46bc515c6a
* App Lfrfid: init * HAL-resources: add external gpios * HAL-pwm: fix frequency calculation * App LFRFID: generic manchester decoder * App LFRFID: em-marine decoder * App iButton: fix dwt timing acquire * App LFRFID: rfid reader * App LFRFID: temporary read keys on read scene * App LFRFID: remove atomic bool init. * App LFRFID: add *.c to build * App LFRFID: unstable HID decoder * App LFRFID: HID-26 reading * HAL OS: disable sleep * App LFRFID: HID-26 reader: remove debug * App LFRFID: static data decoder-analyzer * App LFRFID: very raw Indala decoder * App LFRFID: multiprotocol reader * App LFRFID: more reliable HID decoder * App LFRFID: syntax fix * App LFRFID: simple read scene * Gui: force redraw on screen stream connect * HAL-OS: allow sleep * App LFRFID: notify api, tune view, tune scene * App LFRFID: simple rfid emulator * App LFRFID: more scenes, more reliable EM decoder. * App LFRFID: format fix * App LFRFID: warning fix * Api-hal-resources: add rfid pins, rename external pins * App LFRFID: remove unused emulator * App LFRFID: use new gpio hal api * App accessor: use new ext gpio name * App LFRFID: remove unused emulator * App LFRFID: remove debug gpio * Api-hal-resources: alternate functions init * Api-hal-rfid: new api * Api-hal-ibutton: new api * Api-hal: new headers * App LFRFID: use new api in reader subroutines * App LFRFID: use new api in emulator subroutines * App LFRFID: remove old app * App LFRFID, App iButton: fix memleak * Api-hal-rfid: comments * App LFRFID: pulse joiner helper, it combines pulses of different polarity into one pulse suitable for a timer * App LFRFID: pulse joiner, now can accept only ne pulse * App LFRFID: pulse joiner, fixes * App LFRFID: EM encoder and emulation * App LFRFID: format fixes * App LFRFID: emmarine encoder cleanup * App LFRFID: HID Encoder blank * App LFRFID: Indala Encoder blank
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#include <furi.h>
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#include <api-hal.h>
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void prepare_data(uint32_t ID, uint32_t VENDOR, uint8_t* data) {
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uint8_t value[10];
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// vendor rows (4 bit in a row)
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value[0] = (VENDOR >> 4) & 0xF;
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value[1] = VENDOR & 0xF;
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const uint8_t ROW_SIZE = 4;
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const uint8_t HEADER_SIZE = 9;
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// ID rows (4 bit in a row)
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for(int i = 0; i < 8; i++) {
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value[i + 2] = (ID >> (28 - i * ROW_SIZE)) & 0xF;
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}
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for(uint8_t i = 0; i < HEADER_SIZE; i++) {
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data[i] = 1; // header
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}
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for(uint8_t i = 0; i < 10; i++) { // data
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for(uint8_t j = 0; j < ROW_SIZE; j++) {
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data[HEADER_SIZE + i * (ROW_SIZE + 1) + j] = (value[i] >> ((ROW_SIZE - 1) - j)) & 1;
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}
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// row parity
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data[HEADER_SIZE + i * (ROW_SIZE + 1) + ROW_SIZE] =
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(data[HEADER_SIZE + i * (ROW_SIZE + 1) + 0] +
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data[HEADER_SIZE + i * (ROW_SIZE + 1) + 1] +
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data[HEADER_SIZE + i * (ROW_SIZE + 1) + 2] +
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data[HEADER_SIZE + i * (ROW_SIZE + 1) + 3]) %
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2;
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}
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for(uint8_t i = 0; i < ROW_SIZE; i++) { //checksum
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uint8_t checksum = 0;
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for(uint8_t j = 0; j < 10; j++) {
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checksum += data[HEADER_SIZE + i + j * (ROW_SIZE + 1)];
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}
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data[i + 59] = checksum % 2;
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}
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data[63] = 0; // stop bit
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/*
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printf("em data: ");
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for(uint8_t i = 0; i < 64; i++) {
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printf("%d ", data[i]);
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}
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printf("\r\n");
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*/
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}
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void em4100_emulation(uint8_t* data, GpioPin* pin) {
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taskENTER_CRITICAL();
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hal_gpio_write(pin, true);
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for(uint8_t i = 0; i < 8; i++) {
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for(uint8_t j = 0; j < 64; j++) {
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delay_us(260);
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hal_gpio_write(pin, data[j]);
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delay_us(260);
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hal_gpio_write(pin, !data[j]);
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}
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}
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hal_gpio_write(pin, false);
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taskEXIT_CRITICAL();
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}
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