w801 spi 讀取數據失敗

測試在板子上進行,無飛線
重新開個sdk測試了下,發現與flashdb無關,與flash讀取有關,以下測試代碼能穩定複現:

/***************************************************************************** 
* 
* File Name : main.c
* 
* Description: main 
* 
* Copyright (c) 2014 Winner Micro Electronic Design Co., Ltd. 
* All rights reserved. 
* 
* Author : dave
* 
* Date : 2014-6-14
*****************************************************************************/ 
#include "wm_include.h"
#include "wm_internal_flash.h"

int master_spi_send_data(int clk, int type);

#define SPI_TT ({\
    if(!spi_testttt()){\
        printf("spi errrr:%s:%d!",__FUNCTION__,__LINE__);\
        while(1);\
    }\
});
extern uint8_t spi_testttt(void);



uint8_t spi_testttt(void){
    uint8_t data = 0,addr = 0x04;
    tls_gpio_write(WM_IO_PB_18,0);
    tls_spi_read_with_cmd(&addr,1,&data,1);
    tls_gpio_write(WM_IO_PB_18,1);
    printf("read:0x%x\n",data);
    return !!data;
}


void UserMain(void)
{
    printf("\n user task \n");

    master_spi_send_data(1000000,2);
    
    uint32_t offset = 0x1e0000 | INSIDE_FLS_BASE_ADDR;
//    uint32_t offset = 0x1e0000;
    uint8_t buf[100] = {0};
    while(1){
        tls_fls_read(offset,buf,32);
        SPI_TT
        vTaskDelay(100);
    }

#if DEMO_CONSOLE
    CreateDemoTask();
#endif
//用戶自己的task
}

int master_spi_send_data(int clk, int type)
{
    int *p;
    int i;

    /*MASTER SPI configuratioin*/
    wm_spi_ck_config(WM_IO_PB_24);
    wm_spi_di_config(WM_IO_PB_25);
    wm_spi_do_config(WM_IO_PB_26);
    tls_gpio_cfg(WM_IO_PB_18,WM_GPIO_DIR_OUTPUT,WM_GPIO_ATTR_PULLHIGH);
    tls_gpio_write(WM_IO_PB_18,1);//cs
    tls_gpio_cfg(WM_IO_PB_17,WM_GPIO_DIR_OUTPUT,WM_GPIO_ATTR_PULLHIGH);
    tls_gpio_write(WM_IO_PB_17,1);//nrst
    printf("\r\n");
    printf("cs--PB04, ck--PB02, di--PB03, do--PB05;\r\n");
    
    if (clk < 0)
    {
        clk = 1000000;          /* default 1M */
    }
    if (-1 == type)
    {
        type = 0;
    }

    if (0 == type)
    {
        tls_spi_trans_type(0);
    }
    else
    {
        tls_spi_trans_type(2);
    }

    tls_spi_setup(TLS_SPI_MODE_0, TLS_SPI_CS_LOW, clk);

    vTaskDelay(1);

    tls_gpio_write(WM_IO_PB_18,0);
    uint8_t data = 0;
    data = 5;
    tls_spi_write((u8 *)&data, 1);
    data = 1;
    tls_spi_write((u8 *)&data, 1);
    tls_gpio_write(WM_IO_PB_18,1);

    vTaskDelay(1);

    data = 4;
    tls_gpio_write(WM_IO_PB_18,0);
    tls_spi_write((u8 *)&data, 1);
    if(tls_spi_read(&data,1) != TLS_SPI_STATUS_OK){
        printf("spi err\n");
    }
    tls_gpio_write(WM_IO_PB_18,1);
    
    printf("spi read:0x%x\n",data);
    return WM_SUCCESS;
}

日志截圖:

邏輯分析儀截圖:

@ggggjh 這兩個並沒有關系，我找了一個spi外接flash的板子，按照這個代碼簡單修改了，測試並沒有出錯。

@abcd 你修改後di的引腳是哪一個?我找了塊沒有外設的801開發板測試,將di初始化為不同io並短到3.3,當我初始化di為PB0,PB16,PB25時會出現讀值由0xff變為0x00的情況,但是初始化為PB03時確實讀出都是0xff正常值沒有0的情況.

@ggggjh 用了PB25也沒錯，試下把wm_main.c裡wm_gpio_config裡spi pin初始化注掉。

@abcd 屏蔽了測試確實沒問題了