update i2c_oled example

examples/i2c_oled_display/.cargo/config

@@ -1,6 +1,6 @@
 
 [target.mipsel-unknown-none]
-rustflags = ["-C", "link-arg=-T32MX270F256B_procdefs.ld"]
+rustflags = ["-C", "link-arg=-Tlink.x"]
 
 [build]
 target = "mipsel-unknown-none"

examples/i2c_oled_display/Cargo.toml

@@ -13,14 +13,14 @@ default = ["pic32mx2xxfxxxb"]
 
 [dependencies]
 mips-mcu = { version = "0.3.0", features = ["critical-section-single-core"] }
-mips-rt = "0.3.0"
+mips-rt = "0.3.2"
+panic-halt = "0.2.0"
 embedded-hal = "0.2.7"
-critical-section = "1.0.0"
-tinylog = { git = "https://github.com/kiffie/pic32-rs.git" }
-pic32-hal = "0.9.0"
+critical-section = "1.1.1"
+pic32-hal = "0.10.0"
 ssd1306 = "0.8.0"
 embedded-graphics = "0.8.0"
-pic32-config-sector = "0.2.0"
+pic32-config-sector = "0.3.0"
 
 [profile.release]
 opt-level = 2

examples/i2c_oled_display/memory.x

@@ -0,0 +1,36 @@
+/*
+ * Memory region of PIC32MX devices
+ *
+ * LENGTH values need to be adapted to specific device variant.
+ * REGION_ALIAS functions are used to put the startup code either into the boot
+ * flash memory or into the program flash memory keeping the boot flash free for
+ * a boot loader.
+ */
+
+/* Symbols used for interrupt-vector table generation */
+PROVIDE(_vector_spacing = 0x0001);
+PROVIDE(_ebase_address = 0x9D000000);  /* first 4 KiB of program flash */
+
+MEMORY
+{
+    boot_flash          (rx)    : ORIGIN = 0xBFC00000, LENGTH = 3k - 0x10
+    program_flash       (rx)    : ORIGIN = 0x9D000000, LENGTH = 128k
+    sram                (w!x)   : ORIGIN = 0x80000000, LENGTH = 32k
+    configsfrs                  : ORIGIN = ORIGIN(boot_flash) + LENGTH(boot_flash), LENGTH = 0x10
+}
+
+REGION_ALIAS("exception_mem", program_flash)
+REGION_ALIAS("program_mem", program_flash)
+REGION_ALIAS("data_mem", sram)
+
+/* aliases for direct start without bootloader
+ * put the reset handler into the boot flash.
+ */
+REGION_ALIAS(reset_mem, boot_flash)
+
+/* aliases for bootloader support
+ * put the bootloader into the boot flash memory and the reset handler at the
+ * beginning of the normal program flash memory.
+ */
+/* REGION_ALIAS(reset_mem, program_flash)
+REGION_ALIAS(bootloader_mem, boot_flash) */