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Restructure project: remove LED demo, switch to Flash linker

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nicoboy
2026-08-01 20:33:47 +02:00
parent ad51f1d9c6
commit 8d71489f48
4 changed files with 252 additions and 297 deletions
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68
.cproject
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@ -22,30 +22,30 @@
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265
Example_2802xLEDBlink.c
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@ -1,265 +0,0 @@
//###########################################################################
//
// FILE: Example_2802xLedBlink.c
//
// TITLE: f2802x LED Blink Getting Started Program.
//
// ASSUMPTIONS:
//
// This program requires the f2802x header files.
// As supplied, this project is configured for "boot to SARAM"
// operation. The 2802x Boot Mode table is shown below.
//
// $Boot_Table
// While an emulator is connected to your device, the TRSTn pin = 1,
// which sets the device into EMU_BOOT boot mode. In this mode, the
// peripheral boot modes are as follows:
//
// Boot Mode: EMU_KEY EMU_BMODE
// (0xD00) (0xD01)
// ---------------------------------------
// Wait !=0x55AA X
// I/O 0x55AA 0x0000
// SCI 0x55AA 0x0001
// Wait 0x55AA 0x0002
// Get_Mode 0x55AA 0x0003
// SPI 0x55AA 0x0004
// I2C 0x55AA 0x0005
// OTP 0x55AA 0x0006
// Wait 0x55AA 0x0007
// Wait 0x55AA 0x0008
// SARAM 0x55AA 0x000A <-- "Boot to SARAM"
// Flash 0x55AA 0x000B
// Wait 0x55AA Other
//
// Write EMU_KEY to 0xD00 and EMU_BMODE to 0xD01 via the debugger
// according to the Boot Mode Table above. Build/Load project,
// Reset the device, and Run example
//
// $End_Boot_Table
//
// DESCRIPTION:
//
// This example configures CPU Timer0 for a 500 msec period, and toggles the
// GPIO34 LED once per interrupt. For testing purposes, this example
// also increments a counter each time the timer asserts an interrupt.
//
// Watch Variables:
// CpuTimer0.InterruptCount
//
// Monitor the GPIO34 LED blink on (for 500 msec) and off (for 500 msec)
// on the 2802x control card.
//
//###########################################################################
// $TI Release: $
// $Release Date: $
// $Copyright:
// Copyright (C) 2009-2026 Texas Instruments Incorporated - http://www.ti.com/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// $
//###########################################################################
//
// Included Files
//
#include "DSP28x_Project.h" // Device Headerfile and Examples Include File
//
// Function Prototypes
//
__interrupt void cpu_timer0_isr(void);
//
// Main
//
void main(void)
{
//
// WARNING: Always ensure you call memcpy before running any functions from
// RAM InitSysCtrl includes a call to a RAM based function and without a
// call to memcpy first, the processor will go "into the weeds"
//
#ifdef _FLASH
memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize);
#endif
//
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the f2802x_SysCtrl.c file.
//
InitSysCtrl();
//
// Step 2. Initialize GPIO:
// This example function is found in the f2802x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
//
//InitGpio(); // Skipped for this example
//
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts
//
DINT;
//
// Initialize the PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the f2802x_PieCtrl.c file.
//
InitPieCtrl();
//
// Disable CPU interrupts and clear all CPU interrupt flags
//
IER = 0x0000;
IFR = 0x0000;
//
// 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 f2802x_DefaultIsr.c.
// This function is found in f2802x_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.TINT0 = &cpu_timer0_isr;
EDIS; // This is needed to disable write to EALLOW protected registers
//
// Step 4. Initialize the Device Peripheral. This function can be
// found in f2802x_CpuTimers.c
//
//
// For this example, only initialize the Cpu Timers
//
InitCpuTimers();
//
// Configure CPU-Timer 0 to interrupt every 500 milliseconds:
// 60MHz CPU Freq, 50 millisecond Period (in uSeconds)
//
ConfigCpuTimer(&CpuTimer0, 60, 500000);
//
// To ensure precise timing, use write-only instructions to write to the
// entire register. Therefore, if any of the configuration bits are changed
// in ConfigCpuTimer and InitCpuTimers (in f2802x_CpuTimers.h), the
// below settings must also be updated.
