stm32/boards/NUCLEO_F767ZI: Update pins, peripherals and total flash.

- Removed remarks on DFU/OCD in mpconfigboard.h because deploy-stlink works
  fine too.
- Added more UARTs, I2C, corrected SPI, CAN, etc; verified against CubeMX.
- Adapted pins.csv to remove errors, add omissions, etc. according to
  NUCLEO-144 User Manual.
- Changed linker file stm32f767.ld to reflect correct size of the Flash.
- Tested with LAN and SD card.

ports/stm32/boards/NUCLEO_F767ZI/mpconfigboard.h

-// This board is only confirmed to operate using DFU mode and openocd.
-// DFU mode can be accessed by setting BOOT0 (see schematics)
-// To use openocd run "OPENOCD_CONFIG=boards/openocd_stm32f7.cfg" in
-// the make command.
+// Note: if the board shows odd behaviour check the option bits and make sure nDBANK is
+// set to make the 2MByte space continuous instead of divided into two 1MByte segments.
 
 #define MICROPY_HW_BOARD_NAME       "NUCLEO-F767ZI"
 #define MICROPY_HW_MCU_NAME         "STM32F767"
@@ -31,16 +29,25 @@ void NUCLEO_F767ZI_board_early_init(void);
 #define MICROPY_HW_UART2_CTS        (pin_D3)
 #define MICROPY_HW_UART3_TX         (pin_D8)
 #define MICROPY_HW_UART3_RX         (pin_D9)
-#define MICROPY_HW_UART6_TX         (pin_G14)
-#define MICROPY_HW_UART6_RX         (pin_G9)
+#define MICROPY_HW_UART6_TX         (pin_C6)
+#define MICROPY_HW_UART6_RX         (pin_C7)
+#define MICROPY_HW_UART5_TX         (pin_B6)
+#define MICROPY_HW_UART5_RX         (pin_B12)
+#define MICROPY_HW_UART7_TX         (pin_F7)
+#define MICROPY_HW_UART7_RX         (pin_F6)
+#define MICROPY_HW_UART8_TX         (pin_E1)
+#define MICROPY_HW_UART8_RX         (pin_E0)
+
 #define MICROPY_HW_UART_REPL        PYB_UART_3
 #define MICROPY_HW_UART_REPL_BAUD   115200
 
 // I2C busses
 #define MICROPY_HW_I2C1_SCL         (pin_B8)
 #define MICROPY_HW_I2C1_SDA         (pin_B9)
-#define MICROPY_HW_I2C3_SCL         (pin_H7)
-#define MICROPY_HW_I2C3_SDA         (pin_H8)
+#define MICROPY_HW_I2C2_SCL         (pin_F1)
+#define MICROPY_HW_I2C2_SDA         (pin_F0)
+#define MICROPY_HW_I2C4_SCL         (pin_F14)
+#define MICROPY_HW_I2C4_SDA         (pin_F15)
 
 // SPI
 #define MICROPY_HW_SPI3_NSS         (pin_A4)
@@ -49,10 +56,8 @@ void NUCLEO_F767ZI_board_early_init(void);
 #define MICROPY_HW_SPI3_MOSI        (pin_B5)
 
 // CAN busses
-#define MICROPY_HW_CAN1_TX          (pin_B9)
-#define MICROPY_HW_CAN1_RX          (pin_B8)
-#define MICROPY_HW_CAN2_TX          (pin_B13)
-#define MICROPY_HW_CAN2_RX          (pin_B12)
+#define MICROPY_HW_CAN1_TX          (pin_D1)
+#define MICROPY_HW_CAN1_RX          (pin_D0)
 
