2019.06.24
This commit is contained in:
hnwangkg-ezio
parent
e945bfbbf3
commit
1f82e4a488
2990 changed files with 667957 additions and 444550 deletions
99
Jetson Nano/c/lib/Config/DEV_Config.c
Normal file
99
Jetson Nano/c/lib/Config/DEV_Config.c
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@ -0,0 +1,99 @@
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/*****************************************************************************
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* | File : DEV_Config.c
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* | Author : Waveshare team
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* | Function : Hardware underlying interface
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2019-06-05
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* | Info :
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "DEV_Config.h"
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/******************************************************************************
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function: Initialization pin
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parameter:
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Info:
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******************************************************************************/
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static void DEV_GPIOConfig(void)
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{
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SYSFS_GPIO_Export(EPD_CS_PIN);
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SYSFS_GPIO_Export(EPD_DC_PIN);
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SYSFS_GPIO_Export(EPD_RST_PIN);
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SYSFS_GPIO_Export(EPD_BUSY_PIN);
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SYSFS_GPIO_Direction(EPD_CS_PIN, OUT);
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SYSFS_GPIO_Direction(EPD_DC_PIN, OUT);
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SYSFS_GPIO_Direction(EPD_RST_PIN, OUT);
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SYSFS_GPIO_Direction(EPD_BUSY_PIN, IN);
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}
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void DEV_Delay_us(UWORD xus)
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{
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for(int j=xus; j > 0; j--);
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}
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void DEV_Delay_ms(UWORD xms)
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{
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for(int j=xms; j > 0; j--)
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for(int j=xms; j > 0; j--);
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}
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/******************************************************************************
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function: Module Initialize, the BCM2835 library and initialize the pins, SPI protocol
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parameter:
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Info:
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******************************************************************************/
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UBYTE DEV_Module_Init(void)
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{
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DEV_GPIOConfig();
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SYSFS_software_spi_begin();
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SYSFS_software_spi_setBitOrder(SOFTWARE_SPI_MSBFIRST);
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SYSFS_software_spi_setDataMode(SOFTWARE_SPI_Mode0);
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SYSFS_software_spi_setClockDivider(SOFTWARE_SPI_CLOCK_DIV4);
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return 0;
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}
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void DEV_SPI_WriteByte(UBYTE value)
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{
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SYSFS_software_spi_transfer(value);
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}
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/******************************************************************************
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function: Module exits, closes SPI and BCM2835 library
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parameter:
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Info:
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******************************************************************************/
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void DEV_Module_Exit(void)
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{
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SYSFS_software_spi_end();
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SYSFS_GPIO_Write(EPD_CS_PIN, LOW);
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SYSFS_GPIO_Write(EPD_DC_PIN, LOW);
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SYSFS_GPIO_Write(EPD_RST_PIN, LOW);
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SYSFS_GPIO_Unexport(EPD_CS_PIN);
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SYSFS_GPIO_Unexport(EPD_DC_PIN);
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SYSFS_GPIO_Unexport(EPD_RST_PIN);
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SYSFS_GPIO_Unexport(EPD_BUSY_PIN);
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}
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69
Jetson Nano/c/lib/Config/DEV_Config.h
Normal file
69
Jetson Nano/c/lib/Config/DEV_Config.h
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@ -0,0 +1,69 @@
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/*****************************************************************************
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* | File : DEV_Config.h
