8073992925
* RFID: pull antenna down when emulating * Rfid: fixed HID emulation by adding zero pulse every 4 bits * Rfid: HID emulation fixed with DSP based FSK oscillator. * Rfid: receive 125KHz clock for emulation timer from antenna and comparator * Rfid: commented unused variable * Firmware: rollback changes in f6. * Add F7 target based on F6. * F7/F6: update cube projects, apply changes to the targets, update linker scripts with correct RAM start values. * FuriHal: RFID init routine. * Scripts: update OTP tool for v11 board Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
#include "main.h"
|
|
#include <furi-hal.h>
|
|
#include <furi.h>
|
|
|
|
#define SD_DUMMY_BYTE 0xFF
|
|
|
|
const uint32_t SpiTimeout = 1000;
|
|
uint8_t SD_IO_WriteByte(uint8_t Data);
|
|
|
|
static const FuriHalSpiDevice* sd_spi_dev = &furi_hal_spi_devices[FuriHalSpiDeviceIdSdCardFast];
|
|
|
|
/******************************************************************************
|
|
BUS OPERATIONS
|
|
*******************************************************************************/
|
|
|
|
/**
|
|
* @brief SPI Write byte(s) to device
|
|
* @param DataIn: Pointer to data buffer to write
|
|
* @param DataOut: Pointer to data buffer for read data
|
|
* @param DataLength: number of bytes to write
|
|
* @retval None
|
|
*/
|
|
static void SPIx_WriteReadData(const uint8_t* DataIn, uint8_t* DataOut, uint16_t DataLength) {
|
|
furi_check(furi_hal_spi_bus_trx(sd_spi_dev->bus, (uint8_t*)DataIn, DataOut, DataLength, SpiTimeout));
|
|
}
|
|
|
|
/**
|
|
* @brief SPI Write a byte to device
|
|
* @param Value: value to be written
|
|
* @retval None
|
|
*/
|
|
__attribute__((unused)) static void SPIx_Write(uint8_t Value) {
|
|
furi_check(furi_hal_spi_bus_tx(sd_spi_dev->bus, (uint8_t*)&Value, 1, SpiTimeout));
|
|
}
|
|
|
|
/******************************************************************************
|
|
LINK OPERATIONS
|
|
*******************************************************************************/
|
|
|
|
/********************************* LINK SD ************************************/
|
|
/**
|
|
* @brief Initialize the SD Card and put it into StandBy State (Ready for
|
|
* data transfer).
|
|
* @retval None
|
|
*/
|
|
void SD_IO_Init(void) {
|
|
uint8_t counter = 0;
|
|
|
|
/* SD chip select high */
|
|
hal_gpio_write(sd_spi_dev->chip_select, true);
|
|
delay_us(10);
|
|
|
|
/* Send dummy byte 0xFF, 10 times with CS high */
|
|
/* Rise CS and MOSI for 80 clocks cycles */
|
|
for(counter = 0; counter <= 200; counter++) {
|
|
/* Send dummy byte 0xFF */
|
|
SD_IO_WriteByte(SD_DUMMY_BYTE);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Set SD interface Chip Select state
|
|
* @param val: 0 (low) or 1 (high) state
|
|
* @retval None
|
|
*/
|
|
void SD_IO_CSState(uint8_t val) {
|
|
/* Some SD Cards are prone to fail if CLK-ed too soon after CS transition. Worst case found: 8us */
|
|
if(val == 1) {
|
|
delay_us(10); // Exit guard time for some SD cards
|
|
hal_gpio_write(sd_spi_dev->chip_select, true);
|
|
} else {
|
|
hal_gpio_write(sd_spi_dev->chip_select, false);
|
|
delay_us(10); // Entry guard time for some SD cards
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Write byte(s) on the SD
|
|
* @param DataIn: Pointer to data buffer to write
|
|
* @param DataOut: Pointer to data buffer for read data
|
|
* @param DataLength: number of bytes to write
|
|
* @retval None
|
|
*/
|
|
void SD_IO_WriteReadData(const uint8_t* DataIn, uint8_t* DataOut, uint16_t DataLength) {
|
|
/* Send the byte */
|
|
SPIx_WriteReadData(DataIn, DataOut, DataLength);
|
|
}
|
|
|
|
/**
|
|
* @brief Write a byte on the SD.
|
|
* @param Data: byte to send.
|
|
* @retval Data written
|
|
*/
|
|
uint8_t SD_IO_WriteByte(uint8_t Data) {
|
|
uint8_t tmp;
|
|
|
|
/* Send the byte */
|
|
SPIx_WriteReadData(&Data, &tmp, 1);
|
|
return tmp;
|
|
}
|