void tlc5940_init(void)
{
//enable clocks to GPIO block
LPC_SYSCON->SYSAHBCLKCTRL |= (1UL << 6);
INIT_GPIO(SCLK_PORT, SCLK);
INIT_GPIO(XLAT_PORT, XLAT);
INIT_GPIO(SIN_PORT, SIN);
//INIT_GPIO(GSCLK_PORT, GSCLK);
//INIT_GPIO(DCPRG_PORT, DCPRG);
//INIT_GPIO(VPRG_PORT, VPRG);
INIT_GPIO(BLANK_PORT, BLANK);
CLEARBIT(SCLK_PORT, SCLK);
CLEARBIT(XLAT_PORT, XLAT);
CLEARBIT(SIN_PORT, SIN);
//CLEARBIT(GSCLK_PORT, GSCLK);
//CLEARBIT(DCPRG_PORT, DCPRG);
//SETBIT(VPRG_PORT, VPRG);
SETBIT(BLANK_PORT, BLANK);
/* Init IOCON - Nothing works without this... */
LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 16);
/* TMR16B1 -- GSCLK Generator */
// LPC_SYSCON->SYSAHBCLKCTRL |= (1<<8); // Enable Clock for TMR1
// LPC_IOCON->PIO1_9 |= (1<<0);
// LPC_TMR16B1->MR0 = 118; //Fire Interrupt each .02 second (20 ms or 50 Hz)
// LPC_TMR16B1->PR = 1;
// LPC_TMR16B1->EMR |= (3<<4); //Toggle on MR0
// LPC_TMR16B1->MCR |= (1<<1); //Reset on MR0
// LPC_TMR16B1->TCR |= (1<<0); // GO
/* TMR16B0 -- Interrupt timer */
LPC_SYSCON->SYSAHBCLKCTRL |= (1<<7); // Enable Clock for TMR0
//LPC_IOCON->PIO1_9 |= (1<<0);
LPC_TMR16B0->MR2 = 20000; //Fire Interrupt each .02 second (20 ms or 50 Hz)
LPC_TMR16B0->PR = 48;
LPC_TMR16B0->MCR |= (1<<6); //Interrupt on MR2
LPC_TMR16B0->MCR |= (1<<7); //Reset on MR2
NVIC_EnableIRQ(TIMER_16_0_IRQn); //enable interrupt
LPC_TMR16B0->TCR |= (1<<0); // GO
/* GS CLK */
LPC_SYSCON->CLKOUTDIV = 59;
LPC_SYSCON->CLKOUTCLKSEL = 0;
LPC_SYSCON->CLKOUTUEN = 0;
LPC_SYSCON->CLKOUTUEN = 1;
LPC_IOCON->PIO0_1 |= (1<<0);
}
void initGPIO()
{
// Use slow/fast I/O registers and
INIT_GPIO();
// Enable out direction for LEDs
IODIR |= (KEEP_ALIVE_LED | EP2_IN_LED | EP2_OUT_LED | EP1_IN_LED | ABORT_LED | USB_LED | ADMIN_LED);
// Turn off all LEDs
IOPIN |= (KEEP_ALIVE_LED | EP2_IN_LED | EP2_OUT_LED | EP1_IN_LED | ABORT_LED | USB_LED | ADMIN_LED);
}
/*-------------------------------------------------------------------
main(): This main is for device including the audio/hid/dfu
-------------------------------------------------------------------*/
void main()
{
INIT_GPIO();
TxPoweredUp = FALSE;
FePoweredUp = FALSE;
#ifdef _DEBUG_RESET_
FalseReset = 0;
#endif
// Give the XRAM time to powered up as the MCU of the emulator is faster
#ifdef _EMULATOR_
delay(80);
GLOBCTL = GLOBCTL_INIT;
delay(100);
#else
GLOBCTL = GLOBCTL_INIT;
#endif
// ROM code using PDATA starting at 0xFA00
P2 = 0xFA;
RomRecord.state = ROM_APP_RUNNING;
devInit();
// using ROM DFU handler
devRomFunction(ROM_INIT_DFU_STATE);
// using ROM USB engine
USBENGINE_EP0_SIZE = DEV_MAX_EP0_PKT;
devRomFunction(ROM_ENG_USB_INIT);
// wait till codec inited (USB Host must select device configuration)
while (AppDevice.configSetting == 0 && asq_delayed < 20000) {
devCheckReset();
asq_delayed++;
}
//#define NO_ANALOG
#ifdef NO_ANALOG
if(asq_delayed == 20000)
AppDeviceAnalogMode=TRUE;
#else
while (AppDevice.configSetting == 0)
devCheckReset();
#endif
usb_pc_answered:
asq_delayed=0;
// Take Codec (Si471x) out of reset
si47xxReset();
// Turn on status LED
//USBLed = LED_ON;
/* start transmitter, if eeprom says yes */
if(configCheckStartupNeeded()) {
if(!si47xxPowerUp() || !si47xxFMTX_hardware_cfg() || !configSetStartupConfig()) {
si47xxReset();
} else {
/* if we started stand-alone (out-of PC), just loop here infinetily */
while(AppDeviceAnalogMode) {
READ_ASQ_STATUS();
if(AppDevice.configSetting == 0) {
devCheckReset();
} else {
//we have answer from PC (usb devce connected...)
AppDeviceAnalogMode=FALSE;
goto usb_pc_answered;
}
}
}
}
AppResetFlag = FALSE;
AppSuspendFlag = FALSE;
SpkEnOut = 0;
while(1) {
// For DFU mode
if (RomRecord.state == ROM_DFU_MODE) {
// Setup for reenumeration
// as device in DFU mode
USBCTL = 0;
USBFADR = 0;
PARAMS_DFU_SETUP(DFU_TARGET_EEPROM, 0);
// this is for testing DFU_TARGET_OTHER
// DevTestDfuDataPtr = (unsigned char xdata *)0x6000;
devRomFunction(ROM_RUN_DFU_MODE);
}
devCheckReset();
devUpdateCodec();
#if 1
// Handle SUSPENSE/RESUME
if ((AppSuspendFlag == TRUE) && (AppResetFlag == FALSE)) {
devSleepModeOn();
#ifndef _EMULATOR_
PCON = 0x09;
#endif
while (AppSuspendFlag == TRUE);
devSleepModeOff();
// Delay a bit (approx. 5 ms) to account for button debounce
// if it was used to do a remote wake up.
delay(20);
} else {
HID_ACCESS(); //get HID report from PC & write to SI4711
READ_ASQ_STATUS();
}
#else
HID_ACCESS(); //get HID report from PC & write to SI4711
#endif
}
return;
// Just a dummy code to force the compiler to keep
// DevFunctionEntryParser() in the final codes
DevFunctionEntryParser(0, 0);
}
