840_H
+
+#define _PINNUM(port, pin)    ((port)*32 + (pin))
+
+/*------------------------------------------------------------------*/
+/* LED
+ *------------------------------------------------------------------*/
+#define LEDS_NUMBER           2
+#define LED_PRIMARY_PIN       _PINNUM(1, 15)
+#define LED_SECONDARY_PIN     _PINNUM(1, 10)
+#define LED_STATE_ON          1
+
+#define LED_NEOPIXEL           _PINNUM(0, 16)
+#define NEOPIXELS_NUMBER      1
+#define BOARD_RGB_BRIGHTNESS  0x040404
+
+/*------------------------------------------------------------------*/
+/* BUTTON
+ *------------------------------------------------------------------*/
+#define BUTTONS_NUMBER        2
+#define BUTTON_1              _PINNUM(1, 02)
+#define BUTTON_2              _PINNUM(0, 10)
+#define BUTTON_PULL           NRF_GPIO_PIN_PULLUP
+
+/*------------------------------------------------------------------*/
+/* UART (only used by nRF52832)
+ *------------------------------------------------------------------*/
+#define RX_PIN_NUMBER         8
+#define TX_PIN_NUMBER         6
+#define CTS_PIN_NUMBER        0
+#define RTS_PIN_NUMBER        0
+#define HWFC                  false
+
+//--------------------------------------------------------------------+
+// BLE OTA
+//--------------------------------------------------------------------+
+#define BLEDIS_MANUFACTURER   "Adafruit Industries"
+#define BLEDIS_MODEL          "Feather nRF52840 Express"
+
+//--------------------------------------------------------------------+
+// USB
+//--------------------------------------------------------------------+
+#define USB_DESC_VID           0x239A
+#define USB_DESC_UF2_PID       0x0029
+#define USB_DESC_CDC_ONLY_PID  0x002A
+
+//------------- UF2 -------------//
+#define UF2_PRODUCT_NAME      "Adafruit Feather nRF52840 Express"
+#define UF2_VOLUME_LABEL      "ARCADE-N4"
+#define UF2_BOARD_ID          "nRF52840-Feather-revD"
+#define UF2_INDEX_URL         "https://www.adafruit.com/product/4062"
+
+#define BOOTLOADER_CONFIG_CF2                               \
+    /* CF2 START */                                         \
+    513675505, 539130489, /* magic */                       \
+    49 , 100       , /* used entries, total entries */      \
+    4  , 0x18      , /* PIN_BTN_A = PIN_RX */               \
+    5  , 0xa       , /* PIN_BTN_B = PIN_D2 */               \
+    13 , 0x29      , /* PIN_LED = PIN_D13 */                \
+    18 , 0xf       , /* PIN_MISO = PA15 */                  \
+    19 , 0xd       , /* PIN_MOSI = PA13 */                  \
+    20 , 0x23      , /* PIN_NEOPIXEL = PB03 */              \
+    21 , 0x18      , /* PIN_RX = PA24 */                    \
+    23 , 0xe       , /* PIN_SCK = PA14 */                   \
+    24 , 0xb       , /* PIN_SCL = PA11 */                   \
+    25 , 0xc       , /* PIN_SDA = PA12 */                   \
+    28 , 0x19      , /* PIN_TX = PA25 */                    \
+    32 , 0xe       , /* PIN_DISPLAY_SCK = PIN_SCK */        \
+    34 , 0xd       , /* PIN_DISPLAY_MOSI = PIN_MOSI */      \
+    35 , 0x1e      , /* PIN_DISPLAY_CS = PIN_A2 */          \
+    36 , 0x1c      , /* PIN_DISPLAY_DC = PIN_A3 */          \
+    37 , 0xa0      , /* DISPLAY_WIDTH = 160 */              \
+    38 , 0x80      , /* DISPLAY_HEIGHT = 128 */             \
+    39 , 0x80      , /* DISPLAY_CFG0 = 0x80 */              \
+    40 , 0x603     , /* DISPLAY_CFG1 = 0x603 */             \
+    41 , 0x20      , /* DISPLAY_CFG2 = 0x20 */              \
+    43 , 0x2       , /* PIN_DISPLAY_RST = PIN_A4 */         \
+    44 , 0x3       , /* PIN_DISPLAY_BL = PIN_A5 */          \
+    47 , 0x6       , /* PIN_BTN_LEFT = PIN_D11 */           \
+    48 , 0x1a      , /* PIN_BTN_RIGHT = PIN_D9 */           \
+    49 , 0x1b      , /* PIN_BTN_UP = PIN_D10 */             \
+    50 , 0x7       , /* PIN_BTN_DOWN = PIN_D6 */            \
+    51 , 0x8       , /* PIN_BTN_MENU = PIN_D12 */           \
+    56 , 0x2a      , /* PIN_LED2 = PB10 */                  \
+    60 , 0x19      , /* PIN_JACK_TX = PIN_TX */             \
+    100, 0x4       , /* PIN_A0 = PA04 */                    \
+    101, 0x5       , /* PIN_A1 = PA05 */                    \
+    102, 0x1e      , /* PIN_A2 = PA30 */                    \
+    103, 0x1c      , /* PIN_A3 = PA28 */                    \
+    104, 0x2       , /* PIN_A4 = PA02 */                    \
+    105, 0x3       , /* PIN_A5 = PA03 */                    \
+    152, 0xa       , /* PIN_D2 = PA10 */                    \
+    155, 0x28      , /* PIN_D5 = PB08 */                    \
+    156, 0x7       , /* PIN_D6 = PA07 */                    \
+    159, 0x1a      , /* PIN_D9 = PA26 */                    \
+    160, 0x1b      , /* PIN_D10 = PA27 */                   \
+    161, 0x6       , /* PIN_D11 = PA06 */                   \
+    162, 0x8       , /* PIN_D12 = PA08 */                   \
+    163, 0x29      , /* PIN_D13 = PB09 */                   \
+    200, 0x1       , /* NUM_NEOPIXELS = 1 */                \
+    204, 0x100000  , /* FLASH_BYTES = 0x100000 */           \
+    205, 0x40000   , /* RAM_BYTES = 0x40000 */              \
+    208, 0xd7688ea1, /* BOOTLOADER_BOARD_ID = 0xd7688ea1 */ \
+    209, 0xada52840, /* UF2_FAMILY = 0xada52840 */          \
+    210, 0x20      , /* PINS_PORT_SIZE = PA_32 */           \
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
+    0, 0, 0, 0, 0, 0 \
+    /* CF2 END */
+
+
+#endif // _ARCARDE_FEATHER_NRF52840_H
+

