Renesas Single-Chip Microcomputer M38C89T-ADF Bedienungsanleitung PDF herunterladen (Seite 126)

5-10

Rev.1.00 May 22 2012

REJ09B0566

4BUsage Examples

5.5 25BMulti-Function Timer Pulse Unit

5.5. Multi-Function Timer Pulse Unit

Figure 5-5 shows an example of MTU2

usage.

/* Peripheral driver function prototypes */

#include “r_pdl_mtu.h”

#include “r_pdl_cgc.h”

#include “r_pdl_pfc.h”

#include “r_pdl_intc.h”

/* PDL device-specific definitions */

#include “r_pdl_definitions.h”

void main(void)

{

/* Initialise the system clocks */

R_CPG_Set(18E6, 144E6, 36E6, PDL_CPG_CK_2, PDL_CPG_OUT_CK_01);

/* Set the CPU’s Interrupt Priority Level to 0 */

R_INTC_Write(

PDL_INTC_REG_IPL,

);

/* Select the –B pins for TLCKA, TCLKB, TCLKC and TCLKD by setting bit TCLKS in register PFCR5 to 1 */

R_PFC_Modify(

PDL_PFC_OR,

0x08

);

/* Configure channel 0 for dual-waveform (A and B) output */

R_MTU_Create(

PDL_MTU_CLK_PCLK_DIV_1 | PDL_MTU_CLEAR_CM_B,

PDL_MTU_A_OC_LOW_CM_INV | PDL_MTU_B_OC_HIGH_CM_INV,

200 - 1,

400 - 1,

PDL_NO_FUNC,

);

/* Read the status flags and resisters A and D for channel 0 */

R_MTU_Read(

&Flags,

PDL_NA,

&General_A,

PDL_NA,

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Renesas Single-Chip Microcomputer M38C89T-ADF Bedienungsanleitung Seite 126