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58 lines
1.5 KiB
58 lines
1.5 KiB
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#include <chip.h> |
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#include <delay.h> |
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/*=======================================================================*/ |
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/* Configuration */ |
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#define SYS_TICK_PERIOD_IN_MS 100 |
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/*=======================================================================*/ |
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/* system procedures and sys tick master task */ |
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volatile uint32_t sys_tick_irq_cnt=0; |
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void __attribute__ ((interrupt)) SysTick_Handler(void) |
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{ |
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sys_tick_irq_cnt++; |
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} |
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/*=======================================================================*/ |
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/* |
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setup the hardware and start interrupts. |
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called by "Reset_Handler" |
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*/ |
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int __attribute__ ((noinline)) main(void) |
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{ |
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/* call to the lpc lib setup procedure. This will set the IRC as clk src and main clk to 24 MHz */ |
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Chip_SystemInit(); |
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/* if the clock or PLL has been changed, also update the global variable SystemCoreClock */ |
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SystemCoreClockUpdate(); |
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/* set systick and start systick interrupt */ |
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SysTick_Config(SystemCoreClock/1000UL*(unsigned long)SYS_TICK_PERIOD_IN_MS); |
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/* enable clock for several subsystems */ |
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Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_IOCON | SYSCTL_CLOCK_GPIO | SYSCTL_CLOCK_SWM); |
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/* turn on GPIO */ |
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Chip_GPIO_Init(LPC_GPIO_PORT); /* Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO); */ |
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//Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 15, IOCON_FUNC1); /* RxD */ |
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Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 0, 15); |
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for(;;) |
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{ |
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Chip_GPIO_SetPinOutHigh(LPC_GPIO_PORT, 0, 15); |
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delay_micro_seconds(1000000); |
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Chip_GPIO_SetPinOutLow(LPC_GPIO_PORT, 0, 15); |
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delay_micro_seconds(1000000); |
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} |
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} |