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搜索"C5402def.h"看看~~~簡(jiǎn)單明了~~~
雖然C5402cfg.h/c5402cfg.c"更強(qiáng)大，俺暫不想發(fā)布~~~
void McBSPObj::McBSP0Init(void)//McBSP從設(shè)備SPI硬件配置
{
/*-------------------------------------------------------------
DSP5402之McBSP從設(shè)備SPI硬件四種模式配置實(shí)例(經(jīng)過(guò)硬件測(cè)試)
--------------------------------------------------------------*/
//PCR設(shè)置過(guò)程(FSM=0,CLKM=0)
McBSP0->SPSA = PCR;
McBSP1->SPSD = (0 << PCR_XIOEN) //發(fā)送非通用I/O模式位
| (0 << PCR_RIOEN) //接收非通用I/O模式位
| (0 << PCR_FSXM) //外部發(fā)送幀同步脈沖(外部片選)
| (0 << PCR_FSRM) //外部接收幀同步脈沖(外部片選)
| (0 << PCR_CLKXM) //外部發(fā)送時(shí)鐘(外部時(shí)鐘源)
| (0 << PCR_CLKRM) //外部接收時(shí)鐘(外部時(shí)鐘源)
#if SPIMODE == 0
//SPI設(shè)置過(guò)程00(0--FS高電平有效,0--CLK上升沿收發(fā)數(shù)據(jù))
| (0 << PCR_FSXP) //發(fā)送幀同步脈沖極性(高電平有效)
| (0 << PCR_FSRP) //接收幀同步脈沖極性(高電平有效)
| (0 << PCR_CLKXP) //發(fā)送時(shí)鐘極性(上升沿發(fā)送數(shù)據(jù))
| (0 << PCR_CLKRP);//接收時(shí)鐘極性(上升沿接收數(shù)據(jù))
#endif
#if SPIMODE == 1
//SPI設(shè)置過(guò)程01(0--FS高電平有效,1--CLK下降沿收發(fā)數(shù)據(jù))
| (0 << PCR_FSXP) //發(fā)送幀同步脈沖極性(高電平有效)
| (0 << PCR_FSRP) //接收幀同步脈沖極性(高電平有效)
| (1 << PCR_CLKXP) //發(fā)送時(shí)鐘極性(下降沿發(fā)送數(shù)據(jù))
| (1 << PCR_CLKRP);//接收時(shí)鐘極性(下降沿接收數(shù)據(jù))
#endif
#if SPIMODE == 2
//SPI設(shè)置過(guò)程10(1--FS低電平有效,0--CLK上升沿收發(fā)數(shù)據(jù))
| (1 << PCR_FSXP) //發(fā)送幀同步脈沖極性(低電平有效)
| (1 << PCR_FSRP) //接收幀同步脈沖極性(低電平有效)
| (0 << PCR_CLKXP) //發(fā)送時(shí)鐘極性(上升沿發(fā)送數(shù)據(jù))
| (0 << PCR_CLKRP);//接收時(shí)鐘極性(上升沿接收數(shù)據(jù))
#endif
#if SPIMODE == 3
//SPI設(shè)置過(guò)程11(1--FS低電平有效,1--CLK下降沿收發(fā)數(shù)據(jù))
| (1 << PCR_FSXP) //發(fā)送幀同步脈沖極性(低電平有效)
| (1 << PCR_FSRP) //接收幀同步脈沖極性(低電平有效)
| (1 << PCR_CLKXP) //發(fā)送時(shí)鐘極性(下降沿發(fā)送數(shù)據(jù))
| (1 << PCR_CLKRP);//接收時(shí)鐘極性(下降沿接收數(shù)據(jù))
#endif
//MCR1設(shè)置過(guò)程(RMCM=0)
McBSP0->SPSA = MCR1;//
McBSP0->SPSD = (0 << MCR1_RMCM) //允許接收多通道選擇(0)
| (0x00 << MCR1_RPBBLK)
| (0x00 << MCR1_RPABLK)
| (0x00 << MCR1_RCBLK);
//MCR2設(shè)置過(guò)程(XMCM=0)
McBSP0->SPSA = MCR2;//
McBSP0->SPSD = (0x00 << MCR2_XMCM) //允許發(fā)送多通道選擇(00b)
| (0x00 << MCR2_XPBBLK)
| (0x00 << MCR2_XPABLK)
| (0x00 << MCR2_XCBLK);
//RCERA設(shè)置過(guò)程
McBSP0->SPSA = RCERA;//
McBSP0->SPSD = 0;
//RCERB設(shè)置過(guò)程
McBSP0->SPSA = RCERB;//
McBSP0->SPSD = 0;
//XCERA設(shè)置過(guò)程
McBSP0->SPSA = XCERA;//
McBSP0->SPSD = 0;
//XCERB設(shè)置過(guò)程
McBSP0->SPSA = XCERB;//
McBSP0->SPSD = 0;
//XCR1設(shè)置過(guò)程
McBSP0->SPSA = XCR1;//
McBSP0->SPSD = (0x00 << XCR1_XFRLEN1) //每幀1個(gè)字(每幀中斷的次數(shù)1!!!)
// | (0x02 << XCR1_XWDLEN1);//每字16位長(zhǎng)(每次中斷的字節(jié)數(shù)2!!!)
| (0x00 << XCR1_XWDLEN1);//每字8位長(zhǎng)(每次中斷的字節(jié)數(shù)2!!!)
