150 lines
4.3 KiB
C
150 lines
4.3 KiB
C
/*****************************************************************************
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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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* Used to shield the underlying layers of each master
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* and enhance portability
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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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# ******************************************************************************
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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
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# 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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#include "stm32f1xx_hal_spi.h"
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extern SPI_HandleTypeDef hspi1;
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void DEV_SPI_WriteByte(UBYTE value)
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{
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HAL_SPI_Transmit(&hspi1, &value, 1, 1000);
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}
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void DEV_SPI_Write_nByte(UBYTE *value, UDOUBLE len)
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{
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HAL_SPI_Transmit(&hspi1, value, len, 1000);
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}
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void DEV_GPIO_Mode(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin, UWORD Mode)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(Mode == 0) {
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GPIO_InitStruct.Pin = GPIO_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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} else {
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GPIO_InitStruct.Pin = GPIO_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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// Debug (" %d OUT \r\n",Pin);
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}
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}
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void DEV_GPIO_Init()
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{
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HAL_SPI_MspDeInit(&hspi1);
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//HAL_SPI_DeInit(&hspi1);
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// __HAL_RCC_SPI1_CLK_DISABLE();
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// HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_7);
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}
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void DEV_SPI_Init()
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{
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HAL_SPI_MspInit(&hspi1);
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//HAL_SPI_DeInit(&hspi1);
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// __HAL_RCC_SPI1_CLK_DISABLE();
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// HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_7);
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}
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void DEV_SPI_SendData(UBYTE Reg)
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{
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UBYTE i,j=Reg;
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DEV_GPIO_Mode(EPD_MOSI_PIN, 1);
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DEV_GPIO_Mode(EPD_SCLK_PIN, 1);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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for(i = 0; i<8; i++)
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{
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DEV_Digital_Write(EPD_SCLK_PIN, 0);
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if (j & 0x80)
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{
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DEV_Digital_Write(EPD_MOSI_PIN, 1);
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}
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else
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{
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DEV_Digital_Write(EPD_MOSI_PIN, 0);
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}
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DEV_Digital_Write(EPD_SCLK_PIN, 1);
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j = j << 1;
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}
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DEV_Digital_Write(EPD_SCLK_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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}
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UBYTE DEV_SPI_ReadData()
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{
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UBYTE i,j=0xff;
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DEV_GPIO_Mode(EPD_MOSI_PIN, 0);
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DEV_GPIO_Mode(EPD_SCLK_PIN, 1);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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for(i = 0; i<8; i++)
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{
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DEV_Digital_Write(EPD_SCLK_PIN, 0);
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j = j << 1;
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if (DEV_Digital_Read(EPD_MOSI_PIN))
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{
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j = j | 0x01;
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}
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else
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{
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j= j & 0xfe;
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}
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DEV_Digital_Write(EPD_SCLK_PIN, 1);
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}
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DEV_Digital_Write(EPD_SCLK_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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return j;
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}
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int DEV_Module_Init(void)
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{
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DEV_Digital_Write(EPD_DC_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_Digital_Write(EPD_PWR_PIN, 1);
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DEV_Digital_Write(EPD_RST_PIN, 1);
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return 0;
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}
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void DEV_Module_Exit(void)
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{
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DEV_Digital_Write(EPD_DC_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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//close 5V
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DEV_Digital_Write(EPD_PWR_PIN, 0);
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DEV_Digital_Write(EPD_RST_PIN, 0);
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}
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