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Example 2: Noncontinuous Frame Display for 525/60 Format
A-19Video Port Configuration ExamplesSPRU629
/* enable three EDMA channels */
EDMA_enableChannel(hEdmaVPDispY);
EDMA_enableChannel(hEdmaVPDispCb);
EDMA_enableChannel(hEdmaVPDispCr);
}
/*ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ */
/* Function : configVPDispEDMAChannel */
/* */
/* Input(s) : edmaHandle β pointer to EDMA handle. */
/* eventId β EDMA eventId. */
/* tccNum β pointer to transfer complete number. */
/* srcAddr β source address for EDMA transfer. */
/* dstAddr β destination address for EDMA transfer */
/* frameCount β frame count. */
/* elementCount β element count(32βbit element size). */
/* */
/* Output(s): edmaHandle β edma Handle of the given event. */
/* tccNum β transfer complete code for the given */
/* event. */
/* */
/* Description : Configures the given VP display EDMA channel. */
/* The destination address update is fixed because */
/* the displayed data is write to the FIFO. */
/* In this example, the source address mode is */
/* autoβincrement. But, in realβtime applications */
/* there is lot of flexibility in the way display */
/* buffers can be managed like pingβpong and round */
/* robin,β¦etc. */
/*ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ */
void configVPDispEDMAChannel(EDMA_Handle *edmaHandle,
Int32 eventId, Int32 *tccNum,
Uint32 srcAddr, Uint32 dstAddr,
Uint32 frameCount, Uint32 elementCount)
{
Int32 tcc = 0;
/* Open Y event EDMA channel */
*edmaHandle = EDMA_open(eventId, EDMA_OPEN_RESET);
if(*edmaHandle == EDMA_HINV)
test_exit(FAIL);
/* allocate TCC for Y event */
if((tcc = EDMA_intAlloc(β1)) == β1)
test_exit(FAIL);
- TMS320C64x DSP 1
- Reference Guide 1
- Read This First 3
- Trademarks 4
- Contents 10
- Overview 18
- 1.1 Video Port 19
- Video Port 20
- 1-3OverviewSPRU629 20
- 1.2 Video Port FIFO 22
- 1.3 Video Port Registers 29
- 1.4 Video Port Pin Mapping 30
- 2.1 Reset Operation 35
- 2.1.3 Software Port Reset 36
- 2.1.4 Capture Channel Reset 36
- 2.1.5 Display Channel Reset 37
- 2.2 Interrupt Operation 38
- 2.3 DMA Operation 39
- DMA Operation 41
- Video Port2-8 SPRU629 41
- 2-9Video PortSPRU629 42
- Video Port2-10 SPRU629 43
- 2.3.4 DMA Interface Operation 44
- 2.4 Clocks 45
- 2.5.2 FIFO Size 46
- Table 2β8 54
- Video Capture Port 63
- 3.2 BT.656 Video Capture Mode 65
- 3.2.4 BT.656 Data Sampling 70
- 3.2.5 BT.656 FIFO Packing 71
- BT.656 Video Capture Mode 72
- 3-11Video Capture PortSPRU629 73
- 3.3 Y/C Video Capture Mode 74
- Y/C Video Capture Mode 75
- 3-13Video Capture PortSPRU629 75
- 3.3.4 Y/C FIFO Packing 76
- 3-15Video Capture PortSPRU629 77
- 3-17Video Capture PortSPRU629 79
- 3-21Video Capture PortSPRU629 83
- 3-23Video Capture PortSPRU629 85
- 3.4.4 Field Identification 86
- 3-25Video Capture PortSPRU629 87
- 3.5 Video Input Filtering 88
- 3.5.3 Scaling Operation 89
- 3.5.4 Edge Pixel Replication 91
- 3.6 Ancillary Data Capture 93
- 3.7 Raw Data Capture Mode 94
- 3.7.2 Raw Data FIFO Packing 95
- Raw Data Capture Mode 96
- 3-35Video Capture PortSPRU629 97
- Figure 3β21 98
- 3.8 TSI Capture Mode 99
- 3.8.6 Writing to the FIFO 103
- Figure 3β25. TSI FIFO Packing 103
- 3.8.7 Reading from the FIFO 104
- YDEF YDEFYDEF YDEF 105
- CbDEF CbDEFCrDEF CrDEF 105
- 3.13 Video Capture Registers 111
- Field Descriptions 113
- Video Capture Registers 127
- 3-65Video Capture PortSPRU629 127
- Video Display Port 146
- 4.1.1 Image Timing 147
- 4.1.2 Video Display Counters 150
- 4.1.3 Sync Signal Generation 152
- 4.1.4 External Sync Operation 153
- 4.1.5 Port Sync Operation 153
- 4.2 BT.656 Video Display Mode 154
- 4.2.2 Blanking Codes 157
- 4.2.3 BT.656 Image Display 157
- 4.2.4 BT.656 FIFO Unpacking 158
- BT.656 Video Display Mode 159
- 4-15Video Display PortSPRU629 160
- 4.3 Y/C Video Display Mode 161
- 4.3.2 Y/C Blanking Codes 162
- 4.3.3 Y/C Image Display 162
- 4.3.4 Y/C FIFO Unpacking 162
- Y/C Video Display Mode 163
- 4-19Video Display PortSPRU629 164
- 4.4 Video Output Filtering 166
- 4.4.3 Scaling Operation 167
- 4.4.4 Edge Pixel Replication 168
- Video Output Filtering 169
- 4.5 Ancillary Data Display 170
- 4.6 Raw Data Display Mode 170
- 4.6.2 Raw Data FIFO Unpacking 171
- Raw Data Display Mode 172
- 4-27Video Display PortSPRU629 172
- 4-29Video Display PortSPRU629 174
- 4-33Video Display PortSPRU629 178
- 4.9 Display Timing Examples 180
- Display Timing Examples 181
- 4-36 Video Display Port 181
- 4-37Video Display PortSPRU629 182
- VDTHRLD with a value of 3 184
- 4-40 Video Display Port 185
- 4-41Video Display PortSPRU629 186
- 4-43Video Display PortSPRU629 188
- 4-44 Video Display Port 189
- 4-45Video Display PortSPRU629 190
- 4-47Video Display PortSPRU629 192
- 4-49Video Display PortSPRU629 194
- 4-51Video Display PortSPRU629 196
- 4.12 Video Display Registers 197
- General Purpose I/O Operation 242
- 5.1 GPIO Registers 243
- Chapter 6 268
- 6.1 Overview 269
- 6.2 Interface 270
- 6.3 Operational Details 270
- 6.4 Enabling VIC Port 272
- 6.5 VIC Port Registers 272
- Table 6β4 273
- Appendix A 277
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