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Проект каким он достался от Димы.
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nelolik
2021-02-15 09:56:02 +03:00
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238
v120/DSP2833x_examples/spi_loopback_interrupts/Example_2833xSpi_FFDLB_int.c Normal file
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// TI File $Revision: /main/9 $
// Checkin $Date: April 21, 2008 15:43:36 $
//###########################################################################
//
// FILE: Example_2833xSpi_FFDLB_int.c
//
// TITLE: DSP2833x Device Spi Digital Loop Back with Interrupts Example.
//
// ASSUMPTIONS:
//
// This program requires the DSP2833x header files.
//
// This program uses the internal loop back test mode of the peripheral.
// Other then boot mode pin configuration, no other hardware configuration
// is required.
//
// As supplied, this project is configured for "boot to SARAM"
// operation. The 2833x Boot Mode table is shown below.
// For information on configuring the boot mode of an eZdsp,
// please refer to the documentation included with the eZdsp,
//
// $Boot_Table:
//
// GPIO87 GPIO86 GPIO85 GPIO84
// XA15 XA14 XA13 XA12
// PU PU PU PU
// ==========================================
// 1 1 1 1 Jump to Flash
// 1 1 1 0 SCI-A boot
// 1 1 0 1 SPI-A boot
// 1 1 0 0 I2C-A boot
// 1 0 1 1 eCAN-A boot
// 1 0 1 0 McBSP-A boot
// 1 0 0 1 Jump to XINTF x16
// 1 0 0 0 Jump to XINTF x32
// 0 1 1 1 Jump to OTP
// 0 1 1 0 Parallel GPIO I/O boot
// 0 1 0 1 Parallel XINTF boot
// 0 1 0 0 Jump to SARAM <- "boot to SARAM"
// 0 0 1 1 Branch to check boot mode
// 0 0 1 0 Boot to flash, bypass ADC cal
// 0 0 0 1 Boot to SARAM, bypass ADC cal
// 0 0 0 0 Boot to SCI-A, bypass ADC cal
// Boot_Table_End$
//
// DESCRIPTION:
//
// This program is a SPI-A example that uses the internal loopback of
// the peripheral. Both interrupts and the SPI FIFOs are used.
//
// A stream of data is sent and then compared to the recieved stream.
//
// The sent data looks like this:
// 0000 0001 0002 0003 0004 0005 0006 0007
// 0001 0002 0003 0004 0005 0006 0007 0008
// 0002 0003 0004 0005 0006 0007 0008 0009
// ....
// FFFE FFFF 0000 0001 0002 0003 0004 0005
// FFFF 0000 0001 0002 0003 0004 0005 0006
// etc..
//
// This pattern is repeated forever.
//
//
// Watch Variables:
// sdata[8] - Data to send
// rdata[8] - Received data
// rdata_point - Used to keep track of the last position in
// the receive stream for error checking
//###########################################################################
//
// Original Source by S.D.
//
// $TI Release: DSP2833x/DSP2823x Header Files V1.20 $
// $Release Date: August 1, 2008 $
//###########################################################################
#include "DSP28x_Project.h" // Device Headerfile and Examples Include File
// Prototype statements for functions found within this file.
// interrupt void ISRTimer2(void);
interrupt void spiTxFifoIsr(void);
interrupt void spiRxFifoIsr(void);
void delay_loop(void);
void spi_fifo_init(void);
void error();
Uint16 sdata[8]; // Send data buffer
Uint16 rdata[8]; // Receive data buffer
Uint16 rdata_point; // Keep track of where we are
// in the data stream to check received data
void main(void)
{
Uint16 i;
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file.
InitSysCtrl();
// Step 2. Initalize GPIO:
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio(); // Skipped for this example
// Setup only the GP I/O only for SPI-A functionality
InitSpiaGpio();
// Step 3. Initialize PIE vector table:
// Disable and clear all CPU interrupts
DINT;
IER = 0x0000;
IFR = 0x0000;
// Initialize PIE control registers to their default state:
// This function is found in the DSP2833x_PieCtrl.c file.
InitPieCtrl();
// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example. This is useful for debug purposes.
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
// This function is found in DSP2833x_PieVect.c.
InitPieVectTable();
// Interrupts that are used in this example are re-mapped to
// ISR functions found within this file.
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.SPIRXINTA = &spiRxFifoIsr;
PieVectTable.SPITXINTA = &spiTxFifoIsr;
EDIS; // This is needed to disable write to EALLOW protected registers
// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2833x_InitPeripherals.c
// InitPeripherals(); // Not required for this example
spi_fifo_init(); // Initialize the SPI only
// Step 5. User specific code, enable interrupts:
// Initalize the send data buffer
for(i=0; i<8; i++)
{
sdata[i] = i;
}
rdata_point = 0;
// Enable interrupts required for this example
PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable the PIE block
PieCtrlRegs.PIEIER6.bit.INTx1=1; // Enable PIE Group 6, INT 1
PieCtrlRegs.PIEIER6.bit.INTx2=1; // Enable PIE Group 6, INT 2
IER=0x20; // Enable CPU INT6
EINT; // Enable Global Interrupts
// Step 6. IDLE loop. Just sit and loop forever (optional):
for(;;);
}
// Some Useful local functions
void delay_loop()
{
long i;
for (i = 0; i < 1000000; i++) {}
}
void error(void)
{
asm(" ESTOP0"); //Test failed!! Stop!
