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update lm4f232 startup files for PDL r8246. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1874 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
fengzi.rtt 2011-12-23 07:22:36 +00:00
parent bf4de2f204
commit f8afab609a
4 changed files with 53 additions and 64 deletions
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23
bsp/lm4f232/Libraries/startup/arm/start_rvds.S
View File

@ -19,7 +19,7 @@
; CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
; DAMAGES, FOR ANY REASON WHATSOEVER.
;
; This is part of revision 8049 of the EK-LM4F232 Firmware Package.
; This is part of revision 8264 of the EK-LM4F232 Firmware Package.
;
;******************************************************************************
@ -89,7 +89,7 @@ __Vectors
DCD StackMem + Stack ; Top of Stack
DCD Reset_Handler ; Reset Handler
DCD NmiSR ; NMI Handler
DCD HardFault_Handler ; Hard Fault Handler
DCD HardFault_Handler ; Hard Fault Handler
DCD IntDefaultHandler ; The MPU fault handler
DCD IntDefaultHandler ; The bus fault handler
DCD IntDefaultHandler ; The usage fault handler
@ -144,7 +144,7 @@ __Vectors
DCD IntDefaultHandler ; CAN0
DCD IntDefaultHandler ; CAN1
DCD IntDefaultHandler ; CAN2
DCD rt_hw_eth_handler ; Ethernet
DCD IntDefaultHandler ; Ethernet
DCD IntDefaultHandler ; Hibernate
DCD IntDefaultHandler ; USB0
DCD IntDefaultHandler ; PWM Generator 3
@ -250,6 +250,23 @@ __Vectors
;******************************************************************************
EXPORT Reset_Handler
Reset_Handler
;
; Enable the floating-point unit. This must be done here to handle the
; case where main() uses floating-point and the function prologue saves
; floating-point registers (which will fault if floating-point is not
; enabled). Any configuration of the floating-point unit using
; DriverLib APIs must be done here prior to the floating-point unit
; being enabled.
;
; Note that this does not use DriverLib since it might not be included
; in this project.
;
MOVW R0, #0xED88
MOVT R0, #0xE000
LDR R1, [R0]
ORR R1, #0x00F00000
STR R1, [R0]
;
; Call the C library enty point that handles startup. This will copy
; the .data section initializers from flash to SRAM and zero fill the

34
bsp/lm4f232/Libraries/startup/gcc/start_gcc.c
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@ -18,10 +18,13 @@
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 8049 of the EK-LM4F232 Firmware Package.
// This is part of revision 8264 of the EK-LM4F232 Firmware Package.
//
//*****************************************************************************
#include "inc/hw_nvic.h"
#include "inc/hw_types.h"
//*****************************************************************************
//
// Forward declaration of the default fault handlers.
@ -32,11 +35,16 @@ static void NmiSR(void);
static void FaultISR(void);
static void IntDefaultHandler(void);
//*****************************************************************************
//
// External declaration for the interrupt handler used by the application.
//
//*****************************************************************************
/* RT-Thread interface */
static void HardFault_Handler(void);
static void PendSV_Handler(void);
static void rt_hw_timer_handler(void);
static void rt_hw_uart_isr_1(void);
//*****************************************************************************
//
// The entry point for the application.
@ -64,7 +72,7 @@ void (* const g_pfnVectors[])(void) =
// The initial stack pointer
ResetISR, // The reset handler
NmiSR, // The NMI handler
HardFault_Handler, // The hard fault handler
HardFault_Handler, // The hard fault handler
IntDefaultHandler, // The MPU fault handler
IntDefaultHandler, // The bus fault handler
IntDefaultHandler, // The usage fault handler
@ -75,14 +83,14 @@ void (* const g_pfnVectors[])(void) =
IntDefaultHandler, // SVCall handler
IntDefaultHandler, // Debug monitor handler
0, // Reserved
PendSV_Handler, // The PendSV handler
rt_hw_timer_handler, // The SysTick handler
PendSV_Handler, // The PendSV handler
rt_hw_timer_handler, // The SysTick handler
IntDefaultHandler, // GPIO Port A
IntDefaultHandler, // GPIO Port B
IntDefaultHandler, // GPIO Port C
IntDefaultHandler, // GPIO Port D
IntDefaultHandler, // GPIO Port E
IntDefaultHandler, // UART0 Rx and Tx
rt_hw_uart_isr_1, // UART0 Rx and Tx
IntDefaultHandler, // UART1 Rx and Tx
IntDefaultHandler, // SSI0 Rx and Tx
IntDefaultHandler, // I2C0 Master and Slave
@ -268,6 +276,20 @@ ResetISR(void)
" strlt r2, [r0], #4\n"
" blt zero_loop");
//
// Enable the floating-point unit. This must be done here to handle the
// case where main() uses floating-point and the function prologue saves
// floating-point registers (which will fault if floating-point is not
// enabled). Any configuration of the floating-point unit using DriverLib
// APIs must be done here prior to the floating-point unit being enabled.
//
// Note that this does not use DriverLib since it might not be included in
// this project.
//
HWREG(NVIC_CPAC) = ((HWREG(NVIC_CPAC) &
~(NVIC_CPAC_CP10_M | NVIC_CPAC_CP11_M)) |
NVIC_CPAC_CP10_FULL | NVIC_CPAC_CP11_FULL);
//
// Call the application's entry point.
//

14
bsp/lm4f232/drivers/board.c
View File

@ -77,17 +77,11 @@ void rt_hw_eth_handler(void)
void rt_hw_board_init()
{
//
// The FPU should be enabled because some compilers will use floating-
// point registers, even for non-floating-point code. If the FPU is not
// enabled this will cause a fault. This also ensures that floating-
// point operations could be added to this application and would work
// correctly and use the hardware floating-point unit. Finally, lazy
// stacking is enabled for interrupt handlers. This allows floating-
// point instructions to be used within interrupt handlers, but at the
// expense of extra stack usage.
//
FPUEnable();
// Enable lazy stacking for interrupt handlers. This allows floating-point
// instructions to be used within interrupt handlers, but at the expense of
// extra stack usage.
//
FPULazyStackingEnable();
// set sysclock to 80M

46
bsp/lm4f232/rtconfig.py
View File

@ -14,11 +14,8 @@ if CROSS_TOOL == 'gcc':
elif CROSS_TOOL == 'keil':
PLATFORM = 'armcc'
EXEC_PATH = 'E:/Keil'
elif CROSS_TOOL == 'iar':
PLATFORM = 'iar'
IAR_PATH = 'E:/Program Files/IAR Systems/Embedded Workbench 6.0'
#
BUILD = 'debug'
if PLATFORM == 'gcc':
@ -75,45 +72,4 @@ elif PLATFORM == 'armcc':
POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
elif PLATFORM == 'iar':
# toolchains
CC = 'iccarm'
AS = 'iasmarm'
AR = 'iarchive'
LINK = 'ilinkarm'
TARGET_EXT = 'out'
DEVICE = ' -D USE_STDPERIPH_DRIVER' + ' -D STM32F10X_HD'
CFLAGS = DEVICE
CFLAGS += ' --diag_suppress Pa050'
CFLAGS += ' --no_cse'
CFLAGS += ' --no_unroll'
CFLAGS += ' --no_inline'
CFLAGS += ' --no_code_motion'
CFLAGS += ' --no_tbaa'
CFLAGS += ' --no_clustering'
CFLAGS += ' --no_scheduling'
CFLAGS += ' --debug'
CFLAGS += ' --endian=little'
CFLAGS += ' --cpu=Cortex-M3'
CFLAGS += ' -e'
CFLAGS += ' --fpu=None'
CFLAGS += ' --dlib_config "' + IAR_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
CFLAGS += ' -Ol'
CFLAGS += ' --use_c++_inline'
AFLAGS = ''
AFLAGS += ' -s+'
AFLAGS += ' -w+'
AFLAGS += ' -r'
AFLAGS += ' --cpu Cortex-M3'
AFLAGS += ' --fpu None'
LFLAGS = ' --config stm32f10x_flash.icf'
LFLAGS += ' --redirect _Printf=_PrintfTiny'
LFLAGS += ' --redirect _Scanf=_ScanfSmall'
LFLAGS += ' --entry __iar_program_start'
EXEC_PATH = IAR_PATH + '/arm/bin/'
POST_ACTION = ''