I have written some simple code for ARM (all my code runs) and now I want to do the same things on the DSP.
Now I have written something (Some Codesnippets are from the examples from TI) but It don't work right.
The programm should write on the console a 0 when the Userbutton is pressed else it should stand a 1.
I can compile and run the code, but i dont hav e a 0/1 i always have 15730432...(On the Console at the Desktop - Putty)
later I want the LED also to be On/Off if the button is On/Off (Also in the code but at the moment // or /**/)
I have CSS 5.4, OMAPL138 LCDK and the code is NOT for SYSBIOS
Here is the source of it:
/**
* \file timerCounter.c
*
* \brief Sample application for timer.
*/
/* S2 GPIO2[4] Button S2
* S3 GPIO2[5] Button S3
* D3 GPIO1[6] LED D3
* D4 GPIO1[7] LED D4
*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
* .................................
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "gpio.h"
#include "psc.h"
//For UART output
#include "uart.h"
#include "string.h"
#include "uartStdio.h"
#include "lcdkOMAPL138.h"
/* HW Macros */
#include "hw_types.h"
/* System Defines */
#include "lcdkOMAPL138.h"
#include "soc_OMAPL138.h"
#include "hw_syscfg0_OMAPL138.h"
/****************************************************************************/
/* GLOBAL VARIABLES */
/****************************************************************************/
static volatile unsigned int pinValue = 0;
void PrintFError ( const char * format, ... )
{
char buffer[256];
va_list args;
memset( buffer,0, sizeof(buffer));
va_start (args, format);
vsprintf (buffer,format, args);
UARTPuts(buffer, -1);
va_end (args);
}
void sys_debug( const char *const fmt, ... )
{
PrintFError(fmt);
}
/*****************************************************************************
** PIN MULTIPLEXING
*****************************************************************************/
///* Pin Multiplexing of pin 4 of GPIO Bank 2.*/
void GPIOBank2Pin4PinMuxSetup(void)
{
unsigned int savePinmux = 0;
/* /brief
** - SYSCFG0 SOC_SYSCFG_0_REGS --> Memory-mapped registers for system confic module 0 (SYSCFG0) Fot Pinmultiplexing always use 0.
** - PINMUX6 PINMUX(6) --> Pin Multiplexing 6 Register - which register and for Pin xyz can be find in the datasheet on page 244.
** - PINMUX6_15_12 PINMUX6_15_12_GPIO2_4 --> ...6_15_12 6 is The PINMUX register and 15_12 is the Corresponding 4bit field in the PINMUXn register
** the 4 Bit field depends on the GPIO pin you can find the bit field in the datasheet on page 244.
*/
/*
** Clearing the bit in context and retaining the other bit values
** in PINMUX6 register.
*/
savePinmux = (HWREG(SOC_SYSCFG_0_REGS + SYSCFG0_PINMUX(6)) &
~(SYSCFG_PINMUX6_PINMUX6_15_12));
/* Setting the pins corresponding to GPIO2[4] in PINMUX6 register.*/
HWREG(SOC_SYSCFG_0_REGS + SYSCFG0_PINMUX(6)) = ( (SYSCFG_PINMUX6_PINMUX6_15_12_GPIO2_4 << SYSCFG_PINMUX6_PINMUX6_15_12_SHIFT) | savePinmux);
}
// Pin Multiplexing for the LED
void GPIOBank1Pin6PinMuxSetup(void)
{
unsigned int savePinmux = 0;
/*/brief
* for details show "void GPIOBank2Pin4PinMuxSetup(void)"
*/
savePinmux = (HWREG(SOC_SYSCFG_0_REGS + SYSCFG0_PINMUX(0)) &
~(SYSCFG_PINMUX0_PINMUX0_27_24));
HWREG(SOC_SYSCFG_0_REGS + SYSCFG0_PINMUX(0)) = ( (SYSCFG_PINMUX0_PINMUX0_27_24_GPIO0_9 << SYSCFG_PINMUX0_PINMUX0_27_24_SHIFT) | savePinmux);
}
/*****************************************************************************
** MAIN
*****************************************************************************/
int main(void)
{
//for UART output
