/*---------------------------------------------------------------------------------------------------------*/
int32_t main(void)
{
uint32_t au32Config[2];
/* Unlock protected registers */
SYS_UnlockReg();
SYS_Init();
UART0_Init();
printf("\n\n");
printf("+-------------------------------------------------------------+\n");
printf("| NuMicro USB Virtual COM and MassStorage Sample Code |\n");
printf("+-------------------------------------------------------------+\n");
/* Enable FMC ISP function */
FMC_Open();
/* Check User Configuration. If not match, to re-define Data Flash size and to enable Data Flash function. */
FMC_ReadConfig(au32Config, 2);
if(((au32Config[0] & 0x01) == 1) || (au32Config[1] != DATA_FLASH_BASE))
{
FMC_EnableConfigUpdate();
FMC_Erase(FMC_CONFIG0_ADDR);
au32Config[0] &= ~0x1;
au32Config[1] = DATA_FLASH_BASE;
if(FMC_WriteConfig(au32Config, 2) < 0)
return -1;
FMC_ReadConfig(au32Config, 2);
if(((au32Config[0] & 0x01) == 1) || (au32Config[1] != DATA_FLASH_BASE))
{
printf("Error: Program Config Failed!\n");
/* Disable FMC ISP function */
FMC_Close();
return -1;
}
/* Reset Chip to reload new CONFIG value */
SYS->IPRST0 = SYS_IPRST0_CHIPRST_Msk;
}
printf("NuMicro USB MassStorage Start!\n");
USBD_Open(&gsInfo, VCOM_MSC_ClassRequest, NULL);
USBD_SetConfigCallback(MSC_SetConfig);
/* Endpoint configuration */
VCOM_MSC_Init();
USBD_Start();
NVIC_EnableIRQ(USBD_IRQn);
NVIC_EnableIRQ(UART0_IRQn);
while(1)
{
VCOM_TransferData();
MSC_ProcessCmd();
}
}
/*---------------------------------------------------------------------------------------------------------*/
int32_t main(void)
{
uint32_t u32TrimInit;
uint32_t au32Config[2];
/* Unlock protected registers */
SYS_UnlockReg();
SYS_Init();
UART0_Init();
printf("\n");
printf("+-------------------------------------------------------------+\n");
printf("| NuMicro USB Virtual COM and MassStorage Sample Code |\n");
printf("+-------------------------------------------------------------+\n");
/* Enable FMC ISP function */
FMC_Open();
/* Check if Data Flash Size is 64K. If not, to re-define Data Flash size and to enable Data Flash function */
if(FMC_ReadConfig(au32Config, 2) < 0)
return -1;
if(((au32Config[0] & 0x01) == 1) || (au32Config[1] != DATA_FLASH_BASE))
{
FMC_EnableConfigUpdate();
au32Config[0] &= ~0x1;
au32Config[1] = DATA_FLASH_BASE;
FMC_Erase(CONFIG_BASE);
if(FMC_WriteConfig(au32Config, 2) < 0)
return -1;
FMC_ReadConfig(au32Config, 2);
if(((au32Config[0] & 0x01) == 1) || (au32Config[1] != DATA_FLASH_BASE))
{
printf("Error: Program Config Failed!\n");
/* Disable FMC ISP function */
FMC_Close();
return -1;
}
/* Reset Chip to reload new CONFIG value */
SYS->IPRSTC1 = SYS_IPRSTC1_CHIP_RST_Msk;
}
printf("NuMicro USB MassStorage Start!\n");
/* Open USB controller */
USBD_Open(&gsInfo, VCOM_MSC_ClassRequest, NULL);
USBD_SetConfigCallback(MSC_SetConfig);
/* Endpoint configuration */
VCOM_MSC_Init();
USBD_Start();
#if CRYSTAL_LESS
/* Backup init trim */
u32TrimInit = M32(TRIM_INIT);
/* Enable USB crystal-less */
SYS->HIRCTCTL = 0x201 | (31 << SYS_HIRCTCTL_BOUNDARY_Pos);
#endif
NVIC_EnableIRQ(USBD_IRQn);
NVIC_EnableIRQ(UART02_IRQn);
while(1)
{
#if CRYSTAL_LESS
/* Re-start crystal-less when any error found */
if (SYS->HIRCTSTS & (SYS_HIRCTSTS_CLKERIF_Msk | SYS_HIRCTSTS_TFAILIF_Msk))
{
SYS->HIRCTSTS = SYS_HIRCTSTS_CLKERIF_Msk | SYS_HIRCTSTS_TFAILIF_Msk;
if((u32TrimInit < 0x1E6) || (u32TrimInit > 0x253))
/* Re-enable crystal-less */
SYS->HIRCTCTL = 0x201 | (1 << SYS_HIRCTCTL_BOUNDARY_Pos);
else
/* Re-enable crystal-less */
SYS->HIRCTCTL = 0x201 | (31 << SYS_HIRCTCTL_BOUNDARY_Pos);
//printf("USB trim fail. Just retry. SYS->HIRCTSTS = 0x%x, SYS->HIRCTCTL = 0x%x\n", SYS->HIRCTSTS, SYS->HIRCTCTL);
}
#endif
VCOM_TransferData();
MSC_ProcessCmd();
}
}