/* Enable the RIT with some period `dt` */
void timer_enable_rit(int dt)
{
RIT_dt = dt;
RIT_Init(LPC_RIT);
RIT_TimerConfig(LPC_RIT, dt);
NVIC_EnableIRQ(RIT_IRQn);
}
/*********************************************************************//**
* @brief c_entry: Main RIT program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry (void) {
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
_DBG(menu);
RIT_Init(LPC_RIT);
/* Configure time_interval for RIT
* In this case: time_interval = 1000 ms = 1s
* So, RIT will generate interrupt each 1s
*/
RIT_TimerConfig(LPC_RIT,TIME_INTERVAL);
_DBG("The time interval is: ");
_DBD32(TIME_INTERVAL); _DBG_(" millisecond..");
#ifdef MCB_LPC_1768 /* Using LED2.2 for testing */
//turn on LED2.2
FIO_SetDir(2,(1<<2),1);
FIO_SetValue(2,(1<<2));
#elif defined(IAR_LPC_1768) /* Using LED1 (P1.25 for testing */
FIO_SetDir(1,(1<<25),1);
FIO_ClearValue(1,(1<<25));
#endif
NVIC_EnableIRQ(RIT_IRQn);
while(1);
return 1;
}
void RIT_init(int interval)
{
RIT_Init(LPC_RIT);
RIT_TimerConfig(LPC_RIT, interval);
RIT_Cmd(LPC_RIT, ENABLE);
NVIC_EnableIRQ(RIT_IRQn);
}
/********************************************************************//**
* @brief Initializes the RITx peripheral according to the specified
* parameters.
* @param[in] RITx RIT peripheral selected, should be:
* - LPC_RIT: RIT peripheral
* @param[in] Interval Time interval in millisecond
* @return None
*********************************************************************/
void RIT_Config(LPC_RIT_TypeDef *RITx, uint32_t time_interval)
{
RIT_Init(RITx);
/* Configure time_interval for RIT
* In this case: time_interval = 1000 ms = 1s
* So, RIT will generate interrupt each 1s
*/
RIT_TimerConfig(RITx,time_interval);
NVIC_EnableIRQ(RIT_IRQn);
}
int _RIT_Init(uint8_t * args)
{
uint8_t * arg_ptr;
LPC_RIT_TypeDef* RITx;
if ((arg_ptr = (uint8_t *) strtok(NULL, " ")) == NULL) return 1;
RITx = (LPC_RIT_TypeDef*) strtoul((char *) arg_ptr, NULL, 16);
RIT_Init(RITx);
return 0;
}
/*********************************************************************//**
* @brief Main I2S program body
**********************************************************************/
int c_entry (void) { /* Main Program */
RIT_CMP_VAL value;
PINSEL_CFG_Type PinCfg;
// DeInit NVIC and SCBNVIC
NVIC_DeInit();
NVIC_SCBDeInit();
/* Configure the NVIC Preemption Priority Bits:
* two (2) bits of preemption priority, six (6) bits of sub-priority.
* Since the Number of Bits used for Priority Levels is five (5), so the
* actual bit number of sub-priority is three (3)
*/
NVIC_SetPriorityGrouping(0x05);
// Set Vector table offset value
#if (__RAM_MODE__==1)
NVIC_SetVTOR(0x10000000);
#else
NVIC_SetVTOR(0x00000000);
#endif
debug_frmwrk_init();
_DBG(menu);
value.CMPVAL = 10000000;
value.COUNTVAL = 0x00000000;
value.MASKVAL = 0x00000000;
RIT_Init(LPC_RIT);
RIT_TimerConfig(LPC_RIT,&value);
RIT_TimerClearCmd(LPC_RIT,ENABLE);
_DBG("The value compare is: ");
_DBD32(value.CMPVAL); _DBG_(" system tick");
//Config P2.2 as GPO2.2
PinCfg.Funcnum = 0;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 2;
PinCfg.Pinnum = 2;
PINSEL_ConfigPin(&PinCfg);
//turn on LED2.2
GPIO_SetDir(2,(1<<2),1);
GPIO_SetValue(2,(1<<2));
NVIC_EnableIRQ(RIT_IRQn);
while(1);
return 1;
}
void LED_init(){
//TODO lsb first spi mode 0 0?
