60 RTT下K210两路SPI不能同时使用问题，求大神

发布于 2021-02-08 15:16:49 浏览：1481 订阅该版

首先作为RTT的热衷粉丝来讲，真的感谢论坛的支持以及各位开发者老师的支持。**这个问题卡我好几天了，**是在是没有办法解决了，望请大佬帮我解决下。
问题详情：

硬件是sipeed的开发板，问题是这样的，K210开放出来两路独立的SPI，分别是0路和1路，0路spi接的屏幕，1路spi接的rw007，我单独控制其原件是没问题的。但是两者同时使用就发现有问题，问题是rw007 通信没响应还有lcd屏幕无法控制（例如clear color），LCD的驱动是直接裸跑的用的官方的驱动，rw007是用的bsp底下的drv_spi,同样的把rw007换成sd卡还是同样的效果，lcd无法控制。
```c
/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2019-03-18     ZYH          first version
 */

#include <rtthread.h>
#include <rtdevice.h>

#ifdef RT_USING_SPI
#include "drv_spi.h"
#include <drv_io_config.h>
#include <spi.h>
#include <dmac.h>
#include <sysctl.h>
#include <gpiohs.h>
#include <string.h>
#include "utils.h"

#define DRV_SPI_DEVICE(spi_bus)    (struct drv_spi_bus *)(spi_bus)

#define MAX_CLOCK   (40000000UL)

struct drv_spi_bus
{
    struct rt_spi_bus parent;
    spi_device_num_t spi_instance;
    dmac_channel_number_t dma_send_channel;
    dmac_channel_number_t dma_recv_channel;
};

struct drv_cs
{
    int cs_index;
    int cs_pin;
};

static volatile spi_t *const spi_instance[4] =
{
    (volatile spi_t *)SPI0_BASE_ADDR,
    (volatile spi_t *)SPI1_BASE_ADDR,
    (volatile spi_t *)SPI_SLAVE_BASE_ADDR,
    (volatile spi_t *)SPI3_BASE_ADDR
};

static rt_err_t drv_spi_configure(struct rt_spi_device *device,
                                  struct rt_spi_configuration *configuration)
{
    rt_err_t ret = RT_EOK;
    int freq = 0;
    struct drv_spi_bus *bus = DRV_SPI_DEVICE(device->bus);
    struct drv_cs * cs = (struct drv_cs *)device->parent.user_data;
    RT_ASSERT(bus != RT_NULL);

gpiohs_set_drive_mode(cs->cs_pin, GPIO_DM_OUTPUT);
    gpiohs_set_pin(cs->cs_pin, GPIO_PV_HIGH);

#ifdef BSP_USING_SPI1_AS_QSPI
    /* Todo:QSPI*/
#else
    spi_init(bus->spi_instance, configuration->mode & RT_SPI_MODE_3, SPI_FF_STANDARD, configuration->data_width, 0);
#endif
    freq = spi_set_clk_rate(bus->spi_instance, configuration->max_hz > MAX_CLOCK ? MAX_CLOCK : configuration->max_hz);
    rt_kprintf("\nset spi freq %d\n", freq);
    return ret;
}

void __spi_set_tmod(uint8_t spi_num, uint32_t tmod)
{
    RT_ASSERT(spi_num < SPI_DEVICE_MAX);
    volatile spi_t *spi_handle = spi[spi_num];
    uint8_t tmod_offset = 0;
    switch(spi_num)
    {
        case 0:
        case 1:
        case 2:
            tmod_offset = 8;
            break;
        case 3:
        default:
            tmod_offset = 10;
            break;
    }
    set_bit(&spi_handle->ctrlr0, 3 << tmod_offset, tmod << tmod_offset);
}

static rt_uint32_t drv_spi_xfer(struct rt_spi_device *device, struct rt_spi_message *message)
{
    struct drv_spi_bus *bus = DRV_SPI_DEVICE(device->bus);
    struct drv_cs * cs = (struct drv_cs *)device->parent.user_data;
    struct rt_spi_configuration *cfg = &device->config;
    uint32_t * tx_buff = RT_NULL;
    uint32_t * rx_buff = RT_NULL;
    int i;
    rt_ubase_t dummy = 0xFFFFFFFFU;

__spi_set_tmod(bus->spi_instance, SPI_TMOD_TRANS_RECV);

RT_ASSERT(bus != RT_NULL);

if(message->cs_take)
    {
        gpiohs_set_pin(cs->cs_pin, GPIO_PV_LOW);
    }
    if(message->length)
    {
        spi_instance[bus->spi_instance]->dmacr = 0x3;
        spi_instance[bus->spi_instance]->ssienr = 0x01;

