Posted on October 09, 2015 at 15:39Hi all,
I am newbie in stm32f411e-disco and sw4stm32.
I am trying to write a audio playback program in my board, but I met some problem in using BSP_Audio_In_Init() and BSP_Audio_Out_Init().
This is how I start my program:
1. Create new C program with project's name ''audioTest'', and choose ''Ac6 STM32 MCU GCC'' as Toolchain.
2.In MCU Configuration, ''STM32F411E-Disco'' was chosen directly.
3. In Project Firmware Configuration, ''CubeHAL'' was chosen and ''STM32_Audio'' as additional driver.
The rest remain unchanged.
In project properties,
1. I updated the Linker Script to ''STM32F411VETx_FLASH.ld'', which I get from CubeMX
2. I added '':libPDMFilter_CM4F_GCC.a'' to libraries
The rest remain unchanged
What I want it to do in my program is:
1. toggle 4 LEDs (LED3,4,5,6) until Pushbutton is press
2. Call Audio_In_Init() (or Audio_Out_Init()).
3. IF call FAIL, Led3 will on. (false case)
ELSE both Led3 and Led4 will on. (true case)
here is my main.c:
int main(void)
{
HAL_Init();
SystemClock_Config();
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
BSP_LED_Init(LED5);
BSP_LED_Init(LED6);
BSP_PB_Init(BUTTON_KEY,BUTTON_MODE_EXTI);
while (!UserPressButton)Toggle_Leds();
if(BSP_AUDIO_IN_Init(DEFAULT_AUDIO_IN_FREQ, DEFAULT_AUDIO_IN_BIT_RESOLUTION, DEFAULT_AUDIO_IN_CHANNEL_NBR) != AUDIO_OK){
//if (BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_AUTO, DEFAULT_VOLMAX, AUDIO_FREQUENCY_16K)!= 0)
BSP_LED_On(LED3);
}
else{
BSP_LED_On(LED3);
BSP_LED_On(LED4);
}
for(;;);
}
My code was compiled and built successfully, and when I port it to my stm32f411e-disco, leds was toggling as my expectation.
However, when I press the pushbutton, the LED stop toggling, but neither true case nor false case present.
The LEDs just remain their state when I press the pushbutton.
I know program stop at calling BSP_Audio_In/Out_Init() function, but I don't know why this happen and how to fix it.
Can anyone help me and give me some advices?
Here I uploaded my full set of 'audioTest'project:
https://www.dropbox.com/sh/7fx7cu3ko5wtrn8/AACmi_OFUGxJYTuIJohumWWXa?dl=0Thank you very much
#audio #sw4stm32 #stm32f411e-disco
