參數(shù)資料
型號: THS14F03EVM
廠商: Texas Instruments, Inc.
英文描述: THS14F03EVM(THS14F03評估板)
中文描述: THS14F03EVM(THS14F03評估板)
文件頁數(shù): 30/39頁
文件大?。?/td> 523K
代理商: THS14F03EVM
Read Block Function
3-13
Circuit Description
/********************************************************************/
/* Demo program for the THS14xx EVM connected to an C6201 EVM. */
/* An XDS510 has been used as the emulation interface.
/* The following jumper setting should be used: */
/* C6201 EVM (SW1–12): ON–ON–OFF–ON–OFF–ON–OFF–ON–ON–ON–ON–ON */
/* THS14xx EVM: */
/* H1 open / H2 open / H3 1–2 / H4 open */
/* H5 2–3 / H6 2–3 / H7 2–3 / H8 1–2 */
/* H9 2–3 / H10 open / H11 open / H12 open */
/* H13 open / H14 closed/ H15 2–3 */
/* Supply voltage from DSP, Input ADCIN J10 */
/* Sample clock from EVM oscillator */
/* AD converter address: 0x014xxxxx */
/* DSP/BIOS */
/* */
/* This simple demo periodically takes 1024 samples. */
/* The samples are sign extended. The buffer can be plotted using */
/* the View–>Graph–>Time/Frequency... menu option of CCS */
/********************************************************************/
*/
/* This example is based on DSP/BIOS. DSP/BIOS is used for */
/* interrupt dispatching. The DSP/BIOS specific parts (include */
/* files and HWI_xxx) must be changed depending on the implemented */
/* interrupt mechanism */
/* DSP/BIOS headers */
#include <C6x.h>
#include <std.h>
#include <hwi.h>
/* DSP registers */
#define EMIF 0x01800004
#define DMA_CTRL 0x01840000
#define DMA_CTRL2 0x01840008
#define DMA_SRC 0x01840010
#define DMA_DST 0x01840018
#define DMA_TCT 0x01840020
/* DMA control values */
#define COUNT_VALUE 0x00020000
#define DMA_CTRL_VALUE 0x0701c041
/* 0
/* 7
/*
/*
/*
/* 01
/* 1c
/*
/*
/* 0
/*
/* 4
/*
/* 1 START = 00, start without autoinitialization */
no auto reload */
EMOD = 0, DMA keeps running on emulation stop */
FS = 1, RSYNC event used to synchronize element */
TCINT = 1, transfer controller interrupt enabled */
PRI = 1, DMA priority over CPU */
WSYNC = 00000, no synchronization */
RSYNC = 00111, ext_int 7 */
INDEX = 0, use DMA global index register A */
CNT reload = 0, use DMA global count register A */
SPLIT = 00, disabled */
ESIZE = 00, 32–bit */
DST DIR = 01, increment by 4 bytes */
SRC DIR = 00, no modification */
/* THS14xxx parameters */
#define ADC_CTRL (0x08F8)
/* 8 2‘s complement output */
/* F OFF = 1, offset correction enabled */
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