Merge pull request #251 from jpconstantineau/nrf52833-updates

nRF52833 updates to UF2/memory map for nRF52833 boards

Author: hathach

src/boards/bluemicro_nrf52833/pinconfig.c

@@ -8,8 +8,8 @@ const uint32_t bootloaderConfig[] =
   CFG_MAGIC0, CFG_MAGIC1,                       // magic
   5, 100,                                       // used entries, total entries
 
-  204, 0x100000,                                // FLASH_BYTES = 0x100000
-  205, 0x40000,                                 // RAM_BYTES = 0x40000
+  204, 0x80000,                                 // FLASH_BYTES
+  205, 0x20000,                                 // RAM_BYTES
   208, (USB_DESC_VID << 16) | USB_DESC_UF2_PID, // BOOTLOADER_BOARD_ID = USB VID+PID, used for verification when updating bootloader via uf2
   209, 0xada52840,                              // UF2_FAMILY = 0xada52840
   210, 0x20,                                    // PINS_PORT_SIZE = PA_32

src/boards/pca10100/pinconfig.c

@@ -8,8 +8,8 @@ const uint32_t bootloaderConfig[] =
   CFG_MAGIC0, CFG_MAGIC1,                       // magic
   5, 100,                                       // used entries, total entries
 
-  204, 0x100000,                                // FLASH_BYTES = 0x100000
-  205, 0x40000,                                 // RAM_BYTES = 0x40000
+  204, 0x80000,                                 // FLASH_BYTES
+  205, 0x20000,                                 // RAM_BYTES
   208, (USB_DESC_VID << 16) | USB_DESC_UF2_PID, // BOOTLOADER_BOARD_ID = USB VID+PID, used for verification when updating bootloader via uf2
   209, 0xada52840,                              // UF2_FAMILY = 0xada52840
   210, 0x20,                                    // PINS_PORT_SIZE = PA_32

src/usb/uf2/uf2cfg.h

@@ -14,7 +14,11 @@
 #define CFG_UF2_FAMILY_BOOT_ID    0xd663823c
 
 #define CFG_UF2_NUM_BLOCKS        0x10109     // just under 32MB
-#define CFG_UF2_FLASH_SIZE        (1024*1024) // 1 MB
+#if defined(NRF52833_XXAA)
+    #define CFG_UF2_FLASH_SIZE        0x80000 // 512 kB
+#else
+    #define CFG_UF2_FLASH_SIZE        (1024*1024) // 1 MB
+#endif
 
 // Application Address Space
 #define USER_FLASH_START          MBR_SIZE // skip MBR included in SD hex