//
//
// Use write-only instruction to set TSS bit = 0
//
CpuTimer0Regs.TCR.all = 0x4001;
//
// Step 5. User specific code, enable interrupts
//
//
// Configure GPIO12 (blue LED) and GPIO33 (red LED) as GPIO output pins
//
EALLOW;
GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 0;
GpioCtrlRegs.GPADIR.bit.GPIO12 = 1;
GpioCtrlRegs.GPBMUX1.bit.GPIO33 = 0;
GpioCtrlRegs.GPBDIR.bit.GPIO33 = 1;
GpioDataRegs.GPACLEAR.bit.GPIO12 = 1;
GpioDataRegs.GPBCLEAR.bit.GPIO33 = 1;
EDIS;
//
// Enable CPU INT1 which is connected to CPU-Timer 0
//
IER |= M_INT1;
//
// Enable TINT0 in the PIE: Group 1 interrupt 7
//
PieCtrlRegs.PIEIER1.bit.INTx7 = 1;
//
// Enable global Interrupts and higher priority real-time debug events
//
EINT; // Enable Global interrupt INTM
ERTM; // Enable Global realtime interrupt DBGM
//
// Step 6. IDLE loop. Just sit and loop forever (optional)
//
for(;;);
}
//
// cpu_timer0_isr -
//
__interrupt void
cpu_timer0_isr(void)
{
static Uint16 ledState = 0;
CpuTimer0.InterruptCount++;
//
// Alternate between the blue LED (GPIO12) and the red LED (GPIO33) every 500 milliseconds
//
if (ledState == 0)
{
GpioDataRegs.GPASET.bit.GPIO12 = 1;
GpioDataRegs.GPBCLEAR.bit.GPIO33 = 1;
}
else
{
GpioDataRegs.GPACLEAR.bit.GPIO12 = 1;
GpioDataRegs.GPBSET.bit.GPIO33 = 1;
}
ledState = (ledState + 1) % 2;
//
// Acknowledge this interrupt to receive more interrupts from group 1
//
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
}
//
// End of File
//

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/*
//###########################################################################
//
// FILE: F2802x_generic_flash.cmd
//
// TITLE: Generic Linker Command File for f2802x devices
//
//###########################################################################
// $TI Release: $
// $Release Date: $
// $Copyright:
// Copyright (C) 2009-2026 Texas Instruments Incorporated - http://www.ti.com/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// $
//###########################################################################
*/
/* ======================================================
// For Code Composer Studio V2.2 and later
// ---------------------------------------
// In addition to this memory linker command file,
// add the header linker command file directly to the project.
// The header linker command file is required to link the
// peripheral structures to the proper locations within
// the memory map.
//
// The header linker files are found in <base>\headers\cmd
//
// For BIOS applications add: F2802x_Headers_BIOS.cmd
// For nonBIOS applications add: F2802x_Headers_nonBIOS.cmd
========================================================= */
/* ======================================================
// For Code Composer Studio prior to V2.2
// --------------------------------------
// 1) Use one of the following -l statements to include the
// header linker command file in the project. The header linker
// file is required to link the peripheral structures to the proper
// locations within the memory map */
/* Uncomment this line to include file only for non-BIOS applications */
/* -l F2802x_Headers_nonBIOS.cmd */
/* Uncomment this line to include file only for BIOS applications */
/* -l F2802x_Headers_BIOS.cmd */
/* 2) In your project add the path to <base>\headers\cmd to the
library search path under project->build options, linker tab,
library search path (-i).
/*========================================================= */
/* Define the memory block start/length for the F2802x
PAGE 0 will be used to organize program sections
PAGE 1 will be used to organize data sections
Notes:
Memory blocks on F2802x are uniform (ie same
physical memory) in both PAGE 0 and PAGE 1.
That is the same memory region should not be
defined for both PAGE 0 and PAGE 1.
Doing so will result in corruption of program
and/or data.
Contiguous SARAM memory blocks or flash sectors can be
be combined if required to create a larger memory block.
