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/********************************************************************
* Project: STR9-comStick GNU (UART on Interrupt)
* File: main.c
*
* System: ARM9TDMI 32 Bit (STR912FW44X)
* Compiler: GCC 4.0.3
*
* Date: 2006-12-20
* Author: Applications@Hitex.de
*
* Rights: Hitex Development Tools GmbH
* Greschbachstr. 12
* D-76229 Karlsruhe
********************************************************************
* Description:
*
* This file is part of the GNU Example chain for STR9-comStick
* The code is bassed on usage of the STmicro library functions
* This is a small implementation of UART1 feature with command interface
* The application runs in ARM mode with high optimization level.
*
********************************************************************
* History:
*
* Revision 1.0 2006/12/20 Gn
* Initial revision
********************************************************************
* This is a preliminary version.
*
* WARRANTY: HITEX warrants that the media on which the SOFTWARE is
* furnished is free from defects in materials and workmanship under
* normal use and service for a period of ninety (90) days. HITEX entire
* liability and your exclusive remedy shall be the replacement of the
* SOFTWARE if the media is defective. This Warranty is void if failure
* of the media resulted from unauthorized modification, accident, abuse,
* or misapplication.
*
* DISCLAIMER: OTHER THAN THE ABOVE WARRANTY, THE SOFTWARE IS FURNISHED
* "AS IS" WITHOUT WARRANTY OF ANY KIND. HITEX DISCLAIMS ALL OTHER WARRANTIES,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* NEITHER HITEX NOR ITS AFFILIATES SHALL BE LIABLE FOR ANY DAMAGES ARISING
* OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE, INCLUDING DAMAGES FOR
* LOSS OF PROFITS, BUSINESS INTERRUPTION, OR ANY SPECIAL, INCIDENTAL, INDIRECT
* OR CONSEQUENTIAL DAMAGES EVEN IF HITEX HAS BEEN ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGES.
********************************************************************/
#include "defines.h"
#define global extern /* to declare external variables and functions */
#include "91x_lib.h"
#include "main.h"
extern void _enableInterrupts(void);
GPIO_InitTypeDef GPIO_InitStructure;
/* Private function prototypes -----------------------------------------------*/
void SCU_Configuration(void);
void GPIO_Configuration(void);
void VIC_Configuration(void);
static void Delay(u32 nCount);
int main (void)
{
/* Configure the system clocks */
SCU_Configuration();
/* Configure the GPIOs */
GPIO_Configuration();
/* VIC setup */
VIC_Configuration();
/* endless loop */
while (1)
{
/* Turn ON leds connected to P8.0 pins */
GPIO_WriteBit(GPIO8, GPIO_Pin_0, Bit_SET);
GPIO_WriteBit(GPIO8, GPIO_Pin_1, Bit_SET);
GPIO_WriteBit(GPIO8, GPIO_Pin_2, Bit_SET);
GPIO_WriteBit(GPIO8, GPIO_Pin_3, Bit_SET);
/* Insert delay */
Delay(0x1FFFFF);
/* Turn OFF leds connected to 88.0 pins */
GPIO_WriteBit(GPIO8, GPIO_Pin_0, Bit_RESET);
GPIO_WriteBit(GPIO8, GPIO_Pin_1, Bit_RESET);
GPIO_WriteBit(GPIO8, GPIO_Pin_2, Bit_RESET);
GPIO_WriteBit(GPIO8, GPIO_Pin_3, Bit_RESET);
/* Insert delay */
Delay(0x1FFFFF);
}
}
void SCU_Configuration(void)
{
// FMI_BankRemapConfig(4, 2, 0x00000000, 0x80000); /* Set Flash banks size & address */
FMI_Config(FMI_READ_WAIT_STATE_2, FMI_WRITE_WAIT_STATE_0, FMI_PWD_ENABLE,\
FMI_LVD_ENABLE, FMI_FREQ_HIGH); /* FMI Waite States */
SCU_MCLKSourceConfig(SCU_MCLK_OSC);
SCU_PLLFactorsConfig(192,25,2); /* PLL = 96 MHz */
SCU_PLLCmd(ENABLE); /* PLL Enabled */
SCU_RCLKDivisorConfig(SCU_RCLK_Div1); /* RCLK @96Mhz */
SCU_HCLKDivisorConfig(SCU_HCLK_Div1); /* AHB @96Mhz */
SCU_FMICLKDivisorConfig(SCU_FMICLK_Div1);/* FMI @96Mhz */
SCU_PCLKDivisorConfig(SCU_PCLK_Div2); /* APB @48Mhz */
SCU_MCLKSourceConfig(SCU_MCLK_PLL); /* MCLK @96Mhz */
/* Set the PCLK Clock to MCLK/2 */
SCU_PCLKDivisorConfig(SCU_PCLK_Div2);
/* Enable VIC clock */
SCU_APBPeriphClockConfig(__VIC, ENABLE);
SCU_APBPeriphReset(__VIC, DISABLE);
/* Enable the GPIO8 Clock */
SCU_APBPeriphClockConfig(__GPIO8, ENABLE);
/* Enable the clock for the GPIO3 */
SCU_APBPeriphClockConfig(__GPIO3, ENABLE);
}
/* GPIO Configuration --------------------------------------------------------*/
void GPIO_Configuration(void)
{
GPIO_DeInit(GPIO8);
GPIO_DeInit(GPIO3); /* GPIO3 Deinitialization */
/* LED */
GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ;
GPIO_Init (GPIO8, &GPIO_InitStructure);
/* button */
GPIO_InitStructure.GPIO_Direction = GPIO_PinInput;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ;
GPIO_Init (GPIO3, &GPIO_InitStructure);
}
void VIC_Configuration(void)
{
/* reset to default state */
VIC_DeInit();
}
/*******************************************************************************
* Function Name : Delay
* Description : Inserts a delay time.
* Input : nCount: specifies the delay time length.
*******************************************************************************/
static void Delay(u32 nCount)
{
u32 j = 0;
for(j = nCount; j > 0; j--)
asm("nop");
}
/************************************** EOF *********************************/
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