54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
#ifndef SPI_APP_H
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#define SPI_APP_H
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#include "spi_register.h"
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#include "rom.h"
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#include "osapi.h"
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#include "uart.h"
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#include "os_type.h"
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/*SPI number define*/
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#define SPI 0
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#define HSPI 1
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//lcd drive function
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void spi_lcd_mode_init(uint8 spi_no);
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void spi_lcd_9bit_write(uint8 spi_no,uint8 high_bit,uint8 low_8bit);
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//spi master init funtion
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void spi_master_init(uint8 spi_no, unsigned cpol, unsigned cpha, uint32_t clock_div);
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// fill MOSI buffer
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void spi_mast_set_mosi(uint8 spi_no, uint16 offset, uint8 bitlen, uint32 data);
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// retrieve data from MISO buffer
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uint32 spi_mast_get_miso(uint8 spi_no, uint16 offset, uint8 bitlen);
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// initiate SPI transaction
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void spi_mast_transaction(uint8 spi_no, uint8 cmd_bitlen, uint16 cmd_data, uint8 addr_bitlen, uint32 addr_data,
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uint16 mosi_bitlen, uint8 dummy_bitlen, sint16 miso_bitlen);
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//transmit data to esp8266 slave buffer,which needs 16bit transmission ,
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//first byte is master command 0x04, second byte is master data
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void spi_byte_write_espslave(uint8 spi_no,uint8 data);
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//read data from esp8266 slave buffer,which needs 16bit transmission ,
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//first byte is master command 0x06, second byte is to read slave data
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void spi_byte_read_espslave(uint8 spi_no,uint8 *data);
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//esp8266 slave mode initial
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void spi_slave_init(uint8 spi_no);
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//esp8266 slave isr handle funtion,tiggered when any transmission is finished.
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//the function is registered in spi_slave_init.
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void spi_slave_isr_handler(void *para);
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//hspi test function, used to test esp8266 spi slave
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void hspi_master_readwrite_repeat(void);
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void ICACHE_FLASH_ATTR
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spi_test_init(void);
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#endif
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