*/
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
RAMM0 : origin = 0x000050, length = 0x0003B0 /* on-chip RAM block M0 */
OTP : origin = 0x3D7800, length = 0x000400 /* on-chip OTP */
FLASHA : origin = 0x3F7000, length = 0x000F80 /* on-chip FLASH */
CSM_RSVD : origin = 0x3F7F80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */
BEGIN : origin = 0x3F7FF6, length = 0x000002 /* Part of FLASHA. Used for "boot to Flash" bootloader mode. */
CSM_PWL_P0 : origin = 0x3F7FF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
FLASHB : origin = 0x3F6000, length = 0x001000 /* on-chip FLASH */
IQTABLES : origin = 0x3FE000, length = 0x000B50 /* IQ Math Tables in Boot ROM */
IQTABLES2 : origin = 0x3FEB50, length = 0x00008C /* IQ Math Tables in Boot ROM */
IQTABLES3 : origin = 0x3FEBDC, length = 0x0000AA /* IQ Math Tables in Boot ROM */
ROM : origin = 0x3FF27C, length = 0x000D44 /* Boot ROM */
RESET : origin = 0x3FFFC0, length = 0x000002 /* part of boot ROM */
VECTORS : origin = 0x3FFFC2, length = 0x00003E /* part of boot ROM */
PAGE 1 : /* Data Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1 */
BOOT_RSVD : origin = 0x000000, length = 0x000050 /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAML0 : origin = 0x008000, length = 0x000400 /* on-chip RAM block L0 */
}
/* Allocate sections to memory blocks.
Note:
codestart user defined section in DSP28_CodeStartBranch.asm used to redirect code
execution when booting to flash
ramfuncs user defined section to store functions that will be copied from Flash into RAM
*/
SECTIONS
{
/* Allocate program areas: */
codestart : > BEGIN PAGE = 0
ramfuncs : LOAD = FLASHA,
RUN = RAMM0,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
RUN_START(_RamfuncsRunStart),
PAGE = 0
.cinit : > FLASHA | FLASHB, PAGE = 0
.pinit : > FLASHA | FLASHB, PAGE = 0
.text : >> FLASHA | FLASHB, PAGE = 0
csmpasswds : > CSM_PWL_P0, PAGE = 0
csm_rsvd : > CSM_RSVD, PAGE = 0
/* Allocate uninitalized data sections: */
.stack : > RAMM1, PAGE = 1
.ebss : >> RAMM1 | RAML0, PAGE = 1
.esysmem : >> RAMM1 | RAML0, PAGE = 1
/* Initalized sections go in Flash */
/* For SDFlash to program these, they must be allocated to page 0 */
.econst : >> FLASHA | FLASHB, PAGE = 0
.switch : >> FLASHA | FLASHB, PAGE = 0
/* Allocate IQ math areas: */
IQmath : >> FLASHA | FLASHB, PAGE = 0 /* Math Code */
IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD
/* Uncomment the section below if calling the IQNexp() or IQexp()
functions from the IQMath.lib library in order to utilize the
relevant IQ Math table in Boot ROM (This saves space and Boot ROM
is 1 wait-state). If this section is not uncommented, IQmathTables2
will be loaded into other memory (SARAM, Flash, etc.) and will take
up space, but 0 wait-state is possible.
*/
/*
IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD
{
IQmath.lib<IQNexpTable.obj> (IQmathTablesRam)
}
*/
/* Uncomment the section below if calling the IQNasin() or IQasin()
functions from the IQMath.lib library in order to utilize the
relevant IQ Math table in Boot ROM (This saves space and Boot ROM
is 1 wait-state). If this section is not uncommented, IQmathTables2
will be loaded into other memory (SARAM, Flash, etc.) and will take
up space, but 0 wait-state is possible.
*/
/*
IQmathTables3 : > IQTABLES3, PAGE = 0, TYPE = NOLOAD
{
IQmath.lib<IQNasinTable.obj> (IQmathTablesRam)
}
*/
/* .reset is a standard section used by the compiler. It contains the */
/* the address of the start of _c_int00 for C Code. /*
/* When using the boot ROM this section and the CPU vector */
/* table is not needed. Thus the default type is set here to */
/* DSECT */
.reset : > RESET, PAGE = 0, TYPE = DSECT
vectors : > VECTORS PAGE = 0, TYPE = DSECT
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/