/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
uint32_t x;
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f072xb.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* initialization of the tables values for DAC signal generations */
for (x = 0; x < SIN1_ARRAY_SIZE; x++)
{
sin1_data[x] = (uint32_t) GenerateWave(INCREMENT1, DAC_AMPL_MAX); /* as the DAC buffer are enabled */
sin1_data[x] += sin1_data[x] << 16;
}
ConfigureGPIO();
ConfigureGPIOasAnalog();
ConfigureDAC();
ConfigureDMA();
ConfigureTIM7();
__WFI(); /* If an error occurs or the execution is stop by debugger, the wait mode is exited */
SysTick_Config(48000); /* 1ms config */
while (1) /* Infinite loop only reach in case of error */
{
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
uint32_t x;
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f072xb.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* initialization of the tables values for DAC signal generations */
for (x = 0; x < SIN1_ARRAY_SIZE; x++)
{
sin1_data[x] = GenerateWave(INCREMENT1, DAC_AMPL_MAX); /* DAC 1 has its buffer enabled */
}
ConfigureGPIOasAnalog();
ConfigureDAC();
x = 0;
while (1) /* Infinite loop only reach in case of error */
{
DAC->DHR12RD = (uint32_t)((sin1_data[x] << 16) + sin1_data[x]);
x++;
if (x >= SIN1_ARRAY_SIZE)
{
x = 0;
}
}
}
// Initializes a background "wave" effect that affects scanlines startLine (inclusive) to endLine (exclusive).
// 'frequency' and 'amplitude' control the frequency and amplitude of the wave.
// 'delayInterval' controls how fast the wave travels up the screen. The wave will shift upwards one scanline every 'delayInterval'+1 frames.
// 'regOffset' is the offset of the video register to modify.
u8 ScanlineEffect_InitWave(u8 startLine, u8 endLine, u8 frequency, u8 amplitude, u8 delayInterval, u8 regOffset, bool8 applyBattleBgOffsets)
{
int i;
int offset;
struct ScanlineEffectParams params;
u8 taskId;
ScanlineEffect_Clear();
params.dmaDest = (void *)(REG_ADDR_BG0HOFS + regOffset);
params.dmaControl = SCANLINE_EFFECT_DMACNT_16BIT;
params.initState = 1;
params.unused9 = 0;
ScanlineEffect_SetParams(params);
taskId = CreateTask(TaskFunc_UpdateWavePerFrame, 0);
gTasks[taskId].tStartLine = startLine;
gTasks[taskId].tEndLine = endLine;
gTasks[taskId].tWaveLength = 256 / frequency;
gTasks[taskId].tSrcBufferOffset = 0;
gTasks[taskId].tFramesUntilMove = delayInterval;
gTasks[taskId].tDelayInterval = delayInterval;
gTasks[taskId].tRegOffset = regOffset;
gTasks[taskId].tApplyBattleBgOffsets = applyBattleBgOffsets;
gScanlineEffect.waveTaskId = taskId;
sShouldStopWaveTask = FALSE;
GenerateWave(&gScanlineEffectRegBuffers[0][320], frequency, amplitude, endLine - startLine);
offset = 320;
for (i = startLine; i < endLine; i++)
{
gScanlineEffectRegBuffers[0][i] = gScanlineEffectRegBuffers[0][offset];
gScanlineEffectRegBuffers[1][i] = gScanlineEffectRegBuffers[0][offset];
offset++;
}
return taskId;
}
