Extract bootloader specific code to bootloader.[ch]

2017-05-23 01:50:42 +02:00
parent 8686d554eb
commit 6e7bab2db4
3 changed files with 52 additions and 35 deletions
--- a/left/src/bootloader.h
+++ b/left/src/bootloader.h
@@ -0,0 +1,32 @@
+#ifndef __BOOTLOADER_H__
+#define __BOOTLOADER_H__
+
+// Includes:
+
+    #include <stdint.h>
+    #include <stddef.h>
+
+// Typedefs:
+
+    typedef struct {
+        uint32_t tag;                          // Magic number to verify bootloader configuration is valid. Must be set to 'kcfg'.
+        uint32_t reserved[3];
+        uint8_t enabledPeripherals;            // Bitfield of peripherals to enable.
+                                               // bit 0 - LPUART, bit 1 - I2C, bit 2 - SPI, bit 3 - CAN, bit 4 - USB
+        uint8_t i2cSlaveAddress;               // If not 0xFF, used as the 7-bit I2C slave address.
+                                               // If 0xFF, defaults to 0x10 for I2C slave address.
+        uint16_t peripheralDetectionTimeoutMs; // Timeout in milliseconds for active peripheral detection.
+                                               // If 0xFFFF, defaults to 5 seconds.
+        uint16_t reserved2[2];
+        uint32_t reserved3;
+        uint8_t clockFlags;   // The flags in the clockFlags configuration field are enabled if the corresponding bit is cleared (0).
+                              // bit 0 - HighSpeed Enable high speed mode (i.e., 48 MHz).
+        uint8_t clockDivider; // Inverted value of the divider to use for core and bus clocks when in high speed mode.
+    } bootloader_config_t;
+
+
+// Functions:
+
+    extern void JumpToBootloader(void);
+
+#endif