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* | Author : Waveshare team
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* | Function : Hardware underlying interface
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2019-06-04
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* | Info :
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
|
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
|
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#ifndef _DEV_CONFIG_H_
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#define _DEV_CONFIG_H_
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#include "sysfs_gpio.h"
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#include "sysfs_software_spi.h"
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#include <stdint.h>
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#include <stdio.h>
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/**
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* data
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**/
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#define UBYTE uint8_t
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#define UWORD uint16_t
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#define UDOUBLE uint32_t
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/**
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* GPIO config
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**/
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// #define EPD_MOSI_PIN SPI0_MOSI
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// #define EPD_SCK_PIN SPI0_SCK
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#define EPD_CS_PIN SPI0_CS0
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#define EPD_DC_PIN GPIO25
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#define EPD_RST_PIN GPIO17
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#define EPD_BUSY_PIN GPIO24
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/**
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* GPIO read and write
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**/
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#define DEV_Digital_Write(_pin, _value) SYSFS_GPIO_Write(_pin, _value)
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#define DEV_Digital_Read(_pin) SYSFS_GPIO_Read(_pin)
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/*------------------------------------------------------------------------------------------------------*/
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UBYTE DEV_Module_Init(void);
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void DEV_Module_Exit(void);
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void DEV_Delay_us(UWORD xus);
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void DEV_Delay_ms(UWORD xms);
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void DEV_SPI_WriteByte(UBYTE value);
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#endif
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47
Jetson Nano/c/lib/Config/Debug.h
Normal file
47
Jetson Nano/c/lib/Config/Debug.h
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@ -0,0 +1,47 @@
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/*****************************************************************************
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* | File : Debug.h
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* | Author : Waveshare team
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* | Function : debug with printf
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* | Info :
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* Image scanning
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* Please use progressive scanning to generate images or fonts
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*----------------
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* | This version: V2.0
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* | Date : 2018-10-30
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* | Info :
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* 1.USE_DEBUG -> DEBUG, If you need to see the debug information,
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* clear the execution: make DEBUG=-DDEBUG
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furished to do so, subject to the following conditions:
|
||||
#
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||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
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||||
#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#ifndef __DEBUG_H
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#define __DEBUG_H
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#include <stdio.h>
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#if DEBUG
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#define Debug(__info,...) printf("Debug: " __info,##__VA_ARGS__)
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#else
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#define Debug(__info,...)
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#endif
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#endif
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152
Jetson Nano/c/lib/Config/sysfs_gpio.c
Normal file
152
Jetson Nano/c/lib/Config/sysfs_gpio.c
Normal file
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@ -0,0 +1,152 @@
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/*****************************************************************************
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* | File : SYSFS_GPIO.c
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* | Author : Waveshare team
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* | Function : Drive SYSFS_ GPIO
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* | Info : Read and write /sys/class/gpio
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*----------------
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* | This version: V1.0
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* | Date : 2019-06-04
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* | Info : Basic version
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*
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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||||
# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
|
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furished to do so, subject to the following conditions:
|
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#
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# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
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||||
#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "sysfs_gpio.h"
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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int SYSFS_GPIO_Export(int Pin)
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{
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char buffer[NUM_MAXBUF];
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int len;
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int fd;
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fd = open("/sys/class/gpio/export", O_WRONLY);
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if (fd < 0) {
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SYSFS_GPIO_Debug( "Export Failed: Pin%d\n", Pin);
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return -1;
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}
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len = snprintf(buffer, NUM_MAXBUF, "%d", Pin);
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write(fd, buffer, len);
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SYSFS_GPIO_Debug( "Export: Pin%d\r\n", Pin);
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close(fd);
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return 0;
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}
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int SYSFS_GPIO_Unexport(int Pin)
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{
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char buffer[NUM_MAXBUF];
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int len;
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int fd;
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fd = open("/sys/class/gpio/unexport", O_WRONLY);
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if (fd < 0) {
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SYSFS_GPIO_Debug( "unexport Failed: Pin%d\n", Pin);
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return -1;
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}
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len = snprintf(buffer, NUM_MAXBUF, "%d", Pin);
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write(fd, buffer, len);
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SYSFS_GPIO_Debug( "Unexport: Pin%d\r\n", Pin);
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close(fd);
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return 0;
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}
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int SYSFS_GPIO_Direction(int Pin, int Dir)
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{
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const char dir_str[] = "in\0out";
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char path[DIR_MAXSIZ];
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int fd;
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snprintf(path, DIR_MAXSIZ, "/sys/class/gpio/gpio%d/direction", Pin);
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fd = open(path, O_WRONLY);
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if (fd < 0) {
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SYSFS_GPIO_Debug( "Set Direction failed: Pin%d\n", Pin);
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return -1;
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}
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if (write(fd, &dir_str[Dir == IN ? 0 : 3], Dir == IN ? 2 : 3) < 0) {
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SYSFS_GPIO_Debug("failed to set direction!\r\n");
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return -1;
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}
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if(Dir == IN){
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SYSFS_GPIO_Debug("Pin%d:intput\r\n", Pin);
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}else{
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SYSFS_GPIO_Debug("Pin%d:Output\r\n", Pin);
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}
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close(fd);
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return 0;
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}
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int SYSFS_GPIO_Read(int Pin)
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{
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char path[DIR_MAXSIZ];
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char value_str[3];
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int fd;
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snprintf(path, DIR_MAXSIZ, "/sys/class/gpio/gpio%d/value", Pin);
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fd = open(path, O_RDONLY);
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if (fd < 0) {
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SYSFS_GPIO_Debug( "Read failed Pin%d\n", Pin);
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return -1;
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}
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if (read(fd, value_str, 3) < 0) {
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SYSFS_GPIO_Debug( "failed to read value!\n");
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return -1;
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}
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close(fd);
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return(atoi(value_str));
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}
