6572 MCU接口 8位 ssd1297灰色 点不亮，求大家看看

下面是初始化代码
#ifndef BUILD_LK
#include <linux/string.h>
#endif
#ifdef BUILD_LK
#include <platform/mt_GPIO.h>
#include <platform/mt_pMIC.h>
#elif (defined BUILD_UBOOT)
#include <asm/arch/MT6577_gpio.h>
#else
#include <mach/mt_gpio.h>
#include <mach/mt_pm_ldo.h>
#endif
#include "LCM_drv.h"

#define FRAME_WIDTH  (240)
#define FRAME_HEIGHT (320)

static LCM_UTIL_FUNCS lcm_util = {0};
#define SET_RESET_PIN(v)    (lcm_util.set_reset_pin((v)))
#define UDELAY(n) (lcm_util.udelay(n))
#define MDELAY(n) (lcm_util.mdelay(n))
#if 1
static __inline unsigned int LOW_BYTE(unsigned int x)
{
    return (x & 0xFF);
}
static __inline unsigned int HIGH_BYTE(unsigned int x)
{
    return ((x >> 8) & 0xFF);
}
#endif
static __inline void send_ctrl_cmd(unsigned int cmd)
{
    lcm_util.send_cmd(cmd);
}
static __inline void send_data_cmd(unsigned int data)
{
    lcm_util.send_data(data);
}
static __inline unsigned int read_data_cmd(void)
{
    return lcm_util.read_data();
}

static __inline void TFT_WriteReg(unsigned int regIndex,
                                      unsigned int regData)
{
    send_ctrl_cmd(regIndex);
    send_data_cmd(regData);
}


static void init_lcm_registers(void)
{
        
        
        TFT_WriteReg(0xE5, 0x8000);
        TFT_WriteReg(0x28, 0x0006); // enable test command
        TFT_WriteReg(0x07, 0x0021);
        TFT_WriteReg(0x00, 0x0001); // Start internal OSC
     MDELAY(3);
        TFT_WriteReg(0x07, 0x0023);
        TFT_WriteReg(0x10, 0x0000); // Sleep mode off
     MDELAY(3);
        TFT_WriteReg(0x07, 0x0033); // Display on
        TFT_WriteReg(0x01, 0x2b3f); // Driver output control   
        TFT_WriteReg(0x02, 0x0600); // Set to line inversion
        TFT_WriteReg(0x11, 0x6030); // Entry mode setup
        TFT_WriteReg(0x03, 0xa6a8); // Step-up factor/cycle setting
        TFT_WriteReg(0x0f, 0x0000); // Gate scan position start at G0
        TFT_WriteReg(0x0e, 0x3100); // Set aLTErnating amplitude of VCOM
        TFT_WriteReg(0x1e, 0x009f); // Set VcomH voltage   
        TFT_WriteReg(0x0C, 0x0005); // Adjust VCIX2 output voltage
        TFT_WriteReg(0x0D, 0x0005); // Set amplitude magnification of VLCD63
        TFT_WriteReg(0x0b, 0x5308); // Frame cycle control
        // ----------- Special command ----------
        TFT_WriteReg(0x25, 0xe000); // Frame freq control  
        TFT_WriteReg(0x3f, 0xbb84); // System setting
        TFT_WriteReg(0x27, 0x0567); // Internal Vcomh/Vcoml timing  
        TFT_WriteReg(0X20, 0x316c); // Internal VCOM strength  
        // ----------- Adjust the Gamma Curve ----------
        TFT_WriteReg(0x3a, 0x1000);
        TFT_WriteReg(0x3b, 0x0008);
        TFT_WriteReg(0X30, 0x0007);
        TFT_WriteReg(0x31, 0x0003);
        TFT_WriteReg(0x32, 0x0300);
        TFT_WriteReg(0x33, 0x0101);
        TFT_WriteReg(0x34, 0x0707);
        TFT_WriteReg(0x35, 0x0002);
        TFT_WriteReg(0x36, 0x0503);
        TFT_WriteReg(0x37, 0x0202);
        TFT_WriteReg(0x3a, 0x1000);
        TFT_WriteReg(0x3b, 0x0008);
        //------------------ Set GRAM area ---------------
        TFT_WriteReg(0x44, 0xef00); // Horizontal RAM Address
        TFT_WriteReg(0x45, 0x0000); // Vertical RAM Start Address
        TFT_WriteReg(0x46, 0x013f); // Vertical GRAM end Address
        TFT_WriteReg(0x4e, 0x0000);
        TFT_WriteReg(0x4f, 0x0000);
        TFT_WriteReg(0x48, 0x0000);
        TFT_WriteReg(0x49, 0x013f);
        TFT_WriteReg(0x4a, 0xef00);
        TFT_WriteReg(0x4b, 0x013f);
        TFT_WriteReg(0x44, 0xef00); // Horizontal RAM Address
        TFT_WriteReg(0x45, 0x0000); // Vertical RAM Start Address
        TFT_WriteReg(0x46, 0x013f); // Vertical GRAM end Address
        TFT_WriteReg(0x4e, 0x0000); //X GDDRAM
        TFT_WriteReg(0x4f, 0x0000);  //Y GDDRAM
        send_ctrl_cmd(0x0022); //Write RAM data                  
}

