Kernel

java.lang.Object
- org.deepjava.runtime.iMX6.Kernel

All Implemented Interfaces:

Iarm32, IdeepCompilerConstants, Icolibri_iMX6, IiMX6
```
public class Kernel
extends Object
implements Iarm32, Icolibri_iMX6, IdeepCompilerConstants
```
This is the kernel class. It provides basic functionalities and does the booting-up.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`clockFrequency`	Clock frequency of the processor.
`(package private) static int`	`cmdAddr`
`(package private) static int`	`loopAddr`
`(package private) static int`	`stackEndPattern`

Fields inherited from interface org.deepjava.runtime.arm32.Iarm32
ACTLR, CPACR, CPSR, D0, D1, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D2, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D3, D30, D31, D4, D5, D6, D7, D8, D9, FPSCR, ID_ISAR0, ID_ISAR1, ID_ISAR2, ID_ISAR3, LR, LR_ABT, LR_FIQ, LR_IRQ, LR_MON, LR_SVC, LR_UND, LR_USR, MIDR, MPIDR, MPUIR, PC, R0, R1, R10, R10_FIQ, R11, R11_FIQ, R12, R12_FIQ, R2, R3, R4, R5, R6, R7, R8, R8_FIQ, R9, R9_FIQ, S0, S1, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S2, S20, S21, S22, S23, S24, S25, S26, S27, S28, S29, S3, S30, S31, S4, S5, S6, S7, S8, S9, SCTLR, SP, SP_ABT, SP_FIQ, SP_IRQ, SP_MON, SP_SVC, SP_UND, SP_USR, SPSR_ABT, SPSR_FIQ, SPSR_IRQ, SPSR_MON, SPSR_SVC, SPSR_UND

Fields inherited from interface org.deepjava.runtime.iMX6.Icolibri_iMX6
excpCodeBase, excpCodeSize, extRamBase, extRamSize, heapSize, sysTabBaseAddr

Fields inherited from interface org.deepjava.runtime.IdeepCompilerConstants
cblkClinitAddrOffset, cblkCodeBaseOffset, cblkCodeSizeOffset, cblkConstBlockSizeOffset, cblkNofPtrsOffset, cblkPtrAddr0Offset, cblkVarBaseOffset, cblkVarSizeOffset, stClassConstOffset, stHeapOffset, stKernelClinitAddr, stNofStacks, stResetOffset, stSizeToCopy, stStackOffset

Fields inherited from interface org.deepjava.runtime.iMX6.IiMX6
GPIO2_DR, GPIO2_GDIR, GPIO2_PSR, GTCR, GTCR_L, GTCR_U, IMB, IOMUXC_NAND_DATA02, SRAMA_BaseAddr, SRAMA_Size, SRAMB_BaseAddr, SRAMB_Size, SRR1init, stackSize, UART1_UCR1, UART1_UCR2, UART1_UCR3, UART1_UCR4, UART1_UFCR, UART1_URXD, UART1_USR1, UART1_USR2, UART1_UTXD

Constructor Summary

Constructors
Constructor Description

Kernel()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`blink(int nTimes)`	Blinks LED on MPIOSM pin 15, nTimes with approx.
`static void`	`checkStack()`	Blinks LED on MPIOSM pin 15 if stack end was overwritten
`static void`	`enableInterrupts()`	Enables interrupts globally.
`static long`	`timeNs()`	Reads the system time.
`static long`	`timeUs()`	Reads the system time.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, toString

- Field Detail
  - stackEndPattern
```
static final int stackEndPattern
```
    See Also:
    
    Constant Field Values
  - clockFrequency
```
public static final int clockFrequency
```
    Clock frequency of the processor.
    
    See Also:
    
    Constant Field Values
  - loopAddr
```
static int loopAddr
```
  - cmdAddr
```
static int cmdAddr
```
- Constructor Detail
  - Kernel
```
public Kernel()
```
- Method Detail
  - timeUs
```
public static long timeUs()
```
    Reads the system time.
    
    Returns:
    
    System time in µs
  - timeNs
```
public static long timeNs()
```
    Reads the system time.
    
    Returns:
    
    System time in ns
  - blink
```
public static void blink(int nTimes)
```
    Blinks LED on MPIOSM pin 15, nTimes with approx. 100us high time and 100us low time, blocks for 1s
    
    Parameters:
    
    nTimes - Number of times the led blinks.
  - enableInterrupts
```
public static void enableInterrupts()
```
    Enables interrupts globally. Individual interrupts for peripheral components must be enabled locally.
  - checkStack
```
public static void checkStack()
```
    Blinks LED on MPIOSM pin 15 if stack end was overwritten