spi.h 1.6 KB

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  1. #ifndef SPI_APP_H
  2. #define SPI_APP_H
  3. #include "spi_register.h"
  4. #include "rom.h"
  5. #include "osapi.h"
  6. #include "uart.h"
  7. #include "os_type.h"
  8. /*SPI number define*/
  9. #define SPI 0
  10. #define HSPI 1
  11. //lcd drive function
  12. void spi_lcd_mode_init(uint8 spi_no);
  13. void spi_lcd_9bit_write(uint8 spi_no,uint8 high_bit,uint8 low_8bit);
  14. //spi master init funtion
  15. void spi_master_init(uint8 spi_no, unsigned cpol, unsigned cpha, uint32_t clock_div);
  16. // fill MOSI buffer
  17. void spi_mast_set_mosi(uint8 spi_no, uint16 offset, uint8 bitlen, uint32 data);
  18. // retrieve data from MISO buffer
  19. uint32 spi_mast_get_miso(uint8 spi_no, uint16 offset, uint8 bitlen);
  20. // initiate SPI transaction
  21. void spi_mast_transaction(uint8 spi_no, uint8 cmd_bitlen, uint16 cmd_data, uint8 addr_bitlen, uint32 addr_data,
  22. uint16 mosi_bitlen, uint8 dummy_bitlen, sint16 miso_bitlen);
  23. //transmit data to esp8266 slave buffer,which needs 16bit transmission ,
  24. //first byte is master command 0x04, second byte is master data
  25. void spi_byte_write_espslave(uint8 spi_no,uint8 data);
  26. //read data from esp8266 slave buffer,which needs 16bit transmission ,
  27. //first byte is master command 0x06, second byte is to read slave data
  28. void spi_byte_read_espslave(uint8 spi_no,uint8 *data);
  29. //esp8266 slave mode initial
  30. void spi_slave_init(uint8 spi_no);
  31. //esp8266 slave isr handle funtion,tiggered when any transmission is finished.
  32. //the function is registered in spi_slave_init.
  33. void spi_slave_isr_handler(void *para);
  34. //hspi test function, used to test esp8266 spi slave
  35. void hspi_master_readwrite_repeat(void);
  36. void ICACHE_FLASH_ATTR
  37. spi_test_init(void);
  38. #endif