static void leuartInit(void)
{
LEUART_Init_TypeDef leuart0Init;
leuart0Init.enable = leuartEnable; /* Activate data reception on LEUn_TX pin. */
leuart0Init.refFreq = 0; /* Inherit the clock frequenzy from the LEUART clock source */
leuart0Init.baudrate = LEUART0_BAUDRATE; /* Baudrate = 9600 bps */
leuart0Init.databits = leuartDatabits8; /* Each LEUART frame containes 8 databits */
leuart0Init.parity = leuartNoParity; /* No parity bits in use */
leuart0Init.stopbits = leuartStopbits2; /* Setting the number of stop bits in a frame to 2 bitperiods */
CMU_ClockEnable(cmuClock_CORELE, true);
CMU_ClockEnable(cmuClock_LEUART0, true);
LEUART_Reset(LEUART0);
LEUART_Init(LEUART0, &leuart0Init);
LEUART0->SIGFRAME = '\n';
/* Enable LEUART Signal Frame Interrupt */
LEUART_IntEnable(LEUART0, LEUART_IEN_SIGF);
/* Enable LEUART0 interrupt vector */
NVIC_SetPriority(LEUART0_IRQn, LEUART0_INT_PRIORITY);
LEUART0->ROUTE = LEUART_ROUTE_RXPEN | LEUART_ROUTE_TXPEN | LEUART0_LOCATION;
GPIO_PinModeSet(LEUART0_PORT, LEUART0_TX, gpioModePushPull, 1);
GPIO_PinModeSet(LEUART0_PORT, LEUART0_RX, gpioModeInputPull, 1);
lineEndReceived = xSemaphoreCreateBinary();
DMADRV_AllocateChannel(&dmaChannel, NULL);
}
/**************************************************************************//**
* @brief Main function
*****************************************************************************/
int main(void)
{
/* Chip errata */
CHIP_Init();
// Turn on the peripheral clocks
CMU_ClockSelectSet(cmuClock_HF, cmuSelect_HFXO);
CMU_ClockEnable(cmuClock_GPIO, true);
CMU_ClockEnable(cmuClock_USART1, true);
Ecode_t result;
// Initialize DMA.
result = DMADRV_Init();
if (result != ECODE_EMDRV_DMADRV_OK)
{
DEBUG_BREAK
}
// Request a DMA channel.
result = DMADRV_AllocateChannel( &dma_channel, NULL );
if (result != ECODE_EMDRV_DMADRV_OK)
{
DEBUG_BREAK
}
// Configure the USART peripheral
USART_InitSync_TypeDef init = USART_INITSYNC_DEFAULT;
init.baudrate = 50000;
init.msbf = true; // MSB first, per the TLC5940 spec
USART_InitSync(USART1, &init);
// Route the peripheral to the GPIO block
USART1->ROUTE = USART_ROUTE_TXPEN | // US1_TX
USART_ROUTE_CLKPEN | // US1_CLK
USART_ROUTE_LOCATION_LOC1; // Location #1
// Configure both the USART and control pins in GPIO
GPIO_DriveModeSet(gpioPortD, gpioDriveModeLowest);
GPIO_PinModeSet(CONTROL_PORT, SIN_PIN, gpioModePushPullDrive, 0);
GPIO_PinModeSet(CONTROL_PORT, SCLK_PIN, gpioModePushPullDrive, 0);
GPIO_PinModeSet(CONTROL_PORT, XLAT_PIN, gpioModePushPullDrive, 0);
GPIO_PinModeSet(CONTROL_PORT, VPRG_PIN, gpioModePushPullDrive, 0);
GPIO_PinModeSet(CONTROL_PORT, BLANK_PIN, gpioModePushPullDrive, 0);
GPIO_PinModeSet(CONTROL_PORT, GSCLK_PIN, gpioModePushPullDrive, 0);
// Start with DC Data
stream.mode = DOT_CORRECTION_MODE;
for (int i=0; i<MAX_CHANNELS; i++)
{
// stream.channel[i].dot_correction = 0b100001; // Test pattern
// stream.channel[i].grayscale = 0b100000000001; // Test pattern
stream.channel[i].dot_correction = 0xF; //MAX_DOT_CORRECTION;
stream.channel[i].grayscale = 0; //MAX_GRAYSCALE;
}
// Write the DC Data
write_serial_stream();
//all_white();
//rgb_display();
yellow_purple();
int count = 0;
while (1)
{
if (count %2)
{
GPIO_PinOutSet(CONTROL_PORT, GSCLK_PIN);
}
else
{
GPIO_PinOutClear(CONTROL_PORT, GSCLK_PIN);
}
count++;
if (count > 4096)
{
GPIO_PinOutSet(CONTROL_PORT, BLANK_PIN);
for (volatile int i=0; i < 10; i++)
;
GPIO_PinOutClear(CONTROL_PORT, BLANK_PIN);
count = 0;
}
for (volatile int i=0; i < 10; i++)
;
}
}
