1. 我之前以为是
电源不够，所以外加的12V 1A的电源，一直不行。所以上个帖子求助
william hill官网
，在此特别感谢 william hill官网
ID：
左岸cpx 这个大神，帮助我。
2. 我自己之前尝试过很多次，软件版本从V1升级到 V8，想必各位理解我的付出的努力和尝试，各种看资料。
3. vivado 的版本一直 到 5，可谓各种办法都试过。
4. 感谢william hill官网
ID：
左岸cpx，感谢这些前辈的分享经验
5. digilent 在官网说过 MTDS库在 arty板子上测试过，但是没有提供
Multi-Touch Display Shield这个屏幕的例程。
6. 按照新下载的MTDS例程
https://forum.digilentinc.com/to ... oard/#comment-14912
7. 下载 zip文件
8. 这个时候，下载的工程打开后不能直接使用，需要重新添加 Ip核，参考上个帖子。
9. 按照上个帖子的流程，启动 xilinx SDK , 下载 FPGA， run 起来，终于在屏幕上看到了动静。
10. 当然这个时候需要去探究SDK里面的C++怎么实现的了。
11. 我检查vivado 的引脚配置的时候，发现 CS引脚是 C1，但是在 屏幕的原理图发现CS引脚不对应的，
猜测，原理图可能有问题。
12. 在 main.c++里面
int main ()
{
EnableCaches();
setup();
while(1)
{
loop();
}
return 0;
}
其实主要是 setup这个函数，打开他
fStat = mtds.begin(pinMtdsSelStd, frqMtdsSpiDefault); 这个函数有2个参数，pinMtdsSelStd是 配置CS片选引脚，frqMtdsSpiDefault是 SPI的时钟频率
发现主要是 mtds 这个对象，打开它的类，所有函数都在里面了。如果需要实现什么功能，直接调用MTDS里面的函数即可，同时官方提供了7个 demo, 都可以试一试。
class MTDS {
friend class MTFS;
friend class MTWS;
private:
bool fIni
tialized;
uint8_t clsLastError;
uint8_t cmdLastError;
uint8_t staLastError;
uint32_t tusElapsed;
bool fUpdating;
protected:
bool MtdsSyncChannel();
void MtdsProcessCmdWr(uint8_t cls, uint8_t cmd, uint16_t cbParam, uint8_t * pbParam,
uint16_t cbData, uint8_t * pbData);
void MtdsProcessCmdRd(uint8_t cls, uint8_t cmd, uint16_t cbParam, uint8_t * pbParam,
uint16_t cbData, uint8_t * pbData);
bool FCheckName(char * sz, uint8_t cls, uint8_t cmd);
bool FBeginUpdate();
public:
MTDS();
~MTDS();
bool begin();
bool begin(int pinSel, uint32_t frqSpi);
void end();
/* General control and status functions.
*/
bool FInitialized() { return fInitialized; };
bool FInitDisplay();
bool GetVersionInfo(VINFO * pvinfo);
uint8_t GetLastError() { return staLastError; };
uint8_t GetLastError(uint8_t * pcls, uint8_t * pcmd);
uint32_t GetElapsedTime() { return tusElapsed; };
bool EnableStatusPin(int idPin, int fEn);
bool GetStatusPin(int idPin);
bool SetStatusPin(int idPin, int st);
bool SetDisplayEnable(uint32_t st);
uint32_t GetDisplayEnable();
bool SetDisplayOrientation(uint32_t dso);
uint32_t GetDisplayOrientation();
bool SetDisplayBacklight(uint32_t val);
uint32_t GetDisplayBacklight();
uint32_t SetBacklightMode(uint32_t val);
bool ClearDisplay(uint16_t clr);
bool SetTchSensitivity(uint32_t val);
uint32_t GetTchSensitivity();
bool SetTchMoveDelta(int16_t dxco, int16_t dyco);
bool GetTchMoveDelta(int16_t * pdxco, int16_t * pdyco);
uint32_t GetMsgStatus();
bool ClearMsgQueue();
bool PeekMsg(MEVT * pevt);
bool GetMsg(MEVT * pevt);
bool PostMsg(MEVT * pevt);
bool PushMsg(MEVT * pevt);
uint32_t GetFreeMem();
bool GetMemStatus(MSTAT * pmstat);
bool SetMemMode(uint32_t mm);
HMEM AllocMem(uint32_t cbReq);
uint32_t GetMemSize(HMEM hmem);
bool FreeMem(HMEM hmem);
bool ReadMem(HMEM hmem, uint32_t ibRead, uint32_t cbRead, uint8_t * rgbBuf, uint32_t *
PCBRes);
bool WriteMem(HMEM hmem, uint32_t ibWrite, uint32_t cbWrite, uint8_t * rgbBuf, uint32_t * pcbRes);
bool FirmwareUpdate(char * szName);
uint8_t GetUpdateStatus();
bool SetDateTime(DTM * pdtm);
bool GetDateTime(DTM * pdtm);
/* GDI graphics functions
*/
HDS GetDisplayDs();
HDS GetDs();
bool ReleaseDs(HDS hds);
HBMP CreateBitmap(int16_t dxco, int16_t dyco, int16_t cbpp);
bool DestroyBitmap(HBMP hbmp);
bool GetBitmapDimensions(HBMP hbmp, BMPD * pbmpd);
HBMP GetDisplayBitmap();
HBR CreateSolidBrush(uint32_t clr);
HBR CreatePatternBrush(int16_t ids, uint32_t clrFg, uint32_t clrBg);
HBR CreateCustomBrush(HBMP hbmp);
bool DestroyBrush(HBR hbrDel);
uint32_t GetNearestColor(uint32_t clr);
bool SetFgColor(HDS hds, uint32_t clr);
uint32_t GetFgColor(HDS hds);
bool SetBgColor(HDS hds, uint32_t clr);
uint32_t GetBgColor(HDS hds);
