void dk_uart_init(void){
LPC_SC->PCONP |= (1 << 24); //podl. zrodla zegarowego
LPC_SC->PCLKSEL1 |= (1<<16); //div cclk/1
LPC_UART2->LCR |= (1 << 7); //DLAB access
LPC_UART2->LCR |= 3; //ramka 8-bit
//ustawienie optymalnego preskalera
LPC_UART2->DLL = 31;
LPC_UART2->DLM = 0;
LPC_UART2->FDR = (3 | (4<<4));
LPC_UART2->FCR = 7; //wl FIFO i reset
PIN_Configure(0, 10, 1, 2, 0); //podl pinow
PIN_Configure(0, 11, 1, 2, 0);
LPC_UART2->LCR &= ~(1 << 7); //DLAB access
//przerwanie odbioru danych
LPC_UART2->IER |= (1<<0);
NVIC_EnableIRQ(UART2_IRQn);
}
/**
\fn int32_t USB_PinsUnconfigure (void)
\brief De-configure USB pins
\return result of pin de-configuration
- value 0: pins de-configured correctly
- value -1: pins de-configuration has failed
*/
int32_t USB_PinsUnconfigure (void) {
volatile uint8_t U1_role = 0U;
volatile uint8_t U2_role = 0U;
if (usb_pin_cfg == 0U) { return 0U; }
#if (RTE_USB_PORT_CFG == 0)
U1_role = ARM_USB_ROLE_DEVICE;
U2_role = ARM_USB_ROLE_HOST;
#elif (RTE_USB_PORT_CFG == 1)
U1_role = ARM_USB_ROLE_HOST;
U2_role = ARM_USB_ROLE_HOST;
#elif (RTE_USB_PORT_CFG == 2)
U1_role = ARM_USB_ROLE_NONE;
U2_role = ARM_USB_ROLE_NONE;
#elif (RTE_USB_PORT_CFG == 3)
U1_role = ARM_USB_ROLE_HOST;
U2_role = ARM_USB_ROLE_DEVICE;
#endif
#if (RTE_USB_PORT1_EN == 1)
switch (U1_role) {
// Host pins
case ARM_USB_ROLE_HOST:
#if (RTE_USB_PPWR1_PIN_EN == 1)
// USB_PPWR1
if (PIN_Configure (RTE_USB_PPWR1_PORT, RTE_USB_PPWR1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_PWRD1_PIN_EN == 1)
// USB_PWRD1
if (PIN_Configure (RTE_USB_PWRD1_PORT, RTE_USB_PWRD1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_OVRCR1_PIN_EN == 1)
// USB_OVRCR1
if (PIN_Configure (RTE_USB_OVRCR1_PORT, RTE_USB_OVRCR1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
break;
// Device pins
case ARM_USB_ROLE_DEVICE:
#if (RTE_USB_CONNECT1_PIN_EN == 1)
// SoftConnect1
if (PIN_Configure (RTE_USB_CONNECT1_PORT, RTE_USB_CONNECT1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_VBUS_PIN_EN == 1)
// VBUS
if (PIN_Configure (RTE_USB_VBUS_PORT, RTE_USB_VBUS_BIT, IOCON_A_RST) != 0) { return -1; }
#endif
break;
default:
return -1;
}
// Common pins configuration
#if (RTE_USB_UP_LED1_PIN_EN == 1)
// USB_UP_LED1
if (PIN_Configure (RTE_USB_UP_LED1_PORT, RTE_USB_UP_LED1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_DP1_PIN_EN == 1)
// USB_D+1
if (PIN_Configure (RTE_USB_DP1_PORT, RTE_USB_DP1_BIT, IOCON_U_RST) != 0) { return -1; }
#endif
#if (RTE_USB_DM1_PIN_EN == 1)
// USB_D-1
if (PIN_Configure (RTE_USB_DM1_PORT, RTE_USB_DM1_BIT, IOCON_U_RST) != 0) { return -1; }
#endif
#if (RTE_USB_PORT1_OTG_EN == 1)
#if (RTE_USB_INT1_PIN_EN == 1)
// USB_INT1
if (PIN_Configure (RTE_USB_INT1_PORT, RTE_USB_INT1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_SCL1_PIN_EN == 1)
// USB_SCL1
#if ((RTE_USB_SCL1_PORT == 0) && (RTE_USB_SCL1_BIT == 28))
if (PIN_Configure (RTE_USB_SCL1_PORT, RTE_USB_SCL1_BIT, IOCON_I_RST) != 0) { return -1; }