 // USRSW is pulled low. Pressing the button makes the input go high.
 #define MICROPY_HW_USRSW_PIN        (pin_C13)

ports/stm32/boards/NUCLEO_F767ZI/pins.csv

@@ -33,19 +33,58 @@ D22,PB5
 D23,PB3
 D24,PA4
 D25,PB4
+D26,PB6
+D27,PB2
+D28,PD13
+D29,PD12
+D30,PD11
+D31,PE2
+D32,PA0
+D33,PB0
+D34,PE0
+D35,PB11
+D36,PB10
+D37,PE15
+D38,PE14
+D39,PE12
+D40,PE10
+D41,PE7
+D42,PE8
+D43,PC8
+D44,PC9
+D45,PC10
+D46,PC11
+D47,PC12
+D48,PD2
+D49,PG2
+D50,PG3
+D51,PD7
+D52,PD6
+D53,PD5
+D54,PD4
+D55,PD3
+D56,PE2
+D57,PE4
+D58,PE5
+D59,PE6
+D60,PE3
+D61,PF8
+D62,PF7
+D63,PF9
+D64,PG1
+D65,PG0
+D66,PD1
+D67,PD0
+D68,PF0
+D69,PF1
+D70,PF2
+D71,PA7
+DAC1,PA4
+DAC2,PA5
 LED1,PB0
 LED2,PB7
 LED3,PB14
 SW,PC13
-TP1,PH2
-TP2,PI8
-TP3,PH15
-AUDIO_INT,PD6
-AUDIO_SDA,PH8
-AUDIO_SCL,PH7
-EXT_SDA,PB9
-EXT_SCL,PB8
-EXT_RST,PG3
 SD_D0,PC8
 SD_D1,PC9
 SD_D2,PC10
@@ -53,29 +92,38 @@ SD_D3,PC11
 SD_CMD,PD2
 SD_CK,PC12
 SD_SW,PG2
-LCD_BL_CTRL,PK3
-LCD_INT,PI13
-LCD_SDA,PH8
-LCD_SCL,PH7
-OTG_FS_POWER,PD5
-OTG_FS_OVER_CURRENT,PD4
-OTG_HS_OVER_CURRENT,PE3
+OTG_FS_POWER,PG6
+OTG_FS_OVER_CURRENT,PG7
 USB_VBUS,PA9
 USB_ID,PA10
 USB_DM,PA11
 USB_DP,PA12
-USB_POWER,PG6
-VCP_TX,PD8
-VCP_RX,PD9
 UART2_TX,PD5
 UART2_RX,PD6
 UART2_RTS,PD4
 UART2_CTS,PD3
-UART6_TX,PG14
-UART6_RX,PG9
-SPI_B_NSS,PA4
-SPI_B_SCK,PB3
-SPI_B_MOSI,PB5
+VCP_TX,PD8
+VCP_RX,PD9
+UART3_TX,PD8
+UART3_RX,PD9
+UART5_TX,PB6
+UART5_RX,PB12
+UART6_TX,PC6
+UART6_RX,PC7
+UART7_TX,PF7
+UART7_RX,PF6
+UART8_TX,PE1
+UART8_RX,PE0
+SPI3_NSS,PA4
+SPI3_SCK,PB3
+SPI3_MISO,PB4
+SPI3_MOSI,PB5
+I2C1_SDA,PB9
+I2C1_SCL,PB8
+I2C2_SDA,PF0
+I2C2_SCL,PF1
+I2C4_SCL,PF14
+I2C4_SDA,PF15
 ETH_MDC,PC1
 ETH_MDIO,PA2
 ETH_RMII_REF_CLK,PA1
@@ -85,3 +133,5 @@ ETH_RMII_RXD1,PC5
 ETH_RMII_TX_EN,PG11
 ETH_RMII_TXD0,PG13
 ETH_RMII_TXD1,PB13
+SWDIO,PA13
+SWDCLK,PA14

ports/stm32/boards/stm32f767.ld

@@ -5,7 +5,7 @@
 /* Specify the memory areas */
 MEMORY
 {
-    FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 1024K
+    FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 2048K
     FLASH_ISR (rx)  : ORIGIN = 0x08000000, LENGTH = 32K     /* sector 0, 32K */
     FLASH_APP (rx)  : ORIGIN = 0x08008000, LENGTH = 2016K   /* sectors 1-11 3x32K 1*128K 7*256K */
     FLASH_FS (r)    : ORIGIN = 0x08008000, LENGTH = 96K     /* sectors 1, 2, 3 (32K each) */