src/boards/arcade_feather_nrf52840_express/board.mk

@@ -0,0 +1 @@
+MCU_SUB_VARIANT = nrf52840

src/linker/nrf52840_s140_v6.ld

@@ -11,7 +11,9 @@ MEMORY
    *  those values do not match. The check is performed in main.c, see
    *  APP_ERROR_CHECK_BOOL(*((uint32_t *)NRF_UICR_BOOT_START_ADDRESS) == BOOTLOADER_REGION_START);
    */
-  FLASH (rx) : ORIGIN = 0xF4000, LENGTH = 0xFE000-0xF4000 /* 40 KB */
+  FLASH (rx) : ORIGIN = 0xF4000, LENGTH = 0xFE000-0xF4000-2048 /* 38 KB */
+
+  BOOTLOADER_CONFIG (r): ORIGIN = 0xFE000 - 2048, LENGTH = 2048
 
   /** Location of mbr params page in flash. */
   MBR_PARAMS_PAGE (rw) : ORIGIN = 0xFE000, LENGTH = 0x1000
@@ -50,6 +52,11 @@ SECTIONS
     PROVIDE( __stop_fs_data = .);
   } = 0
 
+  .bootloaderConfig :
+  {
+    KEEP(*(.bootloaderConfig))
+  } > BOOTLOADER_CONFIG
+
   /* Place the bootloader settings page in flash. */
   .bootloaderSettings(NOLOAD) :
   {

src/main.c

@@ -61,6 +61,7 @@
 #include "nrf_error.h"
 
 #include "boards.h"
+#include "uf2/uf2.h"
 
 #include "pstorage_platform.h"
 #include "nrf_mbr.h"
@@ -105,12 +106,17 @@ void usb_teardown(void);
 #define DFU_MAGIC_UF2_RESET             0x57
 
 #define DFU_DBL_RESET_MAGIC             0x5A1AD5      // SALADS
+#define DFU_DBL_RESET_APP               0x4ee5677e
 #define DFU_DBL_RESET_DELAY             500
 #define DFU_DBL_RESET_MEM               0x20007F7C
 
 #define BOOTLOADER_VERSION_REGISTER     NRF_TIMER2->CC[0]
 #define DFU_SERIAL_STARTUP_INTERVAL     1000
 
+// Allow for using reset button essentially to swap between application and bootloader.
+// This is controlled by a flag in the app and is the behavior of CPX and all Arcade boards when using MakeCode.
+#define APP_ASKS_FOR_SINGLE_TAP_RESET() (*((uint32_t*)(USER_FLASH_START + 0x200)) == 0x87eeb07c)
+
 // These value must be the same with one in dfu_transport_ble.c
 #define BLEGAP_EVENT_LENGTH             6
 #define BLEGATT_ATT_MTU_MAX             247
@@ -197,9 +203,13 @@ int main(void)
   _ota_dfu = _ota_dfu  || ( button_pressed(BUTTON_DFU) && button_pressed(BUTTON_FRESET) ) ;
 
   bool const valid_app = bootloader_app_is_valid(DFU_BANK_0_REGION_START);
+  bool const just_start_app = valid_app && !dfu_start && (*dbl_reset_mem) == DFU_DBL_RESET_APP;
+
+  if (!just_start_app && APP_ASKS_FOR_SINGLE_TAP_RESET())
+    dfu_start = 1;
 
   // App mode: register 1st reset and DFU startup (nrf52832)
-  if ( ! (dfu_start || !valid_app) )
+  if ( ! (just_start_app || dfu_start || !valid_app) )
   {
     // Register our first reset for double reset detection
     (*dbl_reset_mem) = DFU_DBL_RESET_MAGIC;
@@ -218,7 +228,10 @@ int main(void)
 #endif
   }
 
-  (*dbl_reset_mem) = 0;
+  if (APP_ASKS_FOR_SINGLE_TAP_RESET())
+    (*dbl_reset_mem) = DFU_DBL_RESET_APP;
+  else
+    (*dbl_reset_mem) = 0;
 
   if ( dfu_start || !valid_app )
   {
@@ -261,6 +274,9 @@ int main(void)
     // MBR must be init before start application
     if ( !sd_inited ) softdev_mbr_init();
 
+    // clear in case we kept DFU_DBL_RESET_APP there
+    (*dbl_reset_mem) = 0;
+
     // Select a bank region to use as application region.
     // @note: Only applications running from DFU_BANK_0_REGION_START is supported.
     bootloader_app_start(DFU_BANK_0_REGION_START);

src/pinconfig.c

@@ -0,0 +1,10 @@
+#include "boards.h"
+
+#ifdef BOOTLOADER_CONFIG_CF2
+
+__attribute__((used, section(".bootloaderConfig")))
+const uint32_t bootloaderConfig[] = {
+  BOOTLOADER_CONFIG_CF2
+};
+
+#endif