#elif ((RTE_USB_SCL1_PORT == 1) && (RTE_USB_SCL1_BIT == 28))
if (PIN_Configure (RTE_USB_SCL1_PORT, RTE_USB_SCL1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#endif
#if (RTE_USB_SDA1_PIN_EN == 1)
// USB_SDA1
#if ((RTE_USB_SDA1_PORT == 0) && (RTE_USB_SDA1_BIT == 27))
if (PIN_Configure (RTE_USB_SDA1_PORT, RTE_USB_SDA1_BIT, IOCON_I_RST) != 0) { return -1; }
#elif ((RTE_USB_SDA1_PORT == 1) && (RTE_USB_SDA1_BIT == 29))
if (PIN_Configure (RTE_USB_SDA1_PORT, RTE_USB_SDA1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#endif
#if (RTE_USB_TX_E1_PIN_EN == 1)
// USB_TX_E1
if (PIN_Configure (RTE_USB_TX_E1_PORT, RTE_USB_TX_E1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_TX_DP1_PIN_EN == 1)
// USB_TX_DP1
if (PIN_Configure (RTE_USB_TX_DP1_PORT, RTE_USB_TX_DP1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_TX_DM1_PIN_EN == 1)
// USB_TX_DM1
if (PIN_Configure (RTE_USB_TX_DM1_PORT, RTE_USB_TX_DM1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_RCV1_PIN_EN == 1)
// USB_RCV1
if (PIN_Configure (RTE_USB_RCV1_PORT, RTE_USB_RCV1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_RX_DP1_PIN_EN == 1)
// USB_RX_DP1
if (PIN_Configure (RTE_USB_RX_DP1_PORT, RTE_USB_RX_DP1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_RX_DM1_PIN_EN == 1)
// USB_RX_DM1
if (PIN_Configure (RTE_USB_RX_DM1_PORT, RTE_USB_RX_DM1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_LS1_PIN_EN == 1)
// USB_LS1
if (PIN_Configure (RTE_USB_LS1_PORT, RTE_USB_LS1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_SSPND1_PIN_EN == 1)
// USB_SSPND1
if (PIN_Configure (RTE_USB_SSPND1_PORT, RTE_USB_SSPND1_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#endif
#if (RTE_USB_PORT2_EN == 1)
switch (U2_role) {
// Host pins
case ARM_USB_ROLE_HOST:
#if (RTE_USB_PPWR2_PIN_EN == 1)
// USB_PPWR2
if (PIN_Configure (RTE_USB_PPWR2_PORT, RTE_USB_PPWR2_BIT, IOCON_A_RST) != 0) { return -1; }
#endif
#if (RTE_USB_PWRD2_PIN_EN == 1)
// USB_PWRD2
if (PIN_Configure (RTE_USB_PWRD2_PORT, RTE_USB_PWRD2_BIT, IOCON_A_RST) != 0) { return -1; }
#endif
#if (RTE_USB_OVRCR2_PIN_EN == 1)
// USB_OVRCR2
if (PIN_Configure (RTE_USB_OVRCR2_PORT, RTE_USB_OVRCR2_BIT, IOCON_A_RST) != 0) { return -1; }
#endif
break;
// Device pins
case ARM_USB_ROLE_DEVICE:
#if (RTE_USB_CONNECT2_PIN_EN == 1)
// SoftConnect2
if (PIN_Configure (RTE_USB_CONNECT2_PORT, RTE_USB_CONNECT2_BIT, IOCON_D_RST) != 0) { return -1; }
#endif
#if (RTE_USB_VBUS_PIN_EN == 1)
// VBUS
if (PIN_Configure (RTE_USB_VBUS_PORT, RTE_USB_VBUS_BIT, IOCON_A_RST) != 0) { return -1; }
#endif
break;
default:
return -1;
}
// Common pins configuration
#if (RTE_USB_UP_LED2_PIN_EN == 1)
// USB_UP_LED2
if (PIN_Configure (RTE_USB_UP_LED2_PORT, RTE_USB_UP_LED2_BIT, IOCON_A_RST) != 0) { return -1; }
#endif
#if (RTE_USB_DP2_PIN_EN == 1)
// USB_D+2 (USB_D-2: Dedicated pin)
if (PIN_Configure (RTE_USB_DP2_PORT, RTE_USB_DP2_BIT, IOCON_U_RST) != 0) { return -1; }
#endif
#endif
usb_pin_cfg = 1U;
return 0U;
#else
return -1;
#endif
}