sysctl_dma_select(bus->dma_send_channel, SYSCTL_DMA_SELECT_SSI0_TX_REQ + bus->spi_instance * 2);
        sysctl_dma_select(bus->dma_recv_channel, SYSCTL_DMA_SELECT_SSI0_RX_REQ + bus->spi_instance * 2);

if(!message->recv_buf)
        {
            dmac_set_single_mode(bus->dma_recv_channel, (void *)(&spi_instance[bus->spi_instance]->dr[0]), &dummy, DMAC_ADDR_NOCHANGE, DMAC_ADDR_NOCHANGE,
                           DMAC_MSIZE_1, DMAC_TRANS_WIDTH_32, message->length);
        }
        else
        {
            rx_buff = rt_calloc(message->length * 4, 1);
            if(!rx_buff)
            {
                goto transfer_done;
            }
            
            dmac_set_single_mode(bus->dma_recv_channel, (void *)(&spi_instance[bus->spi_instance]->dr[0]), rx_buff, DMAC_ADDR_NOCHANGE, DMAC_ADDR_INCREMENT,
                           DMAC_MSIZE_1, DMAC_TRANS_WIDTH_32, message->length);
        }

if(!message->send_buf)
        {
            dmac_set_single_mode(bus->dma_send_channel, &dummy, (void *)(&spi_instance[bus->spi_instance]->dr[0]), DMAC_ADDR_NOCHANGE, DMAC_ADDR_NOCHANGE,
                           DMAC_MSIZE_4, DMAC_TRANS_WIDTH_32, message->length);
        }
        else
        {
            tx_buff = rt_malloc(message->length * 4);
            if(!tx_buff)
            {
                goto transfer_done;
            }
            for(i = 0; i < message->length; i++)
            {
                tx_buff[i] = ((uint8_t *)message->send_buf)[i];
            }
            dmac_set_single_mode(bus->dma_send_channel, tx_buff, (void *)(&spi_instance[bus->spi_instance]->dr[0]), DMAC_ADDR_INCREMENT, DMAC_ADDR_NOCHANGE,
                           DMAC_MSIZE_4, DMAC_TRANS_WIDTH_32, message->length);
        }
        
        spi_instance[bus->spi_instance]->ser = 1U << cs->cs_index;
        dmac_wait_done(bus->dma_send_channel);
        dmac_wait_done(bus->dma_recv_channel);
        spi_instance[bus->spi_instance]->ser = 0x00;
        spi_instance[bus->spi_instance]->ssienr = 0x00;

if(message->recv_buf)
        {
            for(i = 0; i < message->length; i++)
            {
                ((uint8_t *)message->recv_buf)[i] = (uint8_t)rx_buff[i];
            }
        }

transfer_done:
        if(tx_buff)
        {
            rt_free(tx_buff);
        }
        if(rx_buff)
        {
            rt_free(rx_buff);
        }
    }

if(message->cs_release)
    {
        gpiohs_set_pin(cs->cs_pin, GPIO_PV_HIGH);
    }

return message->length;
}

const static struct rt_spi_ops drv_spi_ops =
{
    drv_spi_configure,
    drv_spi_xfer
};

int rt_hw_spi_init(void)
{
    rt_err_t ret = RT_EOK;
    
#ifdef BSP_USING_SPI1
    {
        static struct drv_spi_bus spi_bus1;
        spi_bus1.spi_instance = SPI_DEVICE_1;
        spi_bus1.dma_send_channel = DMAC_CHANNEL1;
        spi_bus1.dma_recv_channel = DMAC_CHANNEL2;
        ret = rt_spi_bus_register(&spi_bus1.parent, "spi1", &drv_spi_ops);

#ifdef BSP_SPI1_USING_SS0
        {
            static struct rt_spi_device spi_device10;
            static struct drv_cs cs10 = 
            {
                .cs_index = SPI_CHIP_SELECT_0,
                .cs_pin = SPI1_CS0_PIN
            };
            
