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LPC17xx platform for Cortex M port

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This commit is contained in:
Natie van Rooyen
2012-10-25 10:41:23 +02:00
parent 9d18dafd72
commit 356685005a
9 changed files with 77 additions and 39 deletions
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7
platforms/lpc17xx/Makefile
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@@ -8,8 +8,6 @@ ifeq ($(TEST_NAME),)
TEST_NAME = kern1
endif
CC = arm-none-eabi-gcc
LN = arm-none-eabi-gcc
AS = arm-none-eabi-gcc
@@ -18,7 +16,7 @@ CFLAGS := $(CFLAGS) -O3 -Os -g3 -Wall -c -mcpu=cortex-m3 -mthumb
AFLAGS := $(AFLAGS) -O3 -Os -g3 -Wall -c -fmessage-length=0 -fno-builtin -ffunction-sections -fdata-sections -mcpu=cortex-m3 -mthumb
LFLAGS := $(LFLAGS) -O3 -Os -Wall -mcpu=cortex-m3 -mthumb -Wl,-Map=system.map -Tsystem.ld
CDEFS := $(CDEFS) -DATOMTHREADS_TEST='"$(TEST_NAME)"'
CDEFS := $(CDEFS) -DATOMTHREADS_TEST='"$(TEST_NAME)"' -DBOARD_MBED_LP1768
ADEFS := $(ADEFS) -D__thumb2__ -DARM_RDI_MONITOR
LLIBS := $(LLIBS)
@@ -39,7 +37,8 @@ ASMS := $(ASMS) \
INCLUDES := $(INCLUDES) \
-I./CMSISv2p00_LPC17xx/inc \
-I$(ATOMTHREADS)/platforms/lpc17xx/CMSISv2p00_LPC17xx/inc \
-I$(ATOMTHREADS)/platforms/lpc17xx \
-I$(ATOMTHREADS)
include $(ATOMTHREADS)/ports/cortex_m/Makefile

13
platforms/lpc17xx/README
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@@ -11,7 +11,14 @@ NXP LPC17xx Platform
The "lpc17xx" platform contains sources for building the Atomthreads test
suite for the NXP LPC17xx microcontroller.
The build was tested on the "mbed NXP LPC1768" board (http://www.mbed.org)
and the sources were compiled on Ubuntu 12.0.4 with the GNU ARM tool chain
using Newlib.
The build was tested on the "mbed NXP LPC1768" board (http://www.mbed.org)
but it should work on any LPC17xx development board where UART0 can be used
to monitor the output of the test.
The NXP LPC17xx microcontrollers use the ARM Cortex M3 processor core. The
source code in this example uses the ARM CMSIS Cortex-M Access Library V2.01
to initialize the platform and Newlib as the runtime library. Also it uses a
driver provided by NXP for the UART. The CMSIS library and the UART driver
are provided as source with the sample and Newlib is expected to be installed
together with the GNU ARM tool chain.

13
platforms/lpc17xx/drivers/lpc17xx_uart.c
View File

@@ -143,6 +143,19 @@ void LPC17xx_UART_PutString (uint8_t *str)
#endif
}
/**
* @brief Write a buffer to UART0.
*
* @param buffer: buffer to be written
* @retval None
*/
void LPC17xx_UART_WriteBuffer (uint8_t *buffer, uint32_t len)
{
while (len-- != 0) {
LPC17xx_UART_PutChar(*buffer++);
}
}
/**
* @brief Print formatted string. This function takes variable length arguments.
*

2
platforms/lpc17xx/drivers/lpc17xx_uart.h
View File

@@ -29,8 +29,8 @@
void LPC17xx_UART_PutChar (uint8_t);
uint8_t LPC17xx_UART_GetChar (void);
void LPC17xx_UART_Init(uint32_t baudrate);
//void LPC17xx_UART_Printf (const uint8_t *format, ...);
void LPC17xx_UART_PutString (uint8_t *str) ;
void LPC17xx_UART_WriteBuffer (uint8_t *buffer, uint32_t len) ;
#endif // __LPC17xx_UART_H_

