{timer_parameter_struct timer_initpara;timer_initpara.prescaler=prescaler;timer_initpara.alignedmode=TIMER_COUNTER_EDGE;timer_initpara.counterdirection=counter_mode;
{timer_parameter_struct timer_initpara;timer_initpara.prescaler=prescaler;timer_initpara.alignedmode=TIMER_COUNTER_EDGE;timer_initpara.counterdirection=counter_mode;
[ 0.000000] arch_timer: cp15 timer(s) running at 62.50MHz (virt). [ 0.000000] clocksource: arch_sys_counter: mask: 0x1ffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns [ 0.000077] sched_clock: 57 bits at 63MHz, resolution 16ns, wraps every 4398046511096ns [ 0.0...
Generic timer系统级的内存映射实现 (1)内存映射的counter模块(必须),控制了system counter; (2)内存映射的timer模块(必须),控制system timer; (3)内存映射的timers(可选) 2.3 System Counter 3. AArch64 generic timer 3.1Physical counter(包含system connter的count值) 3.2多个定时器 4. 参考文档 [1] DDI04...
- "get": get the value of the secret counter via un hypervisor call. > inc > root@ubuntu:~/arm/bare-metal-aarch64/step-08# make run [QEMU] running with kernel8.img (Press Ctrl-A X to exit QEMU.)*** * Hello, World!! * ***Initial value of x1:0x0000000000000000...
8 --enable-ipv6 \ 9 --enable-shared \ 10 ac_cv_file__dev_ptmx="yes" \ 11 ac_cv_file__dev_ptc="no" 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 2、编译: mk2_make.sh 1 #!/bin/bash 2 3 export PATH=/home/pengdonglin/src/qemu/aarch64/gcc-linaro-aarch64-linux-gnu-4.9...
if (SysTick_Config(SystemCoreClock / SYSTEM_TICK_COUNT)){ /* capture error */ while (1){ } } /* configure the systick handler priority */ NVIC_SetPriority(SysTick_IRQn, 0x00U); } voiddelay_us(uint32_t count) { delay = count; ...
*timer_val=(unsignedlong)arch_counter_get_cntpct(); return0; } #endif staticstructclocksourceclocksource_counter={ .name="arch_sys_counter", .rating=400, .read=arch_counter_read, .mask=CLOCKSOURCE_MASK(56), .flags=CLOCK_SOURCE_IS_CONTINUOUS, ...
63 [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns 64 [ 0.000107] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns 65 [ 0.002457] Console: colour dummy device 80x25 ...
[ 0.976092] clocksource: Switched to clocksource arch_sys_counter [ 1.099009] AppArmor: AppArmor Filesystem Enabled [ 1.100738] pnp: PnP ACPI: disabled [ 1.149920] NET: Registered protocol family 2 [ 1.157502] TCP established hash table entries: 8192 (order: 4, 65536...