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Kontron KEAPI Manual de usuario Pagina 11

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Software specification for Kontron EAPI
11
Parameters:
in/out
Parameter name
Description
in
boardHandle
Handle of the selected board
in
freqType
Type of frequency (minimal (CPU_FREQUENCY_MIN, 0),
maximal (CPU_FREQUENCY_MAX, 1), current
(CPU_FREQUENCY_CURRENT, 2))
out
frequency
Frequency of the CPU, in kHz
2.4.2 KEApiGetCpuInfo
KEAPI_CALLTYPE KEAPI_UINT32 KEApiGetCpuInfo (
KEAPI_UINT32 boardHandle,
PCPU_INFO pCpuInfo
);
Description:
Provides information about processors.
Parameters:
in/out
Parameter name
Description
in
boardHandle
Handle of the selected board
out
pCpuInfo
Returned CPU_INFO structure
Structure used:
typedef struct Cpu_Info
{
KEAPI_CHAR cpuName[MAX_STR]; // CPU name
KEAPI_INT32 cpuCount; // Number of CPUs
KEAPI_INT32 cpuCoreCount; // Number of cores of each CPU
KEAPI_INT32 cpuThreadCount; // Number of CPU threads
KEAPI_FLOAT cpuMaxCoreSpeed; // Designed core speed in MHz
KEAPI_INT32 fsbSpeed; // FSB speed in MHz
KEAPI_INT32 l1Cache; // L1 cache size in kB
KEAPI_INT32 l2Cache; // L2 cache size in kB
KEAPI_INT32 l3Cache; // L3 cache size in kB
} CPU_INFO, *PCPU_INFO;
2.4.3 KEApiGetCpuPerformance
KEAPI_CALLTYPE KEAPI_UINT32 KEApiGetCpuPerformance (
KEAPI_UINT32 boardHandle,
KEAPI_PINT8 pPerformanceType,
KEAPI_PINT8 pPerformancePercentage
);
Description:
Linux: Provides information about the current CPU performance mode
high performance: CPU_PERFORMANCE_HIGH, 0
power save mode: CPU_PERFORMANCE_POWER_SAVE, 1
on demand mode: CPU_PERFORMANCE_ON_DEMAND, 2
conservative mode: CPU_PERFORMANCE_CONSERVATIVE, 3.
Windows: Provides information about the current CPU performance in percentage
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