for (;;);
}
void spi_fifo_init()
{
// Initialize SPI FIFO registers
SpiaRegs.SPICCR.bit.SPISWRESET=0; // Reset SPI
SpiaRegs.SPICCR.all=0x001F; //16-bit character, Loopback mode
SpiaRegs.SPICTL.all=0x0017; //Interrupt enabled, Master/Slave XMIT enabled
SpiaRegs.SPISTS.all=0x0000;
SpiaRegs.SPIBRR=0x0063; // Baud rate
SpiaRegs.SPIFFTX.all=0xC028; // Enable FIFO's, set TX FIFO level to 8
SpiaRegs.SPIFFRX.all=0x0028; // Set RX FIFO level to 8
SpiaRegs.SPIFFCT.all=0x00;
SpiaRegs.SPIPRI.all=0x0010;
SpiaRegs.SPICCR.bit.SPISWRESET=1; // Enable SPI
SpiaRegs.SPIFFTX.bit.TXFIFO=1;
SpiaRegs.SPIFFRX.bit.RXFIFORESET=1;
}
interrupt void spiTxFifoIsr(void)
{
Uint16 i;
for(i=0;i<8;i++)
{
SpiaRegs.SPITXBUF=sdata[i]; // Send data
}
for(i=0;i<8;i++) // Increment data for next cycle
{
sdata[i]++;
}
SpiaRegs.SPIFFTX.bit.TXFFINTCLR=1; // Clear Interrupt flag
PieCtrlRegs.PIEACK.all|=0x20; // Issue PIE ACK
}
interrupt void spiRxFifoIsr(void)
{
Uint16 i;
for(i=0;i<8;i++)
{
rdata[i]=SpiaRegs.SPIRXBUF; // Read data
}
for(i=0;i<8;i++) // Check received data
{
if(rdata[i] != rdata_point+i) error();
}
rdata_point++;
SpiaRegs.SPIFFRX.bit.RXFFOVFCLR=1; // Clear Overflow flag
SpiaRegs.SPIFFRX.bit.RXFFINTCLR=1; // Clear Interrupt flag
PieCtrlRegs.PIEACK.all|=0x20; // Issue PIE ack
}
//===========================================================================
// No more.
//===========================================================================

40
v120/DSP2833x_examples/spi_loopback_interrupts/Example_2833xSpi_FFDLB_int.gel Normal file
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/*
// TI File $Revision: /main/5 $
// Checkin $Date: August 9, 2007 17:23:39 $
//###########################################################################
//
// This .gel file can be used to help load and build the example project.
// It should be unloaded from Code Composer Studio before loading another
// project.
//
//###########################################################################
// $TI Release: DSP2833x/DSP2823x Header Files V1.20 $
// $Release Date: August 1, 2008 $
//###########################################################################
*/
menuitem "DSP2833x SPI Int"
hotmenu Load_and_Build_Project()
{
GEL_ProjectLoad("Example_2833xSpi_FFDLB_int.pjt");
GEL_ProjectBuild("Example_2833xSpi_FFDLB_int.pjt");
Setup_WatchWindow();
}
hotmenu Load_Code()
{
GEL_Load(".\\debug\\Example_2833xSpi_FFDLB_int.out");
Setup_WatchWindow();
}
hotmenu Setup_WatchWindow()
{
GEL_WatchReset();
GEL_WatchAdd("sdata,x");
GEL_WatchAdd("rdata,x");
GEL_WatchAdd("rdata_point,x");
GEL_WatchAdd("SpiaRegs,x");
}

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v120/DSP2833x_examples/spi_loopback_interrupts/Example_2833xSpi_FFDLB_int.pjt Normal file
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; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectName="DSP2833x"
ProjectDir="C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\spi_loopback_interrupts\"
ProjectType=Executable
CPUFamily=TMS320C28XX
Tool="Compiler"
Tool="DspBiosBuilder"
Tool="Linker"
Config="Debug"
Config="Release"
[Source Files]
Source="..\..\DSP2833x_common\source\DSP2833x_ADC_cal.asm"
Source="..\..\DSP2833x_common\source\DSP2833x_CodeStartBranch.asm"
Source="..\..\DSP2833x_common\source\DSP2833x_DefaultIsr.c"
Source="..\..\DSP2833x_common\source\DSP2833x_PieCtrl.c"
Source="..\..\DSP2833x_common\source\DSP2833x_PieVect.c"
Source="..\..\DSP2833x_common\source\DSP2833x_Spi.c"
Source="..\..\DSP2833x_common\source\DSP2833x_SysCtrl.c"
Source="..\..\DSP2833x_common\source\DSP2833x_usDelay.asm"
Source="..\..\DSP2833x_headers\source\DSP2833x_GlobalVariableDefs.c"
Source="Example_2833xSpi_FFDLB_int.c"
Source="..\..\DSP2833x_common\cmd\28335_RAM_lnk.cmd"
Source="..\..\DSP2833x_headers\cmd\DSP2833x_Headers_nonBIOS.cmd"
["Compiler" Settings: "Debug"]
Options=-g -q -pdr -as -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\spi_loopback_interrupts\Debug" -fs"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\spi_loopback_interrupts\Debug" -i"..\..\DSP2833x_headers\include" -i"..\..\DSP2833x_common\include" -d"_DEBUG" -d"LARGE_MODEL" --float_support=fpu32 -ml -mt -v28
["Compiler" Settings: "Release"]
Options=-q -o3 -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\spi_loopback_interrupts\Release" -d"LARGE_MODEL" -ml -v28
["DspBiosBuilder" Settings: "Debug"]
Options=-v28
["DspBiosBuilder" Settings: "Release"]
Options=-v28
["Linker" Settings: "Debug"]
Options=-q -c -ecode_start -m".\Debug\Example_2833xSpi_FFDLB_int.map" -o".\Debug\Example_2833xSpi_FFDLB_int.out" -stack0x380 -w -x -i"..\..\DSP2833x_headers\include" -l"rts2800_fpu32.lib"
["Linker" Settings: "Release"]
Options=-q -c -o".\Release\Example_2833xSpi_FFDLB_int.out" -x