/*! \brief Main function running the example on both the flash array and the
* User page.
*/
int main(void)
{
#if BOARD == UC3L_EK
// Note: on the AT32UC3L-EK board, there is no crystal/external clock connected
// to the OSC0 pinout XIN0/XOUT0. We shall then program the DFLL and switch the
// main clock source to the DFLL.
pcl_configure_clocks(&pcl_dfll_freq_param);
// Note: since it is dynamically computing the appropriate field values of the
// configuration registers from the parameters structure, this function is not
// optimal in terms of code size. For a code size optimal solution, it is better
// to create a new function from pcl_configure_clocks_dfll0() and modify it
// to use preprocessor computation from pre-defined target frequencies.
#else
// Configure Osc0 in crystal mode (i.e. use of an external crystal source, with
// frequency FOSC0) with an appropriate startup time then switch the main clock
// source to Osc0.
pcl_switch_to_osc(PCL_OSC0, FOSC0, OSC0_STARTUP);
#endif
// Initialize the debug USART module.
init_dbg_rs232(EXAMPLE_TARGET_PBACLK_FREQ_HZ);
// Apply the example to the flash array.
flash_rw_example("\x0C=== Using a piece of the flash array as NVRAM ===\r\n",
&flash_nvram_data);
// Apply the example to the User page.
flash_rw_example("\r\n\r\n=== Using a piece of the User page as NVRAM ===\r\n",
&user_nvram_data);
//*** Sleep mode
// This program won't be doing anything else from now on, so it might as well
// sleep.
// Modules communicating with external circuits should normally be disabled
// before entering a sleep mode that will stop the module operation.
// For this application, we must disable the USART module that the DEBUG
// software module is using.
pcl_disable_module(DBG_USART_CLOCK_MASK);
// Since we're going into a sleep mode deeper than IDLE, all HSB masters must
// be stopped before entering the sleep mode.
pcl_disable_module(AVR32_PDCA_CLK_HSB);
pcl_disable_module(AVR32_PDCA_CLK_PBA);
// If there is a chance that any PB write operations are incomplete, the CPU
// should perform a read operation from any register on the PB bus before
// executing the sleep instruction.
AVR32_INTC.ipr[0]; // Dummy read
// Go to STATIC sleep mode.
SLEEP(AVR32_PM_SMODE_STATIC);
while (true);
}
/*! \brief Main function running the example on both the flash array and the
* User page.
*/
int main(void)
{
// Switch main clock to external oscillator 0 (crystal).
pcl_switch_to_osc(PCL_OSC0, FOSC0, OSC0_STARTUP);
// Initialize the debug USART module.
init_dbg_rs232(FOSC0);
// Apply the example to the flash array.
flash_rw_example("\x0C=== Using a piece of the flash array as NVRAM ===\r\n",
&flash_nvram_data);
// Apply the example to the User page.
flash_rw_example("\r\n\r\n=== Using a piece of the User page as NVRAM ===\r\n",
&user_nvram_data);
while (true);
}
/*!
* \brief main function : perform several read/write accesses to the flash then
* lock and unlock a page in the flash.
*/
int main(void)
{
uint32_t key;
/* Initialize the SAM system */
sysclk_init();
board_init();
/* Initialize the console uart */
configure_console();
/* Output example information */
printf("-- FLASHCALW Example --\r\n");
printf("-- %s\n\r", BOARD_NAME);
printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__);
/* Apply the example to the flash array. */
flash_rw_example(
"\x0C=== Using a piece of the flash array as NVRAM ===\r\n",
(nvram_data_t *)NVRAM_PAGE_ADDRESS);
/* Apply the example to the user page. */
flash_rw_example(
"\r\n\r\n=== Using a piece of the user page as NVRAM ===\r\n",
(nvram_data_t *)USER_PAGE_ADDRESS);
/* Flash lock example */
flash_protect_example();
printf("-I- Good job!\n\r"
"-I- Now set the security bit \n\r"
"-I- Press any key to continue to see what happened...\n\r");
while (0 != usart_read(CONF_UART, &key));
/* Set security bit */
printf("-I- Setting security bit \n\r");
flashcalw_set_security_bit();
printf("-I- All tests done\n\r");
while (true) {
}
}
