Posted on May 17, 2011 at 09:35I have the same problem with STR912FW44. I want to use the timer0 in this very simple program:
*****************mainn.c********************
#include ''91x_lib.h''
TIM_InitTypeDef TIM_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
u8 Value=1;
long int i=0;
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
SCU_APBPeriphClockConfig(__TIM01, ENABLE); /* Enable the clock for TIM0 and TIM1 */
TIM_DeInit(TIM0); /* TIM0 Deinitialization */
SCU_APBPeriphClockConfig(__GPIO6, ENABLE); /* Enable the clock for GPIO9 */
GPIO_DeInit(GPIO6); /* GPIO9 Deinitialization */
SCU_AHBPeriphClockConfig(__VIC, ENABLE);
VIC_DeInit();
GPIO_DeInit(GPIO6);
GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ;
GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt1;
GPIO_Init (GPIO6, &GPIO_InitStructure);
/* TIM0 Structure Initialization */
TIM_StructInit(&TIM_InitStructure);
/* TIM0 Configuration in PWM Mode */
TIM_InitStructure.TIM_Mode = TIM_PWM;
TIM_InitStructure.TIM_Clock_Source = TIM_CLK_APB;
TIM_InitStructure.TIM_Prescaler = 0xFF;
TIM_InitStructure.TIM_Pulse_Level_1 = TIM_HIGH;
TIM_InitStructure.TIM_Period_Level = TIM_LOW;
TIM_InitStructure.TIM_Pulse_Length_1 = 0x3FF;
TIM_InitStructure.TIM_Full_Period = 0xFFF;
TIM_DeInit(TIM0);
TIM_Init (TIM0, &TIM_InitStructure);
VIC_DeInit();
VIC_Config(TIM0_ITLine, VIC_IRQ, 0);
VIC_ITCmd(TIM0_ITLine, ENABLE);
TIM_ITConfig(TIM0, TIM_IT_TO, ENABLE);
TIM_CounterCmd(TIM0, TIM_CLEAR);
TIM_CounterCmd(TIM0, TIM_START);
GPIO_WriteBit(GPIO6,GPIO_Pin_0,Bit_RESET);
while(1)
{
for(i=0;i!=200000;i++);
GPIO_WriteBit(GPIO6,GPIO_Pin_1,Value);
Value=!Value;
}
}
*****************91x_it.c******************
void TIM0_IRQHandler(void)
{
GPIO_WriteBit(GPIO9,GPIO_Pin_2,Bit_RESET);
TIM_ClearFlag(TIM0, TIM_FLAG_TO);
}
I used for translation ''RIDE IDE BN745'' and evaluation board REva v2.0. But program didn't work all correctly.
The command ''TIM_CounterCmd(TIM0, TIM_START);'' stopped (or destroyed) the execution of the program in the chip (LED 1 are for ever shining). This command had influece on the neverending loop ''while(1)'' and the interrupt rutine weren't calling.
When I debugged this program in the virtual machine mode I didn't find any errors which blocked the function of the loop.
When I use BN746 with patch P1,the TIM_Counter command works correctly, but interrupts don't. :-[
I don't have any problems with this program when I work in Keil.
Has anybody the user manual of the GNU ARM compiler with the syntax of C code?
[ This message was edited by: Vendelin on 16-01-2007 14:15 ]
[ This message was edited by: Vendelin on 16-01-2007 14:17 ]