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int SYSFS_GPIO_Write(int Pin, int value)
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{
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const char s_values_str[] = "01";
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char path[DIR_MAXSIZ];
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int fd;
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snprintf(path, DIR_MAXSIZ, "/sys/class/gpio/gpio%d/value", Pin);
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fd = open(path, O_WRONLY);
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if (fd < 0) {
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SYSFS_GPIO_Debug( "Write failed : Pin%d,value = %d\n", Pin, value);
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return -1;
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}
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if (write(fd, &s_values_str[value == LOW ? 0 : 1], 1) < 0) {
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SYSFS_GPIO_Debug( "failed to write value!\n");
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return -1;
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}
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close(fd);
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return 0;
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}
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84
Jetson Nano/c/lib/Config/sysfs_gpio.h
Normal file
84
Jetson Nano/c/lib/Config/sysfs_gpio.h
Normal file
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@ -0,0 +1,84 @@
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/*****************************************************************************
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* | File : sysfs_gpio.h
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* | Author : Waveshare team
|
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* | Function : Drive SC16IS752 GPIO
|
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* | Info : Read and write /sys/class/gpio
|
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*----------------
|
||||
* | This version: V1.0
|
||||
* | Date : 2019-06-04
|
||||
* | Info : Basic version
|
||||
*
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documnetation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
#
|
||||
******************************************************************************/
|
||||
#ifndef __SYSFS_GPIO_
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#define __SYSFS_GPIO_
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#include <stdio.h>
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#define IN 0
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#define OUT 1
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#define LOW 0
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#define HIGH 1
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#define NUM_MAXBUF 4
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#define DIR_MAXSIZ 60
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#define SYSFS_GPIO_DEBUG 1
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#if SYSFS_GPIO_DEBUG
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#define SYSFS_GPIO_Debug(__info,...) printf("Debug: " __info,##__VA_ARGS__)
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#else
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#define SYSFS_GPIO_Debug(__info,...)
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#endif
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// BCM GPIO for Jetson nano
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#define GPIO4 216 // 7, 4
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#define GPIO17 50 // 11, 17
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#define GPIO18 79 // 12, 18
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#define GPIO27 14 // 13, 27
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#define GPIO22 194 // 15, 22
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#define GPIO23 232 // 16, 23
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#define GPIO24 15 // 18, 24
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#define SPI0_MOSI 16 // 19, 10
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#define SPI0_MISO 17 // 21, 9
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#define GPIO25 13 // 22, 25
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#define SPI0_SCK 18 // 23, 11
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#define SPI0_CS0 19 // 24, 8
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#define SPI0_CS1 20 // 26, 7
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#define GPIO5 149 // 29, 5
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#define GPIO6 200 // 31, 6
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#define GPIO12 168 // 32, 12
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#define GPIO13 38 // 33, 13
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#define GPIO19 76 // 35, 19
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#define GPIO16 51 // 36, 16
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#define GPIO26 12 // 37, 26
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#define GPIO20 77 // 38, 20
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#define GPIO21 78 // 40, 21
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// 22PIN + 2PIN UART0 + 2PIN I2C0 + 2PIN I2C
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// + 2PIN 3V3 + 2PIN 5V + 8PIN GND = 40PIN
|
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|
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int SYSFS_GPIO_Export(int Pin);
|
||||
int SYSFS_GPIO_Unexport(int Pin);
|
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int SYSFS_GPIO_Direction(int Pin, int Dir);
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||||
int SYSFS_GPIO_Read(int Pin);
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int SYSFS_GPIO_Write(int Pin, int value);
|
||||
|
||||
#endif
|
||||
204
Jetson Nano/c/lib/Config/sysfs_software_spi.c
Normal file
204
Jetson Nano/c/lib/Config/sysfs_software_spi.c
Normal file
|
|
@ -0,0 +1,204 @@
