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sniff: use USART 0 instead of USART 1

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Use USART 0 connected to the SIM card side to sniff the communication.
The card side can also measure ETU times.
Do proper pin initialization.
This code can already capture the ATR communication between phone and card.
This commit is contained in:
Kévin Redon
2018-06-07 18:56:41 +02:00
parent 7f4f8983dd
commit d0b4a9da81
4 changed files with 65 additions and 70 deletions
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18
firmware/libboard/simtrace/include/board.h
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@@ -21,13 +21,11 @@
/** Smart card connection **/
/* Card RST reset signal input (active low; RST_SIM in schematic) */
#define PIN_ISO7816_RSTMC {PIO_PA7, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
#define PIN_SIM_RST {PIO_PA7, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
/* Card I/O data signal input/output (I/O_SIM in schematic) */
#define PIN_SIM_IO {PIO_PA6A_TXD0, PIOA, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}
/* Card CLK clock input (CLK_SIM in schematic) */
#define PIN_SIM_CLK {PIO_PA2B_SCK0, PIOA, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT}
/* ISO7816-communication related pins */
#define PINS_ISO7816 PIN_SIM_IO, PIN_SIM_CLK, PIN_ISO7816_RSTMC // SIM_PWEN_PIN, PIN_SIM_IO2, PIN_SIM_CLK2
/* Pin to measure card I/O timing (to start measuring the ETU on I/O activity; connected I/O_SIM in schematic) */
#define PIN_SIM_IO_INPUT {PIO_PA1B_TIOB0, PIOA, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT}
/* Pin used as clock input (to measure the ETU duration; connected to CLK_SIM in schematic) */
@@ -66,15 +64,23 @@
#define PIN_IO_SW_SNIFF {PIO_PA19, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
/* Connect all lines (VPP, CLK, RST, and I/O) between card and phone */
#define PINS_BUS_SNIFF PIN_SC_SW_SNIFF, PIN_IO_SW_SNIFF
/* Use RST_SIM line to detect phone issued card reset */
#define PIN_SIM_RST_SNIFF {PIO_PA7, PIOA, ID_PIOA, PIO_INPUT, PIO_PULLUP | PIO_DEBOUNCE | PIO_DEGLITCH | PIO_IT_EDGE }
/* Pins used to sniff phone-card communication */
#define PINS_SIM_SNIFF_SIM PIN_PHONE_IO, PIN_PHONE_CLK
/* Disable power converter 4.5-6V to 3.3V; (active high) */
#define PINS_SIM_SNIFF_SIM PIN_SIM_IO, PIN_SIM_CLK, PIN_SIM_RST_SNIFF
/* Disable power converter 4.5-6V to 3.3V (active high) */
#define PIN_SIM_PWEN_SNIFF {SIM_PWEN, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
/* Enable power switch: VCC_PHONE to VCC_SIM; (active high) */
/* Enable power switch to forward VCC_PHONE to VCC_SIM (active high) */
#define PIN_VCC_FWD_SNIFF {VCC_FWD, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
/* Use phone VCC to power card */
#define PWR_PINS PIN_SIM_PWEN_SNIFF, PIN_VCC_FWD_SNIFF
/** CCID configuration */
/* Card RST reset signal input (active low; RST_SIM in schematic) */
#define PIN_ISO7816_RSTMC {PIO_PA7, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
/* ISO7816-communication related pins */
#define PINS_ISO7816 PIN_SIM_IO, PIN_SIM_CLK, PIN_ISO7816_RSTMC // SIM_PWEN_PIN, PIN_SIM_IO2, PIN_SIM_CLK2
/** External SPI flash interface **/
/* SPI MISO pin definition */
#define PIN_SPI_MISO {PIO_PA12A_MISO, PIOA, PIOA, PIO_PERIPH_A, PIO_PULLUP}