First init.

libraries/mcu-renderer/examples/helloworld-stm32-st7789/boards/stm32f103c8.json

@@ -0,0 +1,33 @@
+{
+    "build": {
+      "cpu": "cortex-m3",
+      "extra_flags": "-DSTM32 -DSTM32F1 -DSTM32F103x8",
+      "f_cpu": "72000000L",
+      "mcu": "stm32f103c8t6",
+      "product_line": "STM32F103x8"
+    },
+    "debug": {
+      "default_tools": [
+        "stlink"
+      ],
+      "openocd_target": "stm32f1x",
+      "svd_path": "STM32F103xx.svd"
+    },
+    "frameworks": [
+      "libopencm3"
+    ],
+    "name": "STM32F103C8",
+    "upload": {
+      "maximum_ram_size": 20480,
+      "maximum_size": 65536,
+      "protocol": "stlink",
+      "protocols": [
+        "cmsis-dap",
+        "stlink",
+        "blackmagic"
+      ]
+    },
+    "url": "https://www.st.com/",
+    "vendor": "ST"
+  }
+