static void lcm_set_util_funcs(const LCM_UTIL_FUNCS *util)
{
    meMCPy(&lcm_util, util, sizeof(LCM_UTIL_FUNCS));
}

static void lcm_get_params(LCM_PARAMS *params)
{
       mEMSet(params, 0, sizeof(LCM_PARAMS));
    params->type   = LCM_TYPE_DBI;
    params->ctrl   = LCM_CTRL_PARALLEL_DBI;
    params->width  = FRAME_WIDTH;
    params->height = FRAME_HEIGHT;
    params->io_select_mode= 1;
    params->dbi.port                    = 0;
//    params->dbi.clock_freq              = LCM_DBI_CLOCK_FREQ_7M;
    params->dbi.data_width              = LCM_DBI_DATA_WIDTH_8BITS;
    params->dbi.data_format.color_order = LCM_COLOR_ORDER_RGB;
    params->dbi.data_format.trans_seq   = LCM_DBI_TRANS_SEQ_LSB_FIRST;
    params->dbi.data_format.padding     = LCM_DBI_PADDING_ON_MSB;
    params->dbi.data_format.format      = LCM_DBI_FORMAT_RGB565;
    params->dbi.data_format.width       = LCM_DBI_DATA_WIDTH_16BITS;
    params->dbi.cpu_write_bits          = LCM_DBI_CPU_WRITE_32_BITS;
//    params->dbi.io_driving_current      = LCM_DRIVING_CURRENT_4MA;

#if 0
        params->dbi.parallel.write_setup    = 1;     
        params->dbi.parallel.write_hold     = 1;     
        params->dbi.parallel.write_wait     = 13;   
        params->dbi.parallel.read_setup     = 7;     
        params->dbi.parallel.read_hold      = 1;     
        params->dbi.parallel.read_latency   = 130;   
        params->dbi.parallel.wait_period    = 1;     
#endif
        params->dbi.parallel.write_setup    = 2;
        params->dbi.parallel.write_hold     = 2;
        params->dbi.parallel.write_wait     = 6;
        params->dbi.parallel.read_setup     = 8;
        params->dbi.parallel.read_hold      = 0;
        params->dbi.parallel.read_latency   = 36;
        params->dbi.parallel.wait_period    = 1;

        params->dbi.te_mode                 = 0;
}
static unsigned int lcm_id(void)
{
        send_ctrl_cmd(0x00);
         #ifdef BUILD_LK
            printf("[ssd1297_mcu] id0=0x%02X\n",read_data_cmd());
            printf("[ssd1297_mcu] id1=0x%02X\n",read_data_cmd());
            printf("[ssd1297_mcu] id2=0x%02X\n",read_data_cmd());
            printf("[ssd1297_mcu] id3=0x%02X\n",read_data_cmd());
         #else
            printk("[ssd1297_mcu] id0=0x%02X\n",read_data_cmd());
            printk("[ssd1297_mcu] id1=0x%02X\n",read_data_cmd());
            printk("[ssd1297_mcu] id2=0x%02X\n",read_data_cmd());
            printk("[ssd1297_mcu] id3=0x%02X\n",read_data_cmd());
         #endif
        
        return 1;
}

static void lcm_init(void)
{
    lcm_util.set_gpio_mode(GPIO59, GPIO_MODE_00);   
    lcm_util.set_gpio_dir(GPIO59, GPIO_DIR_OUT);
    lcm_util.set_gpio_out(GPIO59, GPIO_OUT_ONE);
    MDELAY(10);
    lcm_util.set_gpio_out(GPIO59, GPIO_OUT_ZERO);
    MDELAY(50);
     lcm_util.set_gpio_out(GPIO59, GPIO_OUT_ONE);
    MDELAY(100);
    lcm_id();
#ifdef BUILD_LK
    printf("[ssd1297_mcu] lcm_init\n");
#else
    printk("[ssd1297_mcu] lcm_init\n");
#endif
    init_lcm_registers();
}

static void lcm_suspend(void)
{
        
}

static void lcm_resume(void)
{
        lcm_init();
}

static void lcm_update(unsigned int x, unsigned int y,
                       unsigned int width, unsigned int height)
{
           unsigned int x0 = x;
    unsigned int y0 = y;
    unsigned int x1 = x0 + width - 1;
    unsigned int y1 = y0 + height - 1;

#ifdef BUILD_LK
    printf("[ssd1297_mcu] lcm_update\n");
#else
    printk("[ssd1297_mcu] lcm_update\n");
#endif
}
static unsigned int lcm_compare_id(void)
{
        return 1;
}

LCM_DRIVER ssd1297_mcu_drv =
{
    .name                        = "ssd1297_mcu",
        .set_util_funcs = lcm_set_util_funcs,
        .get_params     = lcm_get_params,
        .init           = lcm_init,
        .suspend        = lcm_suspend,
        .resume         = lcm_resume,
        .update         = lcm_update,
        .compare_id     = lcm_compare_id
};
求帮忙看看

有没有人帮忙看看

谢谢分享，支持！

八位数据线都没有波形

是哪里配置的不对呢

已经点亮了，OK

啥原因呢?

我们第一次没经验也是，走了很多弯路。没波形是因为，dws配置错了。后来是一个参数配置错了  params->dbi.data_format.format      = LCM_DBI_FORMAT_RGB66;