void benchmark_timer_initialize(void)
{
uint32_t preScaleDivisor = bsp_get_CPU_clock_speed() / 1000000;
MCF_DTIM3_DTMR = 0;
MCF_DTIM3_DTMR = MCF_DTIM_DTMR_PS(preScaleDivisor - 1) |
MCF_DTIM_DTMR_CLK_DIV1 | MCF_DTIM_DTMR_RST;
}
/* DMA Timer Initialization */
int8 dtim_init(/*DTIM_Info info, */uint8 u8DTimModule)
{
/*MCF_SCM_PPMRL &= ~MCF_SCM_PPMRL_CDDTIM0;
MCF_SCM_PPMRC |= MCF_SCM_PPMRC_ENABLE_DTIM0;*/
gpio_set_func(PTTC, u8DTimModule, PRIMARY);
MCF_DTIM_DTMR(u8DTimModule)|= 0 | MCF_DTIM_DTMR_PS(0) | MCF_DTIM_DTMR_CE_NONE | MCF_DTIM_DTMR_CLK_DTIN | MCF_DTIM_DTMR_FRR;
MCF_DTIM_DTRR(u8DTimModule)=~0;
MCF_DTIM_DTCN(u8DTimModule)=0;
/*MCF_GPIO_PTCPAR|=MCF_GPIO_PTCPAR_DTIN0_DTIN0|MCF_GPIO_PTCPAR_DTIN1_DTIN1;
//timer mode reg
// MCF_DTIM_DTMR(u8DTimModule) = MCF_DTIM_DTMR_CE(info.u8CapEdge | MCF_DTIM_DTMR_CLK(info.u8ClkSrc);
MCF_DTIM_DTMR(u8DTimModule) |= MCF_DTIM_DTMR_CE_NONE | MCF_DTIM_DTMR_CLK_DTIN | MCF_DTIM_DTMR_FRR;
MCF_DTIM_DTRR(u8DTimModule) = 0xFFFFFFFF;
MCF_DTIM_DTCN(u8DTimModule) = 0x0;*/
/*if(info.u8OutputMode) //toggle output
MCF_DTIM_DTMR(u8DTimModule) |= MCF_DTIM_DTMR_OM;
else*/
// MCF_DTIM_DTMR(u8DTimModule) &= ~MCF_DTIM_DTMR_OM;
// if(info.u8Restart) //restart
// MCF_DTIM_DTMR(u8DTimModule) |= MCF_DTIM_DTMR_FRR;
// else
// MCF_DTIM_DTMR(u8DTimModule) &= ~MCF_DTIM_DTMR_FRR;
//Timer extended register
// if(info.u8DMAEn) //DMA request enable
// MCF_DTIM_DTXMR(u8DTimModule) |= MCF_DTIM_DTXMR_DMAEN;
// else
// MCF_DTIM_DTXMR(u8DTimModule) &= ~MCF_DTIM_DTXMR_DMAEN;
// if(info.u8Halt) //timer stop in halt
// MCF_DTIM_DTXMR(u8DTimModule) |= MCF_DTIM_DTXMR_HALTED;
// else
// MCF_DTIM_DTXMR(u8DTimModule) &= ~MCF_DTIM_DTXMR_HALTED;
/*if(info.u8Mode16)
MCF_DTIM_DTXMR(u8DTimModule) |= MCF_DTIM_DTXMR_MODE16;
else*/
// MCF_DTIM_DTXMR(u8DTimModule) &= ~MCF_DTIM_DTXMR_MODE16;
// DTimEnableInts(u8DTimModule, dtim0_isr);
return 0;
}
/*
* Pause for the specified number of micro-seconds.
* Uses DTIM3 as a timer
*/
void
cpu_pause(int usecs)
{
/* Enable the DMA Timer 3 */
MCF_DTIM3_DTRR = (vuint32)(usecs - 1);
MCF_DTIM3_DTER = MCF_DTIM_DTER_REF;
MCF_DTIM3_DTMR = 0
| MCF_DTIM_DTMR_PS(SYSTEM_CLOCK)
| MCF_DTIM_DTMR_FRR
| MCF_DTIM_DTMR_CLK_DIV1
| MCF_DTIM_DTMR_RST;
while ((MCF_DTIM3_DTER & MCF_DTIM_DTER_REF) == 0)
{};
/* Disable the timer */
MCF_DTIM3_DTMR = 0;
}