            rt_spi_bus_attach_device(&spi_device10, "spi10", "spi1", (void *)&cs10);
        }
#endif

#ifdef BSP_SPI1_USING_SS1
        {
            static struct rt_spi_device spi_device11;
            static struct drv_cs cs11 = 
            {
                .cs_index = SPI_CHIP_SELECT_1,
                .cs_pin = SPI1_CS1_PIN
            };
            rt_spi_bus_attach_device(&spi_device11, "spi11", "spi1", (void *)&cs11);
        }
#endif

#ifdef BSP_SPI1_USING_SS2
        {
            static struct rt_spi_device spi_device12;
            static struct drv_cs cs12 = 
            {
                .cs_index = SPI_CHIP_SELECT_2,
                .cs_pin = SPI1_CS2_PIN
            };
            rt_spi_bus_attach_device(&spi_device12, "spi12", "spi1", (void *)&cs12);
        }
#endif

#ifdef BSP_SPI1_USING_SS3
        {
            static struct rt_spi_device spi_device13;
            static struct drv_cs cs13 = 
            {
                .cs_index = SPI_CHIP_SELECT_2,
                .cs_pin = SPI1_CS2_PIN
            };
            rt_spi_bus_attach_device(&spi_device13, "spi13", "spi1", (void *)&cs13);
        }
#endif
    }
#endif
    return ret;
}
INIT_DEVICE_EXPORT(rt_hw_spi_init);
#endif

```

```c
/* Copyright 2018 Canaan Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <rtthread.h>

#ifdef BSP_USING_LCD
#include <drv_lcd.h>
#include <gpiohs.h>
#include <spi.h>
#include <unistd.h>
#include <string.h>
#include <fpioa.h>
#define DBG_TAG  "LCD"
#define DBG_LVL  DBG_LOG
#include <rtdbg.h>

static lcd_ctl_t lcd_ctl;

static void  init_dcx(void)
{
    gpiohs_set_drive_mode(DCX_GPIONUM, GPIO_DM_OUTPUT);
    gpiohs_set_pin(DCX_GPIONUM, GPIO_PV_HIGH);
}

static void set_dcx_control(void)
{
    gpiohs_set_pin(DCX_GPIONUM, GPIO_PV_LOW);
}

static void set_dcx_data(void)
{
    gpiohs_set_pin(DCX_GPIONUM, GPIO_PV_HIGH);
}

static void init_rst(void)
{
    gpiohs_set_drive_mode(RST_GPIONUM, GPIO_DM_OUTPUT);
    gpiohs_set_pin(RST_GPIONUM, GPIO_PV_LOW);
    usleep(100000);
    gpiohs_set_pin(RST_GPIONUM, GPIO_PV_HIGH);
    usleep(100000);
}

void tft_hard_init(void)
{
    init_dcx();
    spi_init(SPI_CHANNEL, SPI_WORK_MODE_0, SPI_FF_OCTAL, 8, 0);
    init_rst();
    spi_set_clk_rate(SPI_CHANNEL, 20000000);
}

void tft_write_command(uint8_t cmd)
{
    set_dcx_control();
    spi_init(SPI_CHANNEL, SPI_WORK_MODE_0, SPI_FF_OCTAL, 8, 0);
    spi_init_non_standard(SPI_CHANNEL, 8/*instrction length*/, 0/*address length*/, 0/*wait cycles*/,
                          SPI_AITM_AS_FRAME_FORMAT/*spi address trans mode*/);
    spi_send_data_normal_dma(DMAC_CHANNEL0, SPI_CHANNEL, SPI_SLAVE_SELECT, (uint8_t *)(&cmd), 1,SPI_TRANS_CHAR);
}

void tft_write_byte(uint8_t *data_buf, uint32_t length)
{
    set_dcx_data();
    spi_init(SPI_CHANNEL, SPI_WORK_MODE_0, SPI_FF_OCTAL, 8, 0);
    spi_init_non_standard(SPI_CHANNEL, 8/*instrction length*/, 0/*address length*/, 0/*wait cycles*/,
                          SPI_AITM_AS_FRAME_FORMAT/*spi address trans mode*/);
    spi_send_data_normal_dma(DMAC_CHANNEL0, SPI_CHANNEL, SPI_SLAVE_SELECT, data_buf, length, SPI_TRANS_CHAR);
}

void tft_write_half(uint16_t *data_buf, uint32_t length)
{
    set_dcx_data();
