ATMEGA128 con W25Q32FV

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Estoy intentando guardar algunas cadenas en Winbond Spi Flash con el microcontrolador atmega 128. Hasta ahora soy capaz de obtener ID de manufactura. y guardar la cadena hasta 256 bytes, pero cuando intento leerlo, se pone en blanco. Estoy submitiendo el código para leer y escribir. 

void RD_JEDEC_ID(void)
{
    uint8_t manuf;
    uint16_t id;//total sector linearly from 0 to 4194303.
    CSF_EN;
    spi_transfer(R_JEDEC_ID);
    manuf=spi_transfer(0x00);
    id = spi_transfer(0x00) << 8;
    id |= spi_transfer(0x00);
    CSF_DS;
    if (manuf==0xEF){ENB_PC();U0TX_SRAM("FLASH : WINBOND ");}
    else if (manuf==0x37){ENB_PC();U0TX_SRAM("FLASH : AMIC ");}
    else{ENB_PC();U0TX_SRAM("FLASH : UNIDENTIFIED\r\n");}
    char LNTH[7];itoa(id,LNTH,16);
    ENB_PC();U0TX_SRAM("ID_CAP = ");U0TX_SRAM(&LNTH[0]);U0TX_SRAM("\r\n");
}
uint8_t GT_STSTREG1()
{
    CSF_EN;
    spi_transfer(R_SR1);
    uint8_t sr1 = spi_transfer(0x00);
    CSF_DS;wdt_reset();
    //char LTH[5];itoa(sr1,LTH,16);
    //ENB_PC();U0TX_SRAM("STATUS REG VALUE = ");U0TX_SRAM(&LTH[0]);U0TX_SRAM("\r\n");
    return sr1;
    //BUSSY=sr1 & 0x01;=1
    //WEL= sr1 & 0x02;=2
}
void CHK_BUSSY()
{
    //ENB_PC();U0TX_SRAM("CHECKING BUSSY\r\n");
    uint8_t stat;
    mm : stat= GT_STSTREG1();
    if ((stat & 0x01)!=0)
    {
        goto mm;
    }
}
void Write_EN()
{
    //ENB_PC();U0TX_SRAM("ENABLING WRITE COMMAND\r\n");
    CSF_EN;
    spi_transfer(W_EN);
    CSF_DS;
    uint8_t wel;
    pp : wel= GT_STSTREG1();
    if ((wel & 0x02)!= 2)
    {
        goto pp;
    }   
}
void write_DS()
{
    //ENB_PC();U0TX_SRAM("DISANABLING WRITE COMMAND\r\n");
    CSF_EN;
    spi_transfer(W_DE);
    CSF_DS;
    uint8_t wez;
    vv : wez= GT_STSTREG1();
    if ((wez & 0x01)!= 0)
    {
        goto vv;
    }
}
char RD_FLASH_CHAR(uint32_t addr)
{
    CHK_BUSSY();
    CSF_EN;
    spi_transfer(READ);
    spi_transfer(addr >> 16);
    spi_transfer(addr >> 8);
    spi_transfer(addr);
    unsigned char result = spi_transfer(0x00);
    CSF_DS;
    return result;
}
void WR_FLASH_CHAR(uint32_t addr, char byt)
{
    CHK_BUSSY();Write_EN();
    CSF_EN;
    spi_transfer(PAGE_PGM);
    spi_transfer(addr >> 16);
    spi_transfer(addr >> 8);
    spi_transfer(addr);
    spi_transfer(byt);
    CSF_DS;
    CHK_BUSSY();write_DS();
}
void FLASH_ERASE()
{
    CHK_BUSSY();Write_EN();
    CSF_EN;
    spi_transfer(CHIP_ERASE);
    CSF_DS;
    CHK_BUSSY();write_DS();
    ENB_PC();U0TX_SRAM("EXTERNAL FLASH IS ERASED\r\n");
}
void SECTOR_ERASE(uint32_t addrs)
{
    CHK_BUSSY();Write_EN();
    CSF_EN;
    spi_transfer(SECTOR_E);
    spi_transfer(addrs >> 16);
    spi_transfer(addrs >> 8);
    spi_transfer(addrs);
    CSF_DS;
    CHK_BUSSY();write_DS();
    ENB_PC();U0TX_SRAM("4KB SECTOR ERASED\r\n");
}
int WR_FLASH_DATA(uint32_t addres,unsigned char *buff)
{
    //ENB_PC();U0TX_SRAM("WRITING FLASH DATA\r\n");
    int adcnt=0;
    char k=*buff; k=*buff++;
    while (k!='
void RD_JEDEC_ID(void)
{
    uint8_t manuf;
    uint16_t id;//total sector linearly from 0 to 4194303.
