static void bootstrap()
{
const int moduleClock = 12000000;
const int KHzInHz = 1000;
const int baud = 115200;
mcgInit();
sdramInit();
svcInit_SetSVCPriority(15);
setSysTickPriority(14);
setPendSVPriority(14);
uartInit(UART2_BASE_PTR, moduleClock/KHzInHz, baud);
lcdcInit();
lcdcConsoleInit(&console);
adc_init();
vfs_init();
ledInitAll();
pushbuttonInitAll();
TSI_Init();
TSI_Calibrate();
init_memory();
//uinit();
intSerialIOInit();
flexTimerInit();
sysTickInit();
}
/*************************************************************
* Main function
************************************************************/
int main(void)
{
int err;
bootparam_t bootparam;
//Initial initialisation
pmClkInit(FCPU, FPBA);
usartInit(USART0, &usart0_options, FPBA); //Init serial communication
usartWriteLine(USART0, version);
ledInit();
usartWriteLine(USART0, "Preinit done.\nGetting bootparm.txt...\n");
//Load boot parameters from SD-card
bootparam = bootparamLoad("bootparm.txt");
done();
//Second init according to boot parameters
//pmClkReInit(bootparam.fcpu, bootparam.fpba);
usartWriteLine(USART0, "reinit USART");
usartSetBaudrate(USART0, bootparam.baudrate, bootparam.fpba);
done();
usartWriteLine(USART0, "Init SDRAM...");
sdramInit(bootparam.fcpu);
done();
spiReset(&AVR32_SPI1);
//Optional loading a banner from SD-card and display on terminal.
usartWriteLine(USART0, "Loading banner...");
banner(&bootparam);
done();
//Boot file from SD-card, according to the bootparam.txt that should exist
//on the SD-card. Otherwise default settings will be used.
//If the boot is successful we (probably) never come back here.
//If the boot is unsuccessful we come back here.
usartWriteLine(USART0, "Loading bootfile, wait at least 15 sec...");
err = boot(&bootparam);
if(err) {
//TODO: Booting another file might NOT be the proper way to handle failure to load the user specified file. Reconsider!
usartWriteLine(USART0, "\nCould not boot ");
usartWriteLine(USART0, bootparam.bootfile);
usartWriteLine(USART0, "\nWarning: Trying to boot ");
usartWriteLine(USART0, DEFAULT_AUTORUN_FILE);
strcpy(bootparam.bootfile, DEFAULT_AUTORUN_FILE);
err = boot(&bootparam);
}
if(err) {
/* Execution will only return to here on error */
usartWriteLine(USART0, "\nError booting, stopping here.");
while(1); //TODO: Sleep
}
while(1); //TODO: Sleep
}
/**
* \brief Setup the microcontroller system.
* Initialize the System and update the SystemFrequency variable.
*/
void SystemInit( void )
{
#if (__FPU_USED == 1) // Keil
/* enable FPU if available and used */
SCB->CPACR |= ((3UL << 10*2) | /* set CP10 Full Access */
(3UL << 11*2) ); /* set CP11 Full Access */
#endif
/* Set FWS according to SYS_BOARD_MCKR configuration */
EFC->EEFC_FMR = EEFC_FMR_FWS(5) | EEFC_FMR_CLOE;
/* Initialize main oscillator */
if ( !(PMC->CKGR_MOR & CKGR_MOR_MOSCSEL) )
{
PMC->CKGR_MOR = CKGR_MOR_KEY_PASSWD | SYS_BOARD_OSCOUNT | CKGR_MOR_MOSCRCEN | CKGR_MOR_MOSCXTEN;
while ( !(PMC->PMC_SR & PMC_SR_MOSCXTS) )
{
}
}
/* Switch to 3-20MHz Xtal oscillator */
PMC->CKGR_MOR = CKGR_MOR_KEY_PASSWD | SYS_BOARD_OSCOUNT | CKGR_MOR_MOSCRCEN | CKGR_MOR_MOSCXTEN | CKGR_MOR_MOSCSEL;
while ( !(PMC->PMC_SR & PMC_SR_MOSCSELS) )
{
}
PMC->PMC_MCKR = (PMC->PMC_MCKR & ~(uint32_t)PMC_MCKR_CSS_Msk) | PMC_MCKR_CSS_MAIN_CLK;
while ( !(PMC->PMC_SR & PMC_SR_MCKRDY) )
{
}
/* Initialize PLLA */
PMC->CKGR_PLLAR = SYS_BOARD_PLLAR;
while ( !(PMC->PMC_SR & PMC_SR_LOCKA) )
{
}
/* Switch to main clock */
PMC->PMC_MCKR = (SYS_BOARD_MCKR & ~PMC_MCKR_CSS_Msk) | PMC_MCKR_CSS_MAIN_CLK;
while ( !(PMC->PMC_SR & PMC_SR_MCKRDY) )
{
}
/* Switch to PLLA */
PMC->PMC_MCKR = SYS_BOARD_MCKR;
while ( !(PMC->PMC_SR & PMC_SR_MCKRDY) )
{
}
SystemCoreClock = CHIP_FREQ_CPU_MAX;
/* SDRAM initialization */
sdramInit();
}
/*****************************************************************************
*
* Description:
* Sets up LCD. Required before using LCD.
*
* Params:
* None
****************************************************************************/
void LCDSetup (void) {
//Setup external SDRAM. Used for Frame Buffer
sdramInit();
//Setup LPC2478 LCD Controller for our specific LCD
//lcd_config is defined in lcd/lcd_cfg.h
lcdInit(&lcd_config);
//Turn the LCD on
lcdTurnOn();
lcd_fillScreen(BLACK);
}
static void bootstrap()
{
const int moduleClock = 60000000;
const int KHzInHz = 1000;
const int baud = 115200;
mcgInit();
sdramInit();
svcInit_SetSVCPriority(7);
uartInit(UART2_BASE_PTR, moduleClock/KHzInHz, baud);
lcdcInit();
lcdcConsoleInit(&console);
adc_init();
vfs_init();
ledInitAll();
pushbuttonInitAll();
TSI_Init();
TSI_Calibrate();
init_memory();
uinit();
privUnprivileged();
}