UARTStdioInit();
//...PSC is Power Sleep Controller
PSCModuleControl(SOC_PSC_1_REGS, HW_PSC_GPIO, PSC_POWERDOMAIN_ALWAYS_ON, PSC_MDCTL_NEXT_ENABLE);
/* Pin Multiplexing of pin 4 of GPIO Bank 2.*/
GPIOBank2Pin4PinMuxSetup();
/* Pin Multiplexing of pin 6 of GPIO Bank 1.*/
//GPIOBank1Pin6PinMuxSetup();
/* Sets the pin 37(GP2[4]) as input.*/
GPIODirModeSet(SOC_GPIO_0_REGS, 37, GPIO_DIR_INPUT); //SOC_GPIO_0_REGS, 37 --> 37 is the pin - can be find in the datashees at page 900
/* Sets the pin 23 (GP1[6]) as output.*/
//GPIODirModeSet(SOC_GPIO_0_REGS, 10, GPIO_DIR_OUTPUT);
while( 1 )
{
pinValue = GPIOPinRead(SOC_GPIO_0_REGS, 37); //SOC_GPIO_0_REGS, 37 --> 37 is the pin to read. pin can be find in the datashees at page 900
sys_debug( "Pin high(1) or low(0): %i \n", pinValue); // UART Output
//GPIOPinWrite(SOC_GPIO_0_REGS, 10, pinValue); //Write pin Value (LOW or HIGH) to LED
}
return 0;
}
Here is the .CMD
/****************************************************************************/
/* OMAPL138.cmd */
/* Copyright (c) 2010 Texas Instruments Incorporated */
/* Author: Rafael de Souza */
/* */
/* Description: This file is a sample linker command file that can be */
/* used for linking programs built with the C compiler and */
/* running the resulting .out file on an OMAPL138 */
/* device. Use it as a guideline. You will want to */
/* change the memory layout to match your specific */
/* target system. You may want to change the allocation */
/* scheme according to the size of your program. */
/* */
/* Usage: The map below contains the local memory for each core */
/* Use the linker option --define=DSP_CORE=n */
/* Where n defines the core used: DSP (n=1) or ARM (n=0) */
/* */
/****************************************************************************/
MEMORY
{
#ifdef DSP_CORE /* DSP exclusive memory regions */
DSPL2ROM o = 0x00700000 l = 0x00100000 /* 1MB L2 DSP local ROM */
DSPL2RAM o = 0x00800000 l = 0x00040000 /* 256kB L2 DSP local RAM */
DSPL1PRAM o = 0x00E00000 l = 0x00008000 /* 32kB L1 DSP local Program RAM */
DSPL1DRAM o = 0x00F00000 l = 0x00008000 /* 32kB L1 DSP local Data RAM */
#endif
SHDSPL2ROM o = 0x11700000 l = 0x00100000 /* 1MB L2 Shared Internal ROM */
SHDSPL2RAM o = 0x11800000 l = 0x00040000 /* 256kB L2 Shared Internal RAM */
SHDSPL1PRAM o = 0x11E00000 l = 0x00008000 /* 32kB L1 Shared Internal Program RAM */
SHDSPL1DRAM o = 0x11F00000 l = 0x00008000 /* 32kB L1 Shared Internal Data RAM */
EMIFACS0 o = 0x40000000 l = 0x20000000 /* 512MB SDRAM Data (CS0) */
EMIFACS2 o = 0x60000000 l = 0x02000000 /* 32MB Async Data (CS2) */
EMIFACS3 o = 0x62000000 l = 0x02000000 /* 32MB Async Data (CS3) */
EMIFACS4 o = 0x64000000 l = 0x02000000 /* 32MB Async Data (CS4) */
EMIFACS5 o = 0x66000000 l = 0x02000000 /* 32MB Async Data (CS5) */
SHRAM o = 0x80000000 l = 0x00020000 /* 128kB Shared RAM */
DDR2 o = 0xC0000000 l = 0x20000000 /* 512MB DDR2 Data */
#ifndef DSP_CORE /* ARM exclusive memory regions */
ARMROM o = 0xFFFD0000 l = 0x00010000 /* 64kB ARM local ROM */
ARMRAM o = 0xFFFF0000 l = 0x00002000 /* 8kB ARM local RAM */
#endif
}
SECTIONS
{
.text > SHRAM
.stack > SHRAM
.bss > SHRAM
.cio > SHRAM
.const > SHRAM
.data > SHRAM
.switch > SHRAM
.sysmem > SHRAM
.far > SHRAM
.args > SHRAM
.ppinfo > SHRAM
.ppdata > SHRAM
/* TI-ABI or COFF sections */
.pinit > SHRAM
.cinit > SHRAM
/* EABI sections */
.binit > SHRAM
.init_array > SHRAM
.neardata > SHRAM
.fardata > SHRAM
.rodata > SHRAM
.c6xabi.exidx > SHRAM
.c6xabi.extab > SHRAM
}
Hope Someone can me help.
Sorry for my bad english...
Greetz Fernando
