stm32/WEACTV20_F411: Add variant for V3_FLASH_8MB.

Blackpill v3.1 board with 8MB SPI Flash

Signed-off-by: Andrew Leech <[email protected]>

ports/stm32/boards/WEACTV20_F411/board.json

@@ -12,7 +12,8 @@
     "thumbnail": "",
     "url": "https://github.com/andrewleech/micropython/pull/new/wb55_pvd_handler",
     "variants": {
-        "FLASH_4MB": "SPI Flash 4MB"
+        "FLASH_4MB": "SPI Flash 4MB",
+        "V3_FLASH_8MB": "v3.1 board with 8MB SPI Flash"
     },
     "vendor": "WeAct Studio"
 }

ports/stm32/boards/WEACTV20_F411/mpconfigboard.h

@@ -86,9 +86,12 @@
 // SPI flash pins
 #define MICROPY_HW_SPIFLASH_CS          (pyb_pin_FLASH_CS)
 #define MICROPY_HW_SPIFLASH_SCK         (pyb_pin_FLASH_SCK)
-#define MICROPY_HW_SPIFLASH_MISO        (pyb_pin_FLASH_MISO)
 #define MICROPY_HW_SPIFLASH_MOSI        (pyb_pin_FLASH_MOSI)
-
+#ifdef WEACTV20_F411_V3
+#define MICROPY_HW_SPIFLASH_MISO        (pyb_pin_FLASH_MISO_V3)
+#else
+#define MICROPY_HW_SPIFLASH_MISO        (pyb_pin_FLASH_MISO_V2)
+#endif
 // Set flash size to 128MBit by default
 // note that this is in megabits, not megabytes
 // to convert megabytes to megabits, multiply by 8

ports/stm32/boards/WEACTV20_F411/mpconfigvariant_V3_FLASH_8MB.mk

@@ -0,0 +1,5 @@
+# Version 3.1 board has different pinout for spi flash with 8MB flash.
+CFLAGS += 
+  -DMICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE=0 \
+  -DMICROPY_HW_SPIFLASH_SIZE_BITS="(8 * 8 * 1024 * 1024)" \
+  -DWEACTV20_F411_V3=1

ports/stm32/boards/WEACTV20_F411/pins.csv

@@ -40,4 +40,5 @@ USB_DP,PA12
 FLASH_CS,PA4
 FLASH_SCK,PA5
 FLASH_MOSI,PA7
-FLASH_MISO,PB4
+FLASH_MISO_V2,PB4
+FLASH_MISO_V3,PA6