ESP8266-GPIO.zip_8266当主控_easylnd_esp 控制gpio口_esp8266主控_esp8266设置

#include "driver/spi.h" /****************************************************************************** * FunctionName : spi_lcd_mode_init * Description : SPI master initial function for driving LCD TM035PDZV36 * Parameters : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid *******************************************************************************/ void spi_lcd_mode_init(uint8 spi_no) { uint32 regvalue; if(spi_no>1) return; //handle invalid input number //bit9 of PERIPHS_IO_MUX should be cleared when HSPI clock doesn't equal CPU clock //bit8 of PERIPHS_IO_MUX should be cleared when SPI clock doesn't equal CPU clock if(spi_no==SPI){ WRITE_PERI_REG(PERIPHS_IO_MUX, 0x005); //clear bit9,and bit8 PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CLK_U, 1);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CMD_U, 1);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA0_U, 1);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA1_U, 1);//configure io to spi mode }else if(spi_no==HSPI){ WRITE_PERI_REG(PERIPHS_IO_MUX, 0x105); //clear bit9 PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, 2);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode } SET_PERI_REG_MASK(SPI_USER(spi_no), SPI_CS_SETUP|SPI_CS_HOLD|SPI_USR_COMMAND); CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_FLASH_MODE); // SPI clock=CPU clock/8 WRITE_PERI_REG(SPI_CLOCK(spi_no), ((1&SPI_CLKDIV_PRE)<<SPI_CLKDIV_PRE_S)| ((3&SPI_CLKCNT_N)<<SPI_CLKCNT_N_S)| ((1&SPI_CLKCNT_H)<<SPI_CLKCNT_H_S)| ((3&SPI_CLKCNT_L)<<SPI_CLKCNT_L_S)); //clear bit 31,set SPI clock div } /****************************************************************************** * FunctionName : spi_lcd_9bit_write * Description : SPI 9bits transmission function for driving LCD TM035PDZV36 * Parameters : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid * uint8 high_bit - first high bit of the data, 0 is for "0",the other value 1-255 is for "1" * uint8 low_8bit- the rest 8bits of the data. *******************************************************************************/ void spi_lcd_9bit_write(uint8 spi_no,uint8 high_bit,uint8 low_8bit) { uint32 regvalue; uint8 bytetemp; if(spi_no>1) return; //handle invalid input number if(high_bit) bytetemp=(low_8bit>>1)|0x80; else bytetemp=(low_8bit>>1)&0x7f; regvalue= ((8&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S)|((uint32)bytetemp); //configure transmission variable,9bit transmission length and first 8 command bit if(low_8bit&0x01) regvalue|=BIT15; //write the 9th bit while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR); //waiting for spi module available WRITE_PERI_REG(SPI_USER2(spi_no), regvalue); //write command and command length into spi reg SET_PERI_REG_MASK(SPI_CMD(spi_no), SPI_USR); //transmission start } /****************************************************************************** * FunctionName : spi_master_init * Description : SPI master initial function for common byte units transmission * Parameters : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid *******************************************************************************/ void spi_master_init(uint8 spi_no) { uint32 regvalue; if(spi_no>1) return; //handle invalid input number if(spi_no==SPI){ WRITE_PERI_REG(PERIPHS_IO_MUX, 0x005); PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CLK_U, 1);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CMD_U, 1);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA0_U, 1);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA1_U, 1);//configure io to spi mode } else if(spi_no==HSPI){ WRITE_PERI_REG(PERIPHS_IO_MUX, 0x105); PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, 2);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode } SET_PERI_REG_MASK(SPI_USER(spi_no), SPI_CS_SETUP|SPI_CS_HOLD|SPI_USR_COMMAND|SPI_USR_MOSI); CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_FLASH_MODE); //clear Daul or Quad lines transmission mode CLEAR_PERI_REG_MASK(SPI_CTRL(spi_no), SPI_QIO_MODE|SPI_DIO_MODE|SPI_DOUT_MODE|SPI_QOUT_MODE); WRITE_PERI_REG(SPI_CLOCK(spi_no), ((3&SPI_CLKCNT_N)<<SPI_CLKCNT_N_S)| ((1&SPI_CLKCNT_H)<<SPI_CLKCNT_H_S)| ((3&SPI_CLKCNT_L)<<SPI_CLKCNT_L_S)); //clear bit 31,set SPI clock div //set 8bit output buffer length, the buffer is the low 8bit of register"SPI_FLASH_C0" WRITE_PERI_REG(SPI_USER1(spi_no), ((7&SPI_USR_MOSI_BITLEN)<<SPI_USR_MOSI_BITLEN_S)| ((7&SPI_USR_MISO_BITLEN)<<SPI_USR_MISO_BITLEN_S)); } /****************************************************************************** * FunctionName : spi_mast_byte_write * Description : SPI master 1 byte transmission function * Parameters : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid * uint8 data- transmitted data *******************************************************************************/ void spi_mast_byte_write(uint8 spi_no,uint8 data) { uint32 regvalue; if(spi_no>1) return; //handle invalid input number while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR); CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MOSI|SPI_USR_MISO); //SPI_FLASH_USER2 bit28-31 is cmd length,cmd bit length is value(0-15)+1, // bit15-0 is cmd value. WRITE_PERI_REG(SPI_USER2(spi_no), ((7&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S)|((uint32)data)); SET_PERI_REG_MASK(SPI_CMD(spi_no), SPI_USR); } /****************************************************************************** * FunctionName : spi_byte_write_espslave * Description : SPI master 1 byte transmission function for esp8266 slave, * transmit 1byte data to esp8266 slave buffer needs 16bit transmission , * first byte is command 0x04 to write slave buffer, second byte is data * Parameters : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid * uint8 data- transmitted data *******************************************************************************/ void spi_byte_write_espslave(uint8 spi_no,uint8 data) { uint32 regvalue; if(spi_no>1) return; //handle invalid input number while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR); SET_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MOSI); CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MISO|SPI_USR_ADDR|SPI_USR_DUMMY); //SPI_FLASH_USER2 bit28-31 is cmd length,cmd bit length is value(0-15)+1, // bit15-0 is cmd value. //0x70000000 is for 8bits cmd, 0x04 is eps8266 slave write cmd value WRITE_PERI_REG(SPI_USER2(spi_no), ((7&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S)|4); WRITE_PERI_REG(SPI_W0(spi_no), (uint32)(data)); SET_PERI_REG_MASK(SPI_CMD(spi_no), SPI_USR); } /****************************************************************************** * FunctionName : spi_byte_read_espslave * Description : SPI master 1 byte read function for esp8266 slave, * read 1byte data from esp8266 slave buffer needs 16bit transmission , * first byte is command 0x06 to read slave buffer, second byte is recieved data * Parameters : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid * uint8* data- recieved data address *******************************************************************************/ void spi_byte_read_espslave(uint8 spi_no,uint8 *data) { uint32 regvalue; if(spi_no>1) return; //handle invalid input number while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR);