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 * DISCLAIMER
 * This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products. No
 * other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all
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 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
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 *********************************************************************************************************************/
/***********************************************************************/
/*                                                                     */
/*  FILE        :Main.c or Main.cpp                                    */
/*  DATE        :Tue, Oct 31, 2006                                     */
/*  DESCRIPTION :Main Program                                          */
/*  CPU TYPE    :                                                      */
/*                                                                     */
/*  NOTE:THIS IS A TYPICAL EXAMPLE.                                    */
/*                                                                     */
/***********************************************************************/
//#include "typedefine.h"

#include "r_smc_entry.h"

volatile int g_dmac4_flag;		//0:DMAC未使用, 1:DMAC使用中
volatile int g_sci1_txi_flag;	//0:TX送信中or送信準備ができていない, 1:送信準備完了（TXI割り込み要求を掛けて問題ない）

int sci_dmac_out(uint8_t * tx_buf, uint16_t tx_num);	//SCI送信関数


#ifdef __cplusplus
//#include <ios>                        // Remove the comment when you use ios
//_SINT ios_base::Init::init_cnt;       // Remove the comment when you use ios
#endif

void main(void);
#ifdef __cplusplus
extern "C" {
void abort(void);
}
#endif

void main(void)
{
	volatile unsigned long x;
	unsigned char *msg[6];
	
	R_Config_SCI1_Start();
	g_sci1_txi_flag = 1;					//TXI要求準備OK
	R_Config_DMAC4_Start();
	DMAC4.DMCNT.BIT.DTE = 0U;
	g_dmac4_flag = 0;
	
	/* Set TXD1 pin */
    PORT2.PMR.BYTE |= 0x40U;
	
	msg[0]= "SCI DMAC test 1\r\n";
	msg[1]= "SCI DMAC test 2\r\n";
	msg[2]= "SCI DMAC test 3\r\n";
	msg[3]= "SCI DMAC test 4\r\n";
	msg[4]= "SCI DMAC test 5\r\n";
	msg[5]= "SCI DMAC test 6\r\n";

	while(sci_dmac_out(msg[0], 17) != 0);		//1回目
	

	while(sci_dmac_out(msg[1], 17) != 0);		//2回目（送信完了前にDMACの転送が間に合うタイミング）


	while(sci_dmac_out(msg[2], 17) != 0);		//3回目（送信完了前にDMACの転送が間に合うタイミング）
	
	for (x=0; x<10000000; x++) __nop();			//長時間ウェイト
	
	while(sci_dmac_out(msg[3], 17) != 0);		//4回目（送信完了前にDMACの転送が間に合わないタイミング）
	
	for (x=0; x<10000000; x++) __nop();			//長時間ウェイト
	
	while(sci_dmac_out(msg[4], 17) != 0);		//5回目
	
	while(sci_dmac_out(msg[5], 17) != 0);		//6回目
	
	
	while(1)
	{
		__nop();
	}

}

#ifdef __cplusplus
void abort(void)
{

}
#endif

int sci_dmac_out(uint8_t * tx_buf, uint16_t tx_num)
{
	//SCI送信関数

	//戻り値
	//0: 正常終了
	//1: DMAC使用中
	
	if (g_dmac4_flag == 1) return 1;
	
	//転送アドレスと転送回数セット
	DMAC4.DMCRA = tx_num;
	DMAC4.DMSAR = (void *)tx_buf;

	//DMAC起動
	g_dmac4_flag = 1;
	DMAC4.DMCNT.BIT.DTE = 1;
	
	if (g_sci1_txi_flag == 1)
	{
		//送信の準備ができている場合はTXI割り込み要求（DMAC起動トリガ）を掛ける
		SCI1.SCR.BYTE |= 0xA0U;
		g_sci1_txi_flag = 0;
	}
	
	return 0;
}