//XCR2設(shè)置過(guò)程
McBSP0->SPSA = XCR2;
McBSP0->SPSD = (0 << XCR2_XPHASE) //單相幀(其他設(shè)置都為0)
| (0x00 << XCR2_XCOMPAND)//發(fā)送數(shù)據(jù)從最高位(MSB)開始
| (0x00 << XCR2_XDATDLY);//同步后延遲0位數(shù)據(jù)
//RCR1設(shè)置過(guò)程
McBSP0->SPSA = RCR1;
McBSP0->SPSD = (0x00 << RCR1_RFRLEN1) //每幀1個(gè)字(每幀中斷的次數(shù)1!!!)
// | (0x02 << RCR1_RWDLEN1);//每字16位長(zhǎng)(每次中斷的字節(jié)數(shù)2!!!)
| (0x00 << RCR1_RWDLEN1);//每字8位長(zhǎng)(每次中斷的字節(jié)數(shù)2!!!)
//RCR2設(shè)置過(guò)程
McBSP0->SPSA = RCR2;
McBSP0->SPSD = (0 << RCR2_RPHASE) //單相幀(其他設(shè)置都為0)
| (0x00 << RCR2_RCOMPAND)//接收數(shù)據(jù)從最高位(MSB)開始
| (0x00 << RCR2_RDATDLY);//同步后延遲0位數(shù)據(jù)
//SRGR1設(shè)置過(guò)程
McBSP0->SPSA = SRGR1;
McBSP0->SPSD = (0x00 << SRGR1_CLKGDV);//1
//SRGR2設(shè)置過(guò)程
McBSP0->SPSA = SRGR2;
McBSP0->SPSD = (0 << SRGR2_FSGM)
| (1 << SRGR2_CLKSM)//由CPU時(shí)鐘產(chǎn)生的采樣率時(shí)鐘1
| (0 << SRGR2_CLKSP)//0
| (1 << SRGR2_GSYNC)//
| (0x0f << SRGR2_FPER);//0x0f
//SPCR1設(shè)置過(guò)程(CLKSTP=1Xb,RINTM=00b)
McBSP0->SPSA = SPCR1;
McBSP0->SPSD = (0x00 << SPCR1_RINTM) //接收中斷模式00(每幀接收1次中?
| (0 << SPCR1_DLB) //禁止回送
| (1 << SPCR1_DXENA) //DX使能
| (0x00 << SPCR1_RJUST) //接收符號(hào)不擴(kuò)展
| (0x02 << SPCR1_CLKSTP);//SPI模式時(shí)鐘開始于上升沿（無(wú)延遲）
//SPCR2設(shè)置過(guò)程(XINTM=02b)
McBSP0->SPSA = SPCR2;
McBSP0->SPSD = (0x02 << SPCR2_XINTM)//發(fā)送中斷模式02
| (1 << SPCR2_XEMPTY) //發(fā)送移位寄存器空
| (1 << SPCR2_XRDY); //發(fā)送準(zhǔn)備好
//SPCR1復(fù)位過(guò)程
McBSP0->SPSA = SPCR1;
McBSP0->SPSD|= (1 << SPCR1_RRST);//接收器復(fù)位
//SPCR2復(fù)位過(guò)程
McBSP0->SPSA = SPCR2;
McBSP0->SPSD|= (1 << SPCR2_XRST)//發(fā)送器復(fù)位
| (1 << SPCR2_GRST)//采樣率發(fā)生器復(fù)位
| (1 << SPCR2_FRST);//幀同步發(fā)生器復(fù)位
//清除允許BXINT0中斷過(guò)程
// SREG->IFR = (1 << IFR_BXINT0);//清除BXINT0中斷標(biāo)志
// SREG->IMR |= (1 << IMR_BXINT0);//允許BXINT0中斷
//清除允許BRINT0中斷過(guò)程
SREG->IFR = (1 << IFR_BRINT0);//清除BRINT0中斷標(biāo)志
SREG->IMR |= (1 << IMR_BRINT0);//允許BRINT0中斷
}
void McBSPObj::McBSP1Init(void)//GPIO配置
{
McBSP1->SPSA = SPCR1;
McBSP1->SPSD = 0;
McBSP1->SPSA = SPCR2;
McBSP1->SPSD = 0;
McBSP1->SPSA = PCR;
//設(shè)置收發(fā)為IO接口,DX輸出,DR,CLKS輸入
McBSP1->SPSD = (1 << PCR_RIOEN) //通用I/O模式位
//硬件RDDOG喂狗信號(hào)(BDX1)管腳輸出模式默認(rèn)I/O設(shè)置
| (1 << PCR_XIOEN) //通用I/O模式位
//硬件RD SIA信號(hào)(BFSR1)管腳輸入模式設(shè)置
| (0 << PCR_FSRM) //FSR為輸入IO
//硬件FM CE信號(hào)(BFSX1)管腳輸出模式設(shè)置
| (1 << PCR_FSXM) //FSR為輸出IO,FLASH的片選信號(hào)
//硬件FM CE信號(hào)(BFSX1)管腳高電平輸出控制
| (1 << PCR_FSXP) //關(guān)閉FLASH的片選信號(hào)(FSX=1)
| (0 << PCR_CLKRM) //CLKR為輸入IO
| (0 << PCR_CLKXM); //CLKX為輸入IO,CLKX信號(hào)
}
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發(fā)表于 2009-4-2 22:01:00
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