    spi_init(SPI_CHANNEL, SPI_WORK_MODE_0, SPI_FF_OCTAL, 16, 0);
    spi_init_non_standard(SPI_CHANNEL, 16/*instrction length*/, 0/*address length*/, 0/*wait cycles*/,
                          SPI_AITM_AS_FRAME_FORMAT/*spi address trans mode*/);
    spi_send_data_normal_dma(DMAC_CHANNEL0, SPI_CHANNEL, SPI_SLAVE_SELECT,data_buf, length, SPI_TRANS_SHORT);
}

void tft_write_word(uint32_t *data_buf, uint32_t length, uint32_t flag)
{
    set_dcx_data();
    spi_init(SPI_CHANNEL, SPI_WORK_MODE_0, SPI_FF_OCTAL, 32, 0);

spi_init_non_standard(SPI_CHANNEL, 0/*instrction length*/, 32/*address length*/, 0/*wait cycles*/,
                          SPI_AITM_AS_FRAME_FORMAT/*spi address trans mode*/);
    spi_send_data_normal_dma(DMAC_CHANNEL0, SPI_CHANNEL, SPI_SLAVE_SELECT,data_buf, length, SPI_TRANS_INT);
}

void tft_fill_data(uint32_t *data_buf, uint32_t length)
{
    set_dcx_data();
    spi_init(SPI_CHANNEL, SPI_WORK_MODE_0, SPI_FF_OCTAL, 32, 0);
    spi_init_non_standard(SPI_CHANNEL, 0/*instrction length*/, 32/*address length*/, 0/*wait cycles*/,
                          SPI_AITM_AS_FRAME_FORMAT/*spi address trans mode*/);
    spi_fill_data_dma(DMAC_CHANNEL0, SPI_CHANNEL, SPI_SLAVE_SELECT,data_buf, length);
}

void lcd_polling_enable(void)
{
    lcd_ctl.mode = 0;
}

void lcd_interrupt_enable(void)
{
    lcd_ctl.mode = 1;
}

int lcd_init(void)
{

uint8_t data = 0;
    tft_hard_init();
    /*soft reset*/
    tft_write_command(SOFTWARE_RESET);
    usleep(100000);
    /*exit sleep*/
    tft_write_command(SLEEP_OFF);
    usleep(100000);
    /*pixel format*/
    tft_write_command(PIXEL_FORMAT_SET);
    data = 0x55;
    tft_write_byte(&data, 1);
    /*display on*/
    tft_write_command(DISPALY_ON);
    lcd_polling_enable();
    lcd_clear(PINK); 
    lcd_set_direction(DIR_YX_RLDU);
    LOG_I("LCD initialization successfully");
}
INIT_APP_EXPORT(lcd_init);

void lcd_set_direction(lcd_dir_t dir)
{
    lcd_ctl.dir = dir;
    if (dir & DIR_XY_MASK)
    {
        lcd_ctl.width = LCD_Y_MAX - 1;
        lcd_ctl.height = LCD_X_MAX - 1;
    }
    else
    {
        lcd_ctl.width = LCD_X_MAX - 1;
        lcd_ctl.height = LCD_Y_MAX - 1;
    }

tft_write_command(MEMORY_ACCESS_CTL);
    tft_write_byte((uint8_t *)&dir, 1);
}

void lcd_set_area(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
{
    uint8_t data[4] = {0};

data[0] = (uint8_t)(x1 >> 8);
    data[1] = (uint8_t)(x1);
    data[2] = (uint8_t)(x2 >> 8);
    data[3] = (uint8_t)(x2);
    tft_write_command(HORIZONTAL_ADDRESS_SET);
    tft_write_byte(data, 4);

data[0] = (uint8_t)(y1 >> 8);
    data[1] = (uint8_t)(y1);
    data[2] = (uint8_t)(y2 >> 8);
    data[3] = (uint8_t)(y2);
    tft_write_command(VERTICAL_ADDRESS_SET);
    tft_write_byte(data, 4);

tft_write_command(MEMORY_WRITE);
}

void lcd_draw_point(uint16_t x, uint16_t y, uint16_t color)
{
    lcd_set_area(x, y, x, y);
    tft_write_half(&color, 1);
}

void lcd_draw_char(uint16_t x, uint16_t y, char c, uint16_t color)
{
    uint8_t i = 0;
    uint8_t j = 0;
    uint8_t data = 0;

for (i = 0; i < 16; i++)
    {
        data = ascii0816[c * 16 + i];
        for (j = 0; j < 8; j++)
        {
            if (data & 0x80)
                lcd_draw_point(x + j, y, color);