GPIO_SetDir(LED_OE_PORT, LED_OE_BIT, 1);
GPIO_SetValue(LED_OE_PORT, LED_OE_BIT);
GPIO_SetDir(LED_LE_PORT, LED_LE_BIT, 1);
GPIO_SetValue(LED_LE_PORT, LED_LE_BIT);
GPIO_SetDir(WF_HIBERNATE_PORT, WF_HIBERNATE_BIT, 0);
GPIO_SetValu(WF_HIBERNATE_PORT, WF_HIBERNATE_BIT);
// Initialize SPI pin connect
PINSEL_CFG_Type PinCfg;
SSP_CFG_Type SSP_ConfigStruct;
/* SCK1 */
PinCfg.Funcnum = PINSEL_FUNC_2;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLDOWN;
PinCfg.Pinnum = LED_SCK_PIN;
PinCfg.Portnum = LED_SCK_PORT;
PINSEL_ConfigPin(&PinCfg);
/* MISO1 */
PinCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinCfg.Pinnum = LED_MISO_PIN;
PinCfg.Portnum = LED_MISO_PORT;
PINSEL_ConfigPin(&PinCfg);
/* MOSI1 */
PinCfg.Pinnum = LED_MOSI_PIN;
PinCfg.Portnum = LED_MOSI_PORT;
PINSEL_ConfigPin(&PinCfg);
/* initialize SSP configuration structure */
SSP_ConfigStruct.CPHA = SSP_CPHA_FIRST;
SSP_ConfigStruct.CPOL = SSP_CPOL_HI;
SSP_ConfigStruct.ClockRate = 10000000; /* TLC5927 max freq = 30Mhz */
SSP_ConfigStruct.Databit = SSP_DATABIT_16;
SSP_ConfigStruct.Mode = SSP_MASTER_MODE;
SSP_ConfigStruct.FrameFormat = SSP_FRAME_SPI;
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
RIT_Init(LPC_RIT);
RIT_TimerConfig(LPC_RIT, TIME_INTERVAL); //TODO: decide on time interval
NVIC_SetPriority(LPC_RIT, 0); // set according to main.c
NVIC_EnableIRQ(LPC_RIT);
/* Enable SSP peripheral */
SSP_Cmd(LPC_SSP0, ENABLE);
}
void LedColorInit(void)
{
r_cnt = 0;
g_cnt = 0;
b_cnt = 0;
base_cnt = 0;
c_idx = 0; /* Color index */
/* Color initialization */
color[0].r = 20;
color[0].g = 0;
color[0].b = 0;
color[1].r = 15;
color[1].g = 2;
color[1].b = 2;
color[2].r = 15;
color[2].g = 2;
color[2].b = 0;
color[3].r = 15;
color[3].g = 0;
color[3].b = 2;
color[4].r = 10;
color[4].g = 0;
color[4].b = 5;
color[5].r = 0;
color[5].g = 20;
color[5].b = 0;
color[6].r = 5;
color[6].g = 15;
color[6].b = 0;
color[7].r = 3;
color[7].g = 20;
color[7].b = 3;
color[8].r = 0;
color[8].g = 15;
color[8].b = 2;
color[9].r = 5;
color[9].g = 20;
color[9].b = 10;
color[10].r = 0;
color[10].g = 0;
color[10].b = 20;
color[11].r = 5;
color[11].g = 0;
color[11].b = 15;
color[12].r = 0;
color[12].g = 10;
color[12].b = 20;
color[13].r = 15;
color[13].g = 0;
color[13].b = 20;
color[14].r = 0;
color[14].g = 15;
color[14].b = 20;
color[15].r = 20;
color[15].g = 5;
color[15].b = 20;
/* Initialize drivers */
LED_Init();
RIT_Init(COLOR_TIMER_BASE);
/* Turn off RGB led */
LED_TurnOff(LED_RGB_R);
LED_TurnOff(LED_RGB_G);
LED_TurnOff(LED_RGB_B);
}