bool SetTransColor(HDS hds, uint32_t clr);
uint32_t GetTransColor(HDS hds);
bool SetIntensity(HDS hds, int ity);
int GetIntensity(HDS hds);
bool SetPen(HDS hds, uint16_t pen);
uint16_t GetPen(HDS hds);
bool SetBkMode(HDS hds, int bkReq);
int GetBkMode(HDS hds);
bool SetDrwRop(HDS hds, int drwReq);
int GetDrwRop(HDS hds);
bool SetBrush(HDS hds, HBR hbrReq);
HBR GetBrush(HDS hds);
bool SetFont(HDS hds, HFNT hfntReq);
HFNT GetFont(HDS hds);
bool SetDrawingSurface(HDS hds, HBMP hbmp);
HBMP GetDrawingSurface(HDS hds);
bool StoreBitmap(char * szName, HBMP hbmp);
HBMP LoadBitmap(char * szName);
bool SndBitmap(char * szName, uint8_t * pbmp);
bool RcvBitmap(char * szName, int cbMax, uint8_t * pbmp);
bool StoreFont(char * szName, HFNT hfnt);
HFNT LoadFont(char * szName);
bool SetPixel(HDS hds, int16_t xco, int16_t yco, uint32_t clr);
uint32_t GetPixel(HDS hds, int16_t xco, int16_t yco);
bool GetCurPos(HDS hds, PNT * ppnt);
bool MoveTo(HDS hds, int16_t xco, int16_t yco);
bool MoveTo(HDS hds, PNT * ppnt) { return MoveTo(hds, ppnt->xco, ppnt->yco); };
bool Line(HDS hds, int16_t xco, int16_t yco);
bool Line(HDS hds, PNT * ppnt) { return Line(hds, ppnt->xco, ppnt->yco); };
bool LineTo(HDS hds, int16_t xco, int16_t yco);
bool LineTo(HDS hds, PNT * ppnt) { return LineTo(hds, ppnt->xco, ppnt->yco); };
bool PolyLine(HDS hds, int cpnt, PNT * rgpnt);
bool PolyLineTo(HDS hds, int cpnt, PNT * rgpnt);
bool Arc(HDS hds, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom,
int16_t xcoRad1, int16_t ycoRad1, int16_t xcoRad2, int16_t ycoRad2);
bool ArcTo(HDS hds, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom,
int16_t xcoRad1, int16_t ycoRad1, int16_t xcoRad2, int16_t ycoRad2);
bool Ellipse(HDS hds, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom);
bool Chord(HDS hds, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom,
int16_t xcoRad1, int16_t ycoRad1, int16_t xcoRad2, int16_t ycoRad2);
bool Pie(HDS hds, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom,
int16_t xcoRad1, int16_t ycoRad1, int16_t xcoRad2, int16_t ycoRad2);
bool Rectangle(HDS hds, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom);
bool RoundRect(HDS hds, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom,
int16_t dxcoWidth, int16_t dycoHeight);
bool TextOut(HDS hds, char * szText);
bool TextOut(HDS hds, int cchText, char * rgchText);
bool TextOut(HDS hds, int16_t xco, int16_t yco, int cchText, char * rgchText);
bool GetTextExtent(HDS hds, int cchText, char * rgchText, PNT * pntExtent);
bool BitBlt(HDS hdsDst, int16_t xcoDst, int16_t ycoDst, int16_t dxco, int16_t dyco, HDS hdsSrc, int16_t xcoSrc, int16_t ycoSrc, uint16_t rop);
bool PatBlt(HDS hdsDst, int16_t xco, int16_t yco, int16_t dxco, int16_t dyco, uint16_t rop);
bool DrawBitmap(HDS hdsDst, int16_t xcoDst, int16_t ycoDst, int16_t dxco, int16_t dyco, HDS hdsSrc, int16_t xcoSrc, int16_t ycoSrc);
bool IsRectEmpty(RCT * prct);
bool IsRectEqual(RCT * prct1, RCT * prct2);
bool PointInRect(RCT * prct, int16_t xco, int16_t yco);
bool PointInRect(RCT * prct, PNT pnt) { return PointInRect(prct, pnt.xco, pnt.yco); };
void SetRectEmpty(RCT * prct);
void SetRect(RCT * prct, int16_t xcoLeft, int16_t ycoTop, int16_t xcoRight, int16_t ycoBottom);
void SetRect(RCT * prctDst, RCT * prctSrc);
void MoveRect(RCT * prct, int16_t dxco, int16_t dyco);
void GrowRect(RCT * prct, int16_t dxco, int16_t dyco);
bool IntersectRect(RCT * prctDst, RCT * prctOne, RCT * prctTwo);
bool UnionRect(RCT * prctDst, RCT * prctOne, RCT * prctTwo);
bool FrameRect(HDS hds, RCT * prct);
bool FillRect(HDS hds, RCT * prct, HBR hbr);
bool InvertRect(HDS hds, RCT * prct);
};
13. 这次学到很多，主要是软核处理器，和 外设接口的使用，在最上层全部是 C++实现。
举报