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/*****************************************************************************
|
||||
* | File : sysfs_software_spi.h
|
||||
* | Author : Waveshare team
|
||||
* | Function : Read and write /sys/class/gpio, software spi
|
||||
* | Info :
|
||||
*----------------
|
||||
* | This version: V1.0
|
||||
* | Date : 2019-06-05
|
||||
* | Info : Basic version
|
||||
*
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documnetation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# Read_data OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
#
|
||||
******************************************************************************/
|
||||
#include "sysfs_software_spi.h"
|
||||
|
||||
SOFTWARE_SPI software_spi;
|
||||
|
||||
/******************************************************************************
|
||||
function:
|
||||
parameter:
|
||||
Info:
|
||||
******************************************************************************/
|
||||
void SYSFS_software_spi_begin(void)
|
||||
{
|
||||
// gpio
|
||||
software_spi.SCLK_PIN = SPI0_SCK;
|
||||
software_spi.MOSI_PIN = SPI0_MOSI;
|
||||
software_spi.MISO_PIN = SPI0_MISO;
|
||||
|
||||
//software spi configure
|
||||
software_spi.Mode = SOFTWARE_SPI_Mode0;
|
||||
software_spi.Type = SOFTWARE_SPI_Master;
|
||||
software_spi.Delay = SOFTWARE_SPI_CLOCK_DIV2;
|
||||
software_spi.Order = SOFTWARE_SPI_MSBFIRST; // MSBFIRST
|
||||
|
||||
SYSFS_GPIO_Export(software_spi.SCLK_PIN);
|
||||
SYSFS_GPIO_Export(software_spi.MOSI_PIN);
|
||||
SYSFS_GPIO_Export(software_spi.MISO_PIN);
|
||||
|
||||
SYSFS_GPIO_Direction(software_spi.SCLK_PIN, OUT);
|
||||
SYSFS_GPIO_Direction(software_spi.MOSI_PIN, OUT);
|
||||
SYSFS_GPIO_Direction(software_spi.MISO_PIN, IN);
|
||||
}
|
||||
|
||||
void SYSFS_software_spi_end(void)
|
||||
{
|
||||
SYSFS_GPIO_Write(software_spi.SCLK_PIN, LOW);
|
||||
SYSFS_GPIO_Write(software_spi.MOSI_PIN, LOW);
|
||||
|
||||
SYSFS_GPIO_Unexport(software_spi.SCLK_PIN);
|
||||
SYSFS_GPIO_Unexport(software_spi.MOSI_PIN);
|
||||
}
|
||||
|
||||
void SYSFS_software_spi_setBitOrder(uint8_t order)
|
||||
{
|
||||
software_spi.Order = order & 1;
|
||||
}
|
||||
|
||||
void SYSFS_software_spi_setDataMode(uint8_t mode)
|
||||
{
|
||||
if(mode > 4) {
|
||||
SYSFS_SOFTWARE_SPI_Debug("MODE must be 0-3\r\n");
|
||||
return;
|
||||
}
|
||||
software_spi.Mode = mode;
|
||||
|
||||
switch (software_spi.Mode) {
|
||||
case SOFTWARE_SPI_Mode0:
|
||||
software_spi.CPOL = 0;
|
||||
software_spi.CPHA = 0;
|
||||
break;
|
||||
case SOFTWARE_SPI_Mode1:
|
||||
software_spi.CPOL = 0;
|
||||
software_spi.CPHA = 1;
|
||||
break;
|
||||
case SOFTWARE_SPI_Mode2:
|
||||
software_spi.CPOL = 1;
|
||||
software_spi.CPHA = 0;
|
||||
break;
|
||||
case SOFTWARE_SPI_Mode3:
|
||||
software_spi.CPOL = 1;
|
||||
software_spi.CPHA = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void SYSFS_software_spi_setClockDivider(uint8_t div)
|
||||
{
|
||||
if(div > 8) {
|
||||
SYSFS_SOFTWARE_SPI_Debug("div must be 0-7\r\n");
|
||||
return;
|
||||
}
|
||||
switch (div) {
|
||||
case SOFTWARE_SPI_CLOCK_DIV2:
|
||||
software_spi.Delay = 2;
|
||||
break;
|
||||
case SOFTWARE_SPI_CLOCK_DIV4:
|
||||
software_spi.Delay = 4;
|
||||
break;
|
||||
case SOFTWARE_SPI_CLOCK_DIV8:
|
||||
software_spi.Delay = 8;
|
||||
break;
|
||||
case SOFTWARE_SPI_CLOCK_DIV16:
|
||||
software_spi.Delay = 16;
|
||||
break;
|
||||
case SOFTWARE_SPI_CLOCK_DIV32:
|
||||
software_spi.Delay = 32;
|
||||
break;
|
||||
case SOFTWARE_SPI_CLOCK_DIV64:
|
||||
software_spi.Delay = 64;
|
||||
break;
|
||||
case SOFTWARE_SPI_CLOCK_DIV128:
|
||||
software_spi.Delay = 128;
|
||||
break;
|
||||
default:
|
||||
software_spi.Delay = 128;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
function: SPI Mode 0
|
||||
parameter:
|
||||
Info:
|
||||
******************************************************************************/
|
||||
uint8_t SYSFS_software_spi_transfer(uint8_t value)
|
||||
{
|
||||
// printf("value = %d\r\n", value);
|
||||
uint8_t Read_data;
|
||||
if (software_spi.Order == SOFTWARE_SPI_LSBFIRST) {
|
||||
uint8_t temp =
|
||||
((value & 0x01) << 7) |
|
||||
((value & 0x02) << 5) |
|
||||
((value & 0x04) << 3) |
|
||||
((value & 0x08) << 1) |
|
||||
((value & 0x10) >> 1) |
|
||||
((value & 0x20) >> 3) |
|
||||
((value & 0x40) >> 5) |
|
||||
((value & 0x80) >> 7);
|
||||
value = temp;
|
||||
}
|
||||
|
||||
uint8_t delay = software_spi.Delay >> 1;
|
||||
for(int j=delay; j > 0; j--);
|
||||
|
||||
// printf("value = %d\r\n", value);
|
||||
uint8_t Read_miso = 0;
|
||||
|
||||
SYSFS_GPIO_Write(software_spi.SCLK_PIN, 0);
|
||||
for (uint8_t bit = 0; bit < 8; bit++) {
|
||||
SYSFS_GPIO_Write(software_spi.SCLK_PIN, 0);
|
||||
// for(int j=delay; j > 0; j--);// DELAY
|
||||
|
||||
if (software_spi.CPHA) {
|
||||
Read_miso = SYSFS_GPIO_Read(software_spi.MISO_PIN);
|
||||
if (software_spi.Order == SOFTWARE_SPI_LSBFIRST) {
|
||||
Read_data <<= 1;
|
||||
Read_data |= Read_miso;
|
||||
} else {
|
||||
Read_data >>= 1;
|
||||
Read_data |= Read_miso << 7;
|
||||
}
|
||||
} else {
|
||||
SYSFS_GPIO_Write(software_spi.MOSI_PIN, ((value<<bit) & 0x80) ? HIGH : LOW);
|
||||
}
|
||||
|
||||
// for(int j=delay; j > 0; j--);// DELAY
|
||||
SYSFS_GPIO_Write(software_spi.SCLK_PIN, 1);
|
||||
// for(int j=delay; j > 0; j--);// DELAY
|
||||
|
||||
if (software_spi.CPHA) {
|
||||
SYSFS_GPIO_Write(software_spi.MOSI_PIN, ((value<<bit) & 0x80) ? HIGH : LOW);
|
||||
} else {
|
||||
Read_miso = SYSFS_GPIO_Read(software_spi.MISO_PIN);
|
||||
if (software_spi.Order == SOFTWARE_SPI_LSBFIRST) {
|
||||
Read_data <<= 1;
|
||||
Read_data |= Read_miso;
|
||||
} else {
|
||||
Read_data >>= 1;
|
||||
Read_data |= Read_miso << 7;
|
||||
}
|
||||
}
|
||||
|
||||
// for(int j=delay; j > 0; j--);// DELAY
|
||||
}
|
||||
return Read_data;
|
||||
}
|
||||
111
Jetson Nano/c/lib/Config/sysfs_software_spi.h
Normal file
111
Jetson Nano/c/lib/Config/sysfs_software_spi.h
Normal file
|
|
@ -0,0 +1,111 @@
|
|||
/*****************************************************************************
|
||||
* | File : sysfs_software_spi.h
|
||||
* | Author : Waveshare team
|
||||
* | Function : Read and write /sys/class/gpio, software spi
|
||||
* | Info :