            data <<= 1;
        }
        y++;
    }
}

void lcd_draw_string(uint16_t x, uint16_t y, char *str, uint16_t color)
{
    while (*str)
    {
        lcd_draw_char(x, y, *str, color);
        str++;
        x += 8;
    }
}

void lcd_ram_draw_string(char *str, uint32_t *ptr, uint16_t font_color, uint16_t bg_color)
{
    uint8_t i = 0;
    uint8_t j = 0;
    uint8_t data = 0;
    uint8_t *pdata = NULL;
    uint16_t width = 0;
    uint32_t *pixel = NULL;

width = 4 * strlen(str);
    while (*str)
    {
        pdata = (uint8_t *)&ascii0816[(*str) * 16];
        for (i = 0; i < 16; i++)
        {
            data = *pdata++;
            pixel = ptr + i * width;
            for (j = 0; j < 4; j++)
            {
                switch (data >> 6)
                {
                    case 0:
                        *pixel = ((uint32_t)bg_color << 16) | bg_color;
                        break;
                    case 1:
                        *pixel = ((uint32_t)bg_color << 16) | font_color;
                        break;
                    case 2:
                        *pixel = ((uint32_t)font_color << 16) | bg_color;
                        break;
                    case 3:
                        *pixel = ((uint32_t)font_color << 16) | font_color;
                        break;
                    default:
                        *pixel = 0;
                        break;
                }
                data <<= 2;
                pixel++;
            }
        }
        str++;
        ptr += 4;
    }
}

void lcd_clear(uint16_t color)
{
    uint32_t data = ((uint32_t)color << 16) | (uint32_t)color;

lcd_set_area(0, 0, lcd_ctl.width, lcd_ctl.height);
    tft_fill_data(&data, LCD_X_MAX * LCD_Y_MAX / 2);
}

void lcd_draw_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t width, uint16_t color)
{
    uint32_t data_buf[640] = {0};
    uint32_t *p = data_buf;
    uint32_t data = color;
    uint32_t index = 0;

data = (data << 16) | data;
    for (index = 0; index < 160 * width; index++)
        *p++ = data;

lcd_set_area(x1, y1, x2, y1 + width - 1);
    tft_write_word(data_buf, ((x2 - x1 + 1) * width + 1) / 2, 0);
    lcd_set_area(x1, y2 - width + 1, x2, y2);
    tft_write_word(data_buf, ((x2 - x1 + 1) * width + 1) / 2, 0);
    lcd_set_area(x1, y1, x1 + width - 1, y2);
    tft_write_word(data_buf, ((y2 - y1 + 1) * width + 1) / 2, 0);
    lcd_set_area(x2 - width + 1, y1, x2, y2);
    tft_write_word(data_buf, ((y2 - y1 + 1) * width + 1) / 2, 0);
}

void lcd_draw_picture(uint16_t x1, uint16_t y1, uint16_t width, uint16_t height, uint32_t *ptr)
{
    lcd_set_area(x1, y1, x1 + width - 1, y1 + height - 1);
    tft_write_word(ptr, width * height / 2, lcd_ctl.mode ? 2 : 0);
}
void lcd_pre()
{
    fpioa_set_function(38, FUNC_GPIOHS0 + DCX_GPIONUM);
    fpioa_set_function(36, FUNC_SPI0_SS3);
    fpioa_set_function(39, FUNC_SPI0_SCLK);
    fpioa_set_function(37, FUNC_GPIOHS0 + RST_GPIONUM);

}

void lcd_test0()
{
   
    char test[]={"xuos-intelligence framwork"};
    lcd_draw_string(0,0,test,BLUE);

}
MSH_CMD_EXPORT(lcd_test0,lcd show string);

void lcd_test1()
{
    lcd_clear(YELLOW); 
}
MSH_CMD_EXPORT(lcd_test1,lcd_clear(YELLOW));

#endif
```