static void prvSetupHardware( void )
{
/* Configuration taken from the ST code.
Set Flash banks size & address */
FMI_BankRemapConfig( 4, 2, 0, 0x80000 );
/* FMI Waite States */
FMI_Config( FMI_READ_WAIT_STATE_2, FMI_WRITE_WAIT_STATE_0, FMI_PWD_ENABLE, FMI_LVD_ENABLE, FMI_FREQ_HIGH );
/* Configure the FPLL = 96MHz, and APB to 48MHz. */
SCU_PCLKDivisorConfig( SCU_PCLK_Div2 );
SCU_PLLFactorsConfig( 192, 25, 2 );
SCU_PLLCmd( ENABLE );
SCU_MCLKSourceConfig( SCU_MCLK_PLL );
WDG_Cmd( DISABLE );
VIC_DeInit();
/* GPIO8 clock source enable, used by the LCD. */
SCU_APBPeriphClockConfig(__GPIO8, ENABLE);
GPIO_DeInit(GPIO8);
/* GPIO 9 clock source enable, used by the LCD. */
SCU_APBPeriphClockConfig(__GPIO9, ENABLE);
GPIO_DeInit(GPIO9);
/* Enable VIC clock */
SCU_AHBPeriphClockConfig(__VIC, ENABLE);
SCU_AHBPeriphReset(__VIC, DISABLE);
/* Peripheral initialisation. */
vParTestInitialise();
}
/*******************************************************************************
* Function Name : ENET_InitClocksGPIO
* Description : Reset, clocks & GPIO Ethernet Pin initializations
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void ENET_InitClocksGPIO(void)
{
GPIO_InitTypeDef GPIO_Struct;
SCU_AHBPeriphClockConfig(__ENET, ENABLE);
SCU_AHBPeriphReset(__ENET,DISABLE);
SCU_PHYCLKConfig(ENABLE);
GPIO_DeInit(GPIO1);
GPIO_Struct.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 |GPIO_Pin_3 |GPIO_Pin_4 |GPIO_Pin_7 ;
GPIO_Struct.GPIO_Type = GPIO_Type_PushPull;
GPIO_Struct.GPIO_Direction = GPIO_PinOutput;
GPIO_Struct.GPIO_IPConnected = GPIO_IPConnected_Disable;
GPIO_Struct.GPIO_Alternate=GPIO_OutputAlt2;
GPIO_Init(GPIO1, &GPIO_Struct);
GPIO_DeInit(GPIO5);
GPIO_Struct.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
GPIO_Struct.GPIO_Type = GPIO_Type_PushPull;
GPIO_Struct.GPIO_Direction = GPIO_PinOutput;
GPIO_Struct.GPIO_IPConnected = GPIO_IPConnected_Disable;
GPIO_Struct.GPIO_Alternate=GPIO_OutputAlt2;
GPIO_Init(GPIO5, &GPIO_Struct);
}
void systemInit(void)
{
//Default configuration
SCU_MCLKSourceConfig(SCU_MCLK_OSC);
//Configure the FMI
FMI_Config(FMI_READ_WAIT_STATE_2, FMI_WRITE_WAIT_STATE_0,
FMI_PWD_ENABLE, FMI_LVD_ENABLE, FMI_FREQ_HIGH);
//Configure PLL factors
SCU_PLLFactorsConfig(192, 25, 2);
//Enable PLL and wait for the the PLL to lock
SCU_PLLCmd(ENABLE);
//Set clock dividers
SCU_RCLKDivisorConfig(SCU_RCLK_Div1);
SCU_HCLKDivisorConfig(SCU_HCLK_Div1);
SCU_FMICLKDivisorConfig(SCU_FMICLK_Div1);
SCU_PCLKDivisorConfig(SCU_PCLK_Div2);
//Switch to PLL clock
SCU_MCLKSourceConfig(SCU_MCLK_PLL);
//Enable VIC clock
SCU_AHBPeriphClockConfig(__VIC, ENABLE);
//Reset VIC peripheral
VIC_DeInit();
//Assign default vectors
VIC_InitDefaultVectors();
}
//-----------------------------------------------------------------
void USB_ConfigInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
UART1_PutString("\r\n USB init...");
#ifdef MCLK96MHZ
//USB clock = MCLK/2 = 48MHz
SCU_USBCLKConfig(SCU_USBCLK_MCLK2);
#else
//USB clock = MCLK = 48MHz
SCU_USBCLKConfig(SCU_USBCLK_MCLK);
#endif
//Enable USB clock