|
||||
*----------------
|
||||
* | This version: V1.0
|
||||
* | Date : 2019-06-05
|
||||
* | Info : Basic version
|
||||
*
|
||||
#
|
||||
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
# of this software and associated documnetation files (the "Software"), to deal
|
||||
# in the Software without restriction, including without limitation the rights
|
||||
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
# copies of the Software, and to permit persons to whom the Software is
|
||||
# furished to do so, subject to the following conditions:
|
||||
#
|
||||
# The above copyright notice and this permission notice shall be included in
|
||||
# all copies or substantial portions of the Software.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
# THE SOFTWARE.
|
||||
#
|
||||
******************************************************************************/
|
||||
#ifndef __SYSFS_SOFTWARE_SPI_
|
||||
#define __SYSFS_SOFTWARE_SPI_
|
||||
|
||||
#include "sysfs_gpio.h"
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#define SYSFS_SOFTWARE_SPI_DEBUG 1
|
||||
#if SYSFS_SOFTWARE_SPI_DEBUG
|
||||
#define SYSFS_SOFTWARE_SPI_Debug(__info,...) printf("Debug: " __info,##__VA_ARGS__)
|
||||
#else
|
||||
#define SYSFS_SOFTWARE_SPI_Debug(__info,...)
|
||||
#endif
|
||||
|
||||
/**
|
||||
* SPI communication mode
|
||||
**/
|
||||
typedef enum {
|
||||
SOFTWARE_SPI_Mode0, /* Clock Polarity is 0 and Clock Phase is 0 */
|
||||
SOFTWARE_SPI_Mode1, /* Clock Polarity is 0 and Clock Phase is 1 */
|
||||
SOFTWARE_SPI_Mode2, /* Clock Polarity is 1 and Clock Phase is 0 */
|
||||
SOFTWARE_SPI_Mode3, /* Clock Polarity is 1 and Clock Phase is 1 */
|
||||
} SOFTWARE_SPI_Mode;
|
||||
|
||||
/**
|
||||
* SPI clock(div)
|
||||
**/
|
||||
typedef enum {
|
||||
SOFTWARE_SPI_CLOCK_DIV2,
|
||||
SOFTWARE_SPI_CLOCK_DIV4,
|
||||
SOFTWARE_SPI_CLOCK_DIV8,
|
||||
SOFTWARE_SPI_CLOCK_DIV16,
|
||||
SOFTWARE_SPI_CLOCK_DIV32,
|
||||
SOFTWARE_SPI_CLOCK_DIV64,
|
||||
SOFTWARE_SPI_CLOCK_DIV128,
|
||||
} SOFTWARE_SPI_Clock;
|
||||
|
||||
/**
|
||||
* Define SPI type
|
||||
**/
|
||||
typedef enum {
|
||||
SOFTWARE_SPI_Master,
|
||||
SOFTWARE_SPI_Slave,
|
||||
} SOFTWARE_SPI_Type;
|
||||
|
||||
/**
|
||||
* Define SPI order
|
||||
**/
|
||||
typedef enum {
|
||||
SOFTWARE_SPI_LSBFIRST,
|
||||
SOFTWARE_SPI_MSBFIRST,
|
||||
} SOFTWARE_SPI_Order;
|
||||
|
||||
/**
|
||||
* Define SPI attribute
|
||||
**/
|
||||
typedef struct SPIStruct {
|
||||
//GPIO
|
||||
uint16_t SCLK_PIN;
|
||||
uint16_t MOSI_PIN;
|
||||
uint16_t MISO_PIN;
|
||||
uint16_t CS_PIN;
|
||||
|
||||
//Mode
|
||||
SOFTWARE_SPI_Mode Mode;
|
||||
uint8_t CPOL;
|
||||
uint8_t CPHA;
|
||||
|
||||
SOFTWARE_SPI_Clock Delay;
|
||||
SOFTWARE_SPI_Type Type;
|
||||
SOFTWARE_SPI_Order Order;
|
||||
} SOFTWARE_SPI;
|
||||
|
||||
void SYSFS_software_spi_begin(void);
|
||||
void SYSFS_software_spi_end(void);
|
||||
void SYSFS_software_spi_setBitOrder(uint8_t order);
|
||||
void SYSFS_software_spi_setDataMode(uint8_t mode);
|
||||
void SYSFS_software_spi_setClockDivider(uint8_t div);
|
||||
uint8_t SYSFS_software_spi_transfer(uint8_t value);
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue