Posted on May 17, 2011 at 11:31I'm using 91x_lib and I'm trying to write a simple application that use TIM and VIC interrupts. I haven't any examples, someone have examples?
This is my code that doesn't work:
***** main.c ******
#include ''91x_lib.h''
TIM_InitTypeDef TIM_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
void main(void)
{
#ifdef DEBUG
debug();
#endif
SCU_APBPeriphClockConfig(__VIC, ENABLE);
/* Deinitialize the VIC */
VIC_DeInit();
SCU_APBPeriphClockConfig(__GPIO6, ENABLE);
GPIO_DeInit(GPIO6);
SCU_APBPeriphClockConfig(__GPIO3, ENABLE);
GPIO_DeInit(GPIO3);
SCU_APBPeriphClockConfig(__TIM01, ENABLE);
TIM_DeInit(TIM0);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput;
GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull;
GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Disable;
GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt1;
GPIO_Init(GPIO6,&GPIO_InitStructure);
/* GPIO4 configuration (PWM on P4.0 pin 3) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput;
GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull;
GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Enable;
GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt2;
GPIO_Init(GPIO3,&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_Init (TIM0, &TIM_InitStructure);
VIC_Config(TIM0_ITLine, VIC_IRQ, 0);
VIC_ITCmd(TIM0_ITLine,ENABLE);
TIM_ITConfig(TIM0,TIM_IT_IC1|TIM_IT_OC1|TIM_IT_TO|TIM_IT_IC2|TIM_IT_OC2,ENABLE);
/* Start the counter of TIM0 */
TIM_CounterCmd(TIM0, TIM_START);
while(1){
VIC_SWITCmd(TIM0_ITLine, ENABLE);
}
}
***** 91x_it.c ***
....
void TIM0_IRQHandler(void)
{
GPIO_WriteBit(GPIO6, GPIO_Pin_All, Bit_RESET );
}
....