SCU_AHBPeriphClockConfig(__USB,ENABLE);
SCU_AHBPeriphReset(__USB,DISABLE);
SCU_AHBPeriphClockConfig(__USB48M,ENABLE);
//Configure GPIO0 (D+ Pull-Up on P0.1)
SCU_APBPeriphClockConfig(__GPIO0 ,ENABLE);
SCU_APBPeriphReset(__GPIO0,DISABLE);
// GPIO_DeInit(P0.1);
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ;
GPIO_InitStructure.GPIO_IPInputConnected = GPIO_IPInputConnected_Enable;
GPIO_InitStructure.GPIO_Alternate=GPIO_OutputAlt1;
GPIO_Init (GPIO0, &GPIO_InitStructure);
// initialize the rx fifo, block UART IRQ geting a byte from fifo
fifo_init(&USB_rx_fifo, USB_rxfifobuffer, USB_RX_FIFO_LEN, NO_ITLine, USBLP_ITLine);
// initialize txd buffer
Buffer_Init(&USB_tx_buffer, USB_tbuffer, USB_TX_BUFFER_LEN);
// initialize rxd buffer
Buffer_Init(&USB_rx_buffer, USB_rbuffer, USB_RX_BUFFER_LEN);
VIC_Config(USBLP_ITLine, VIC_IRQ, PRIORITY_USB);
VIC_ITCmd(USBLP_ITLine, ENABLE);
USB_Init();
UART1_PutString("ok");
}
static void platform_config_scu()
{
volatile u16 i = 0xFFFF;
while (i-- > 0);
// SCU initialization
SCU_MCLKSourceConfig(SCU_MCLK_OSC);
SCU_PLLFactorsConfig(192,25,2); /* PLL = 96 MHz */
SCU_PLLCmd(ENABLE); /* PLL Enabled */
SCU_MCLKSourceConfig(SCU_MCLK_PLL); /* MCLK = PLL */
SCU_PFQBCCmd( ENABLE );
/* Set the RCLK Clock divider to max speed*/
SCU_RCLKDivisorConfig(SCU_RCLK_Div1);
/* Set the PCLK Clock to MCLK/2 */
SCU_PCLKDivisorConfig(SCU_PCLK_Div2);
/* Set the HCLK Clock to MCLK */
SCU_HCLKDivisorConfig(SCU_HCLK_Div1);
/* Set the BRCLK Clock to MCLK */
SCU_BRCLKDivisorConfig(SCU_BRCLK_Div1);
// Enable VIC clock
SCU_AHBPeriphClockConfig(__VIC, ENABLE);
SCU_AHBPeriphReset(__VIC, DISABLE);
// Enable the UART clocks
SCU_APBPeriphClockConfig(__UART_ALL, ENABLE);
// Enable the timer clocks
SCU_APBPeriphClockConfig(__TIM01, ENABLE);
SCU_APBPeriphReset(__TIM01, DISABLE);
SCU_APBPeriphClockConfig(__TIM23, ENABLE);
SCU_APBPeriphReset(__TIM23, DISABLE);
// Enable the GPIO clocks
SCU_APBPeriphClockConfig(__GPIO_ALL, ENABLE);
// Enable the WIU clock
SCU_APBPeriphClockConfig(__WIU, ENABLE);
SCU_APBPeriphReset(__WIU, DISABLE);
// Enable the I2C clocks
SCU_APBPeriphClockConfig(__I2C0, ENABLE);
SCU_APBPeriphReset(__I2C0, DISABLE);
SCU_APBPeriphClockConfig(__I2C1, ENABLE);
SCU_APBPeriphReset(__I2C1, DISABLE);
// Enable the ADC clocks
SCU_APBPeriphClockConfig(__ADC, ENABLE);
// Enable the SSP clocks
SCU_APBPeriphClockConfig(__SSP0,ENABLE);
SCU_APBPeriphReset(__SSP0,DISABLE);
SCU_APBPeriphClockConfig(__SSP1,ENABLE);
SCU_APBPeriphReset(__SSP1,DISABLE);
}
/*******************************************************************************
* Function Name : SCU_Configuration
* Description : Configure the different system clocks
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SCU_Configuration(void)
{
/*clock enable for used peripherals*/
SCU_APBPeriphClockConfig(__I2C0,ENABLE);
SCU_APBPeriphClockConfig(__I2C1,ENABLE);
SCU_APBPeriphClockConfig(__GPIO2, ENABLE);
SCU_AHBPeriphClockConfig(__VIC, ENABLE);
}
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
