Posted on March 11, 2015 at 15:03Hello,
I'm working on the STM32f429i und i have to program a game on it using FreeRTOS and uGfx
and i have a Gamepad(Nokia 5110 Gamepad) connected with the STM32f429i.The Buttons are working fine(i used the function GPIO_ReadInputDataBit ) but i have a problem with the Joystik axis.To measure the ADC values of the Joystik axis I used the function TM_ADC_Read(ADC3,ADC_Channel4) for the first axis(connected with PF6) and TM_ADC_Read(ADC1,ADC_Channel5) for the second axis(connected with PA5) but this functions always stop in while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET) and while(ADC_GetFlagStatus(ADC3, ADC_FLAG_EOC) == RESET) .this is my code:
static void myTask() {
font_t font1;
font1 = gdispOpenFont(''DejaVuSans24*'');
int x=0,y=0,z=0,e=0,f=0;
char str[50];
while(1)
{
f=TM_ADC_Read(ADC3,ADC_Channel4);
e=TM_ADC_Read(ADC1,ADC_Channel5);
x=GPIO_ReadInputDataBit(RTPL_Register_Buttons,RTPL_Pin_Button_1);
y=GPIO_ReadInputDataBit(RTPL_Register_Buttons,RTPL_Pin_Button_2);
z=GPIO_ReadInputDataBit(RTPL_Register_Buttons,RTPL_Pin_Button_J);
sprintf(str,''But1:%d But2:%d But3:%d J1:%d J2:%d'',x,y,z,e,f);
gdispClear(White);
gdispFillString(0,120,str, font1, Red,White);
vTaskDelay(100);
}
}
So I decided to do it in another way so i changed the code to this one:
static void myTask() {
font_t font1;
font1 = gdispOpenFont(''DejaVuSans24*'');
int x=0,y=0,z=0,e=0,f=0;
char str[50];
while(1)
{
TM_ADC_InitADC(ADC1);
f=ADC_GetConversionValue(ADC3);
TM_ADC_InitADC(ADC1);
e=ADC_GetConversionValue(ADC1);
x=GPIO_ReadInputDataBit(RTPL_Register_Buttons,RTPL_Pin_Button_1);
y=GPIO_ReadInputDataBit(RTPL_Register_Buttons,RTPL_Pin_Button_2);
z=GPIO_ReadInputDataBit(RTPL_Register_Buttons,RTPL_Pin_Button_J);
sprintf(str,''But1:%d But2:%d But3:%d J1:%d J2:%d'',x,y,z,e,f);
gdispClear(White);
gdispFillString(0,120,str, font1, Red,White);
vTaskDelay(100);
}
}
But then i have another problem: When i move the Joystik the adc_values don't changes but if i reset the Board they do.So although i use a while loop and i move the Joystik The ADC_GetConversionvalue always gives the same values and i don't understand why.
PS:Thank you for your Time and I'm sorry for my English
