关于SDIO驱动TF卡的疑问

adaphoto

大家好，我用自己的板子做的一个SDIO驱动TF卡，
例程用的是“战舰SDIO测试”移植过来的。
目前只是移植到TF卡的上电检测阶段。
下面是我的代码

大致的意思就是：初始化TF卡，读取卡信息，然后在OLED上显示出来。
手中有两张卡，
一张是Kingston的4G的SDHC TF卡
一张是Panasonic的4G的SDHC TF卡

实验结果是：
Kingston的卡，总是认为SDSC 2.0  容量只有30，显然是错误的
Panasonic的卡，认为SDHC2.0 容量3786，显然是对的

请问是什么原因呢？

补充一下，做单个block 512读写测试的时候，可以识别到的panasonic卡，不稳定，经常会写进去，但是读不出来
。

[mw_shl_code=c,true][/mw_shl_code] [mw_shl_code=c,true]int main(void) { extern u16 OLED_GRAM[132][8]; u8 SDtatus; // u8 i; //MY_NVIC_PriorityGroup_Config(NVIC_PriorityGroup_2); // // SZ_STM32_SysTickInit(1000000); // OLED_Init(); OLED_ShowString(3,02," System Initializing "); OLED_ShowString(3,12," "); OLED_ShowString(3,22," "); OLED_ShowString(3,32," "); OLED_ShowString(3,42," "); OLED_ShowString(3,52," "); OLED_Refresh_Gram(); Delay_ms(200); /****************************************************** SD?¨?????? ******************************************************/ if(SD_Init() != SD_OK) //???????§°? { SDtatus = SD_Init(); OLED_ShowString(3,12,"SD Init Faild! "); OLED_Refresh_Gram(); } else //???????????? { OLED_ShowString(3,12,"SD Init Done! "); OLED_Refresh_Gram();[/mw_shl_code] [mw_shl_code=c,true] SD_Card_Printf_Info(); //?ò???¨???????®?? } while(1) { tmp++; OLED_ShowNum(0,52,tmp,4,12); OLED_Refresh_Gram(); Delay_s(1); //OLED_Display_Off(); } }[/mw_shl_code]

正点原子

http://www.openedv.com/posts/list/12704.htm

adaphoto

这是我修改之后的main函数，增加了SD擦除和SD写和SD读
但是很多次都是读不出来，为什么呢？

[mw_shl_code=c,true]int main(void) { extern u16 OLED_GRAM[132][8]; //u8 i; MY_NVIC_PriorityGroup_Config(NVIC_PriorityGroup_2); //?è??????·?×é //????Systick?¨?±?÷??1us???????? SZ_STM32_SysTickInit(1000000); //??????OLED OLED_Init(); OLED_ShowString(3,02," System Initializing "); OLED_ShowString(3,12," "); OLED_ShowString(3,22," "); OLED_ShowString(3,32," "); OLED_ShowString(3,42," "); OLED_ShowString(3,52," "); OLED_Refresh_Gram(); Delay_ms(200); /****************************************************** SD?¨?????? ******************************************************/ if(SD_Init() != SD_OK) //???????§°? { SDtatus = SD_Init(); OLED_ShowString(3,12,"SD Init Faild! "); OLED_Refresh_Gram(); //LCD_Display_String_BK(30, 112, "SD Init Faild!", 16, RED, WHITH); //printf("The Faild is:%d\r\n", SDtatus); } else //???????????? { OLED_ShowString(3,12,"SD Init Done! "); OLED_Refresh_Gram(); SD_Card_Printf_Info(); //?ò???¨???????®?? } //////////////////////// //SD ERASE TEST //////////////////////// if (SDtatus == 0) { /* Erase NumberOfBlocks Blocks of WRITE_BL_LEN(512 Bytes) */ SDtatus = SD_Erase(0x00, (BLOCK_SIZE * NUMBER_OF_BLOCKS)); if (SDtatus == 0) { OLED_ShowChar(63,32,'R',12,0); } } // if (SDtatus == 0) // { // SDtatus = SD_ReadMultiBlocks(Buffer_MultiBlock_Rx, 0x00, BLOCK_SIZE, NUMBER_OF_BLOCKS); // /* Check if the Transfer is finished */ // SDtatus = SD_WaitReadOperation(); // /* Wait until end of DMA transfer */ // while(SD_GetStatus() != SD_TRANSFER_OK); // } //////////////////////// //SD SINGLE WRITE TEST //////////////////////// /* Fill the buffer to send */ Fill_Buffer(Buffer_Block_Tx, BLOCK_SIZE, 0x320F); if (SDtatus == SD_OK) { /* Write block of 512 bytes on address 0 */ SDtatus = SD_WriteBlock(Buffer_Block_Tx, 0x00, BLOCK_SIZE); /* Check if the Transfer is finished */ SDtatus = SD_WaitWriteOperation(); while(SD_GetStatus() != SD_TRANSFER_OK); } OLED_ShowChar(69,32,'W',12,0); Delay_ms(10); if (SDtatus == SD_OK) { /* Read block of 512 bytes from address 0 */ SDtatus = SD_ReadBlock(Buffer_Block_Rx, 0x00, BLOCK_SIZE); /* Check if the Transfer is finished */ SDtatus = SD_WaitReadOperation(); while(SD_GetStatus() != SD_TRANSFER_OK); } OLED_ShowChar(75,32,'R',12,0); while(1) { tmp++; OLED_ShowNum(0,52,tmp,4,12); OLED_Refresh_Gram(); Delay_s(1); //OLED_Display_Off(); } }[/mw_shl_code]

jiushibuzhidao

回复【2楼】adaphoto:
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楼主大哥你战舰的SDIO驱动SD卡的例程在哪儿找的啊？能发一份不

adaphoto

谢谢原子大哥的提示，马上去围观