SCU_MCLKSourceConfig(SCU_MCLK_OSC); /*Use OSC as the default clock source*/
SCU_PCLKDivisorConfig(SCU_PCLK_Div1); /* ARM Peripheral bus clokdivisor = 1*/
/* source addresses and destination addresses for the Second LLI structure */
Link[0]=(u32)(&Buffer0[12]);
Link[1]=(u32)(&Buffer2[0]);
/* source addresses and destination addresses for the Third LLI structure */
Link[4]=(u32)(&Buffer0[24]);
Link[5]=(u32)(&Buffer3[0]);
/*Set the addresses of next linked list for the second LLI structure*/
Link[2]=(u32)(&Link[4]);
SCU_AHBPeriphClockConfig(__DMA,ENABLE); /* Enable the clock for DMA*/
DMA_DeInit(); /* DMA default configuration : Reset configuration*/
DMA_Cmd(ENABLE);/*Enable the DMA*/
DMA_StructInit(&DMA_InitStruct);
/* Write the first LLI*/
DMA_InitStruct.DMA_Channel_LLstItm=(u32)(&Link[0]); /*Set the addresses of next linked list for the first LLI structure*/
DMA_InitStruct.DMA_Channel_SrcAdd=(u32)(&Buffer0[0]); /* source address for the first LLI structure */
DMA_InitStruct.DMA_Channel_DesAdd=(u32)(&Buffer1[0]); /*Destination address for the first LLI structure */
DMA_InitStruct.DMA_Channel_SrcWidth= DMA_SrcWidth_Word;/* The source bus width is a word" 32 bits"*/
DMA_InitStruct.DMA_Channel_DesWidth= DMA_DesWidth_Word; /* The Destination bus width is a word word*/
DMA_InitStruct.DMA_Channel_FlowCntrl=DMA_FlowCntrlt0_DMA;/* DMA is The flow controller*/
DMA_InitStruct.DMA_Channel_TrsfSize =12; /*transfer size*/
/* Configure the DMA channel1 "the chosen channel to perform the transfer" */
DMA_ChannelSRCIncConfig (DMA_Channel1, ENABLE);
DMA_ChannelDESIncConfig (DMA_Channel1, ENABLE);
DMA_Init(DMA_Channel1,&DMA_InitStruct);/* update the DMA channel1 registers with the cfirst LLI structure*/
DMA_ChannelCmd (DMA_Channel1,ENABLE);/*Enable the DMA channel*/
/*wait for the fifo to be empty*/
while(DMA_GetChannelActiveStatus(DMA_Channel1));
while(1);
}
// Configure the interrupt vector.
static void VICConfig(void)
{
// Enable the AHB (advanced high-performance but) clock for VIC (vectored
// interrupt controller).
SCU_AHBPeriphClockConfig(__VIC,ENABLE);
// Reset the VIC registers (to their default reset values).
VIC_DeInit();
// Initialize VICs default vector registers.
VIC_InitDefaultVectors();
// Reset the wakeup interrupt unit registers.
WIU_DeInit();
}
/* Private functions ---------------------------------------------------------*/
void System_Setup(void)
{
SCU_MCLKSourceConfig(SCU_MCLK_OSC);
SCU_PCLKDivisorConfig(SCU_PCLK_Div2);
SCU_PLLFactorsConfig(128,25,4);
SCU_PLLCmd(ENABLE);
SCU_MCLKSourceConfig(SCU_MCLK_PLL);
SCU_APBPeriphClockConfig(__CAN, ENABLE);
SCU_APBPeriphClockConfig(__GPIO0, ENABLE);
SCU_APBPeriphClockConfig(__GPIO1, ENABLE);
SCU_APBPeriphClockConfig(__GPIO3, ENABLE);
SCU_APBPeriphClockConfig(__GPIO5, ENABLE);
SCU_AHBPeriphClockConfig(__VIC, ENABLE);
SCU_APBPeriphReset(__CAN, DISABLE);
SCU_APBPeriphReset(__GPIO0, DISABLE);
SCU_APBPeriphReset(__GPIO1, DISABLE);
SCU_APBPeriphReset(__GPIO3, DISABLE);
SCU_APBPeriphReset(__GPIO5, DISABLE);
SCU_AHBPeriphReset(__VIC, DISABLE);
}