20.4 System Information (system)
Here, information on the system whole is defined.
Only one "system" can be defined. And the "system" can not be omitted.
Parentheses < >show the user input part.
1 ) System stack size (
stack_size)
- Description
Define the total stack size used in service call processing and interrupt processing.
- Definition format
Numeric value
- Definition range
More than 8, and multiple of 4.
- When omitting
The set value in the default system configuration file (factory setting: 0x800) applied.
2 ) Maximum task priority (
priority)
- Description
Define the maximum task priority.
- Definition format
Numeric value
- Definition range
1 - 255
- When omitting
The set value in the default system configuration file (factory setting: 32) applied.
-
TMAX_TPRI
The cfg600px outputs the macro
TMAX_TPRI which defines this setting to the system information header file "kernel_id.h".
3 ) Kernel interrupt mask level (
system_IPL)
- Description
Define the interrupt mask level when the kernel's critical section is executed (PSW register's IPL value). Interrupts with higher priority levels than that are handled as "non-kernel interrupts".
For details of "non-kernel interrupts" and "kernel interrupts", refer to "
12.1 Interrupt Type".
- Definition format
Numeric value
- When omitting
The set value in the default system configuration file (factory setting: 7) applied.
-
VTKNL_LVL
The cfg600px outputs the macro
VTKNL_LVL which defines this setting to the system information header file "kernel_id.h".
4 ) Maximum message priority (
message_pri)
- Description
Define the maximum message priority used in the mailbox function. Note that if the mailbox function is not used, this definition item has no effect.
- Definition format
Numeric value
- Definition range
1 - 255
- When omitting
The set value in the default system configuration file (factory setting: 255) applied.
-
TMAX_MPRI
The cfg600px outputs the macro
TMAX_MPRI which defines this setting to the system information header file "kernel_id.h".
5 ) Denominator of base clock interval time (
tic_deno)
- Description
The base clock interval time is calculated by the following expression. Either
tic_deno or
tic_nume should be 1.
The base clock interval time (in millisecond) =
tic_nume /
tic_deno
- Definition format
Numeric value
- Definition range
1 - 100
- When omitting
The set value in the default system configuration file (factory setting: 1) applied.
-
TIC_DENO
The cfg600px outputs the macro
TIC_DENO which defines this setting to the system information header file "kernel_id.h".
6 ) Numerator of base clock interval time (
tic_nume)
- Definition format
Numeric value
- Definition range
1 - 65535
- When omitting
The set value in the default system configuration file (factory setting: 1) applied.
-
TIC_NUME
The cfg600px outputs the macro
TIC_NUME which defines this setting to the system information header file "kernel_id.h".
7 ) Task context register (
context)
- Description
Define the register set used by tasks. The settings made here apply to all tasks.
- Definition format
Symbol
- Definition range
Select one from item of "Setting" in
Table 20-2.
Table 20-2 system.context
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PSW, PC, R0 - R7, R14, R15
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1
When compiler option "-isa=rxv2" is specified, the "Accumulator" means ACC0 register and ACC1 register. In the case of others, the "Accumulator" means ACC0 register (in RXv2 architecture) or ACC register (in RXV1 architecture).
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Note Compiler option "-isa" is supported by the compiler CC-RX V2.01 or later.
- When omitting
The set value in the default system configuration file (factory setting: NO) applied.