66
platforms/lpc17xx/main.c
View File

@@ -27,31 +27,34 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include "LPC17xx.h"
#include "drivers/lpc17xx_uart.h"
#include <stdio.h>
#include "modules.h"
#include "atom.h"
#include "tests/atomtests.h"
// for mbed board
#define LED1_GPIO (1 << 18)
#define LED2_GPIO (1 << 20)
#define LED3_GPIO (1 << 21)
#define LED4_GPIO (1 << 23)
#define LED_GET(led) (LPC_GPIO1->FIOSET & led)
#define LED_SET(led, on) { if (on) LPC_GPIO1->FIOSET = led ; else LPC_GPIO1->FIOCLR = led ; }
#define LED_TOGGLE(led) LED_SET(led, !LED_GET(led))
#ifndef ATOMTHREADS_TEST
#define ATOMTHREADS_TEST "kern1"
#endif
#define TEST_STACK_BYTE_SIZE 1024
#define IDLE_STACK_BYTE_SIZE 512
// for mbed board
#define MBED_LED1_GPIO (1 << 18)
#define MBED_LED2_GPIO (1 << 20)
#define MBED_LED3_GPIO (1 << 21)
#define MBED_LED4_GPIO (1 << 23)
#define MBED_LED_GET(led) (LPC_GPIO1->FIOSET & led)
#define MBED_LED_SET(led, on) { if (on) LPC_GPIO1->FIOSET = led ; else LPC_GPIO1->FIOCLR = led ; }
#define MBED_LED_TOGGLE(led) MBED_LED_SET(led, !MBED_LED_GET(led))
#define MBED_LED_COUNT(count) MBED_LED_SET(MBED_LED1_GPIO, count & 1) ; MBED_LED_SET(MBED_LED2_GPIO, count & 2) ; \
MBED_LED_SET(MBED_LED3_GPIO, count & 4) ; MBED_LED_SET(MBED_LED4_GPIO, count & 8) ;
#define TEST_STACK_BYTE_SIZE 512
#define IDLE_STACK_BYTE_SIZE 128
static unsigned char test_stack[TEST_STACK_BYTE_SIZE] ;
static unsigned char idle_stack[IDLE_STACK_BYTE_SIZE] ;
@@ -68,7 +71,6 @@ void
test_thread (uint32_t param)
{
uint32_t failures ;
static volatile unsigned int i ;
CRITICAL_STORE ;
failures = test_start () ;
@@ -79,18 +81,28 @@ test_thread (uint32_t param)
CRITICAL_END() ;
while(1) {
LED_TOGGLE(LED1_GPIO) ;
for (i=0; i<1000000; i++) ;
#ifdef BOARD_MBED_LP1768
MBED_LED_TOGGLE(MBED_LED1_GPIO) ;
#endif
atomTimerDelay (65) ;
}
}
int main(void) {
/**
* \b main
*
* Initialize atomthreads and start a test_thread to run the Atomthreads test suite.
*
*/
int
main(void)
{
static volatile unsigned int i ;
// mbed board
LPC_GPIO1->FIODIR |= LED1_GPIO | LED2_GPIO | LED3_GPIO | LED4_GPIO ;
#ifdef BOARD_MBED_LP1768
LPC_GPIO1->FIODIR |= MBED_LED1_GPIO | MBED_LED2_GPIO | MBED_LED3_GPIO | MBED_LED4_GPIO ;
MBED_LED_SET(MBED_LED1_GPIO | MBED_LED2_GPIO | MBED_LED3_GPIO | MBED_LED4_GPIO, 1);
#endif
dbg_format_msg ("\r\nLPC17xx SystemCoreClock = %d\r\n",SystemCoreClock) ;
@@ -99,18 +111,12 @@ int main(void) {
dbg_format_msg ("Atomthreads starting %s... \r\n", ATOMTHREADS_TEST) ;
atomOSInit(&idle_stack[0], IDLE_STACK_BYTE_SIZE, TRUE) ;
atomThreadCreate ((ATOM_TCB *)&test_tcb, TEST_THREAD_PRIO, test_thread, 0, &test_stack[0], TEST_STACK_BYTE_SIZE, TRUE);
atomThreadCreate ((ATOM_TCB *)&test_tcb, TEST_THREAD_PRIO, test_thread, 0,
&test_stack[0], TEST_STACK_BYTE_SIZE, TRUE);
atomOSStart() ;
while(1) ;
while(1) {
LED_TOGGLE(LED1_GPIO) ;
for (i=0; i<1000000; i++) ;
}
return 0 ;
}

3
platforms/lpc17xx/modules.c
View File

@@ -50,7 +50,8 @@ dbg_format_msg (char *format, ...)
va_start (args, format) ;
//CRITICAL_START() ;
vsnprintf ((char*)msg, 256, (char*)format, args) ;
vsniprintf ((char*)msg, 256, (char*)format, args) ;
LPC17xx_UART_PutString (msg) ;
//CRITICAL_END() ;

2
platforms/lpc17xx/startup.c
View File

@@ -51,6 +51,8 @@ WEAK void IntDefault_Handler(void);
//*****************************************************************************
extern int main(void);
extern void low_level_init(void);
//*****************************************************************************
//
// External declaration for the pointer to the stack top from the Linker Script

4
ports/cortex_m/atomport.h
View File

@@ -39,7 +39,9 @@
* If stddef.h is available on the platform it is simplest to include it
* from this header, otherwise define below.
*/
#ifndef NULL
#define NULL ((void *)(0))
#endif
/* Size of each stack entry / stack alignment size (e.g. 32 bits) */
#define STACK_ALIGN_SIZE sizeof(unsigned int)
@@ -56,7 +58,9 @@
* Most of these are available from types.h on this platform, which is
* included above.
*/
#ifndef POINTER
#define POINTER void *
#endif
/* *
*

6
ports/cortex_m/types.h
View File

@@ -51,9 +51,15 @@ typedef char int8_t ;
#endif
/* IO definitions (access restrictions to peripheral registers) */
#ifndef __I
#define __I volatile /*!< defines 'read only' permissions */
#endif
#ifndef __O
#define __O volatile /*!< defines 'write only' permissions */
#endif
#ifndef __IO
#define __IO volatile /*!< defines 'read / write' permissions */
#endif
#endif /* __TYPES_H__ */