Hello.
I want to implement ISO7816 interface using LPC54608 smartcard interface. According to UM10912 , lpc546xx series can support ISO7816 interface. I found there were no ISO7816 driver example in SDK_2.x_LPC54608, so I decided to do it by myself. so configure sci0_io， sci0_sclk ，gpio reset and gpio VCC . In the end ,it didn't work. so If there is the ISO7816 driver example code under lpc546xx platform, please let me know. thanks.
/* pin configs */
CLOCK_EnableClock(kCLOCK_SmartCard0);
CLOCK_SetClkDiv(kCLOCK_DivSmartCard0Clk, 3U, false); /* main clk 12M */
smartcard interface:
base->OSR = 0 | SMARTCARD_OSR_OSFRAC(0b111)| SMARTCARD_OSR_OSINT(0b1111) | SMARTCARD_OSR_FDINT(0b0010111);
base->DLL = SMARTCARD_DLL_DLLSB(0x74); /* The SCIn Divisor Latch LSB Register(DLAB = 1) */
base->DLM = SMARTCARD_DLM_DLMSB(0x01); /* The SCIn Divisor Latch LSB Register(DLAB = 1) */
base->LCR = SMARTCARD_LCR_WLS(3) /* 8-bit character length */
| SMARTCARD_LCR_SBS(0) /* 1 stop bit */
| SMARTCARD_LCR_PE(1) /* Enable parity generation and checking */
| SMARTCARD_LCR_PS(1) /* Even Parity. */
| SMARTCARD_LCR_DLAB(1); /* Enable access to Divisor Latches */
base->FCR = SMARTCARD_FCR_FIFOEN(0) /* FIFO Enable */
| SMARTCARD_FCR_RXFIFORES(0) /* RX FIFO Reset.
1: Writing a logic 1 to SCInFCR[1] will clear all bytes in SCIn Rx FIFO, reset the pointer logic. This bit is self-clearing
0: No impact on either of SCIn FIFOs
*/
| SMARTCARD_FCR_TXFIFORES(0) /* TX FIFO Reset.
0: No impact on either of SCIn FIFOs.
1: Writing a logic 1 to SCInFCR[2] will clear all bytes in SCIn TX FIFO, reset the pointer logic. This bit is self-clearing.
*/
| SMARTCARD_FCR_DMAMODE(0) /* DMA Mode Select. When the FIFO enable (bit 0 of this register) is set */
| SMARTCARD_FCR_RXTRIGLVL(0x02); /* RX Trigger Level. Trigger level 2 (8 characters or 0x08).*/
base->IER = SMARTCARD_IER_RBRIE(1) /* RBR Interrupt Enable */
| SMARTCARD_IER_THREIE(1) /* THRE Interrupt Enable */
| SMARTCARD_IER_RXIE(1); /* Enable the RX line status interrupts */
base->SCICTRL = SMARTCARD_SCICTRL_SCIEN(1) /* Smart Card Interface Enable */
| SMARTCARD_SCICTRL_NACKDIS(1) /* A NACK response is enabled */
| SMARTCARD_SCICTRL_PROTSEL(1) /* T=0 */
| SMARTCARD_SCICTRL_TXRETRY(2) /* tx retry times: 0 */
| SMARTCARD_SCICTRL_GUARDTIME(0xff); /* Extra guard time */
