Add RYMCU F103 and F407 boards (#816)

Author: Hugh-rymcu

boards/rymcu_f407ve.json

@@ -0,0 +1,62 @@
+{
+  "build": {
+    "arduino": {
+      "variant_h": "variant_generic.h"
+    },
+    "core": "stm32",
+    "cpu": "cortex-m4",
+    "extra_flags": "-DSTM32F407xx -DARDUINO_GENERIC_F407VETX -DSTM32F4",
+    "f_cpu": "168000000L",
+    "hwids": [
+      [
+        "0x1EAF",
+        "0x0003"
+      ],
+      [
+        "0x0483",
+        "0x3748"
+      ]
+    ],
+    "mcu": "stm32f407vet6",
+    "product_line": "STM32F407xx",
+    "variant": "STM32F4xx/F407V(E-G)T_F417V(E-G)T"
+  },
+  "debug": {
+    "default_tools": [
+      "stlink"
+    ],
+    "jlink_device": "STM32F407VE",
+    "openocd_extra_args": [
+      "-c",
+      "reset_config none"
+    ],
+    "openocd_target": "stm32f4x",
+    "svd_path": "STM32F40x.svd"
+  },
+  "frameworks": [
+    "arduino",
+    "cmsis",
+    "stm32cube",
+    "libopencm3"
+  ],
+  "name": "RYMCU STM32F407VE (192k RAM. 512k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 131072,
+    "maximum_size": 514288,
+    "protocol": "stlink",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "serial",
+      "dfu"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://rymcu.com/products",
+  "vendor": "RYMCU"
+}

boards/rymcu_nebulapi_f103ve.json

@@ -0,0 +1,55 @@
+{
+  "build": {
+    "arduino": {
+      "variant_h": "variant_generic.h"
+    },
+    "core": "stm32",
+    "cpu": "cortex-m3",
+    "extra_flags": "-DSTM32F103xE -DSTM32F1 -DARDUINO_GENERIC_F103VETX",
+    "f_cpu": "72000000L",
+    "hwids": [
+      [
+        "0x1EAF",
+        "0x0003"
+      ],
+      [
+        "0x1EAF",
+        "0x0004"
+      ]
+    ],
+    "mcu": "stm32f103vet6",
+    "product_line": "STM32F103xE",
+    "variant": "STM32F1xx/F103V(C-D-E)(H-T)"
+  },
+  "debug": {
+    "jlink_device": "STM32F103VE",
+    "openocd_target": "stm32f1x",
+    "svd_path": "STM32F103xx.svd"
+  },
+  "frameworks": [
+    "arduino",
+    "cmsis",
+    "libopencm3",
+    "stm32cube"
+  ],
+  "name": "RYMCU Nebula Pi F103VE (64k RAM. 512k Flash)",
+  "upload": {
+    "disable_flushing": false,
+    "maximum_ram_size": 65536,
+    "maximum_size": 524288,
+    "protocol": "stlink",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "blackmagic",
+      "serial",
+      "dfu"
+    ],
+    "require_upload_port": true,
+    "use_1200bps_touch": false,
+    "wait_for_upload_port": false
+  },
+  "url": "https://rymcu.com/products",
+  "vendor": "RYMCU"
+}