    CSF_EN;
    spi_transfer(R_JEDEC_ID);
    manuf=spi_transfer(0x00);
    id = spi_transfer(0x00) << 8;
    id |= spi_transfer(0x00);
    CSF_DS;
    if (manuf==0xEF){ENB_PC();U0TX_SRAM("FLASH : WINBOND ");}
    else if (manuf==0x37){ENB_PC();U0TX_SRAM("FLASH : AMIC ");}
    else{ENB_PC();U0TX_SRAM("FLASH : UNIDENTIFIED\r\n");}
    char LNTH[7];itoa(id,LNTH,16);
    ENB_PC();U0TX_SRAM("ID_CAP = ");U0TX_SRAM(&LNTH[0]);U0TX_SRAM("\r\n");
}
uint8_t GT_STSTREG1()
{
    CSF_EN;
    spi_transfer(R_SR1);
    uint8_t sr1 = spi_transfer(0x00);
    CSF_DS;wdt_reset();
    //char LTH[5];itoa(sr1,LTH,16);
    //ENB_PC();U0TX_SRAM("STATUS REG VALUE = ");U0TX_SRAM(&LTH[0]);U0TX_SRAM("\r\n");
    return sr1;
    //BUSSY=sr1 & 0x01;=1
    //WEL= sr1 & 0x02;=2
}
void CHK_BUSSY()
{
    //ENB_PC();U0TX_SRAM("CHECKING BUSSY\r\n");
    uint8_t stat;
    mm : stat= GT_STSTREG1();
    if ((stat & 0x01)!=0)
    {
        goto mm;
    }
}
void Write_EN()
{
    //ENB_PC();U0TX_SRAM("ENABLING WRITE COMMAND\r\n");
    CSF_EN;
    spi_transfer(W_EN);
    CSF_DS;
    uint8_t wel;
    pp : wel= GT_STSTREG1();
    if ((wel & 0x02)!= 2)
    {
        goto pp;
    }   
}
void write_DS()
{
    //ENB_PC();U0TX_SRAM("DISANABLING WRITE COMMAND\r\n");
    CSF_EN;
    spi_transfer(W_DE);
    CSF_DS;
    uint8_t wez;
    vv : wez= GT_STSTREG1();
    if ((wez & 0x01)!= 0)
    {
        goto vv;
    }
}
char RD_FLASH_CHAR(uint32_t addr)
{
    CHK_BUSSY();
    CSF_EN;
    spi_transfer(READ);
    spi_transfer(addr >> 16);
    spi_transfer(addr >> 8);
    spi_transfer(addr);
    unsigned char result = spi_transfer(0x00);
    CSF_DS;
    return result;
}
void WR_FLASH_CHAR(uint32_t addr, char byt)
{
    CHK_BUSSY();Write_EN();
    CSF_EN;
    spi_transfer(PAGE_PGM);
    spi_transfer(addr >> 16);
    spi_transfer(addr >> 8);
    spi_transfer(addr);
    spi_transfer(byt);
    CSF_DS;
    CHK_BUSSY();write_DS();
}
void FLASH_ERASE()
{
    CHK_BUSSY();Write_EN();
    CSF_EN;
    spi_transfer(CHIP_ERASE);
    CSF_DS;
    CHK_BUSSY();write_DS();
    ENB_PC();U0TX_SRAM("EXTERNAL FLASH IS ERASED\r\n");
}
void SECTOR_ERASE(uint32_t addrs)
{
    CHK_BUSSY();Write_EN();
    CSF_EN;
    spi_transfer(SECTOR_E);
    spi_transfer(addrs >> 16);
    spi_transfer(addrs >> 8);
    spi_transfer(addrs);
    CSF_DS;
    CHK_BUSSY();write_DS();
    ENB_PC();U0TX_SRAM("4KB SECTOR ERASED\r\n");
}
int WR_FLASH_DATA(uint32_t addres,unsigned char *buff)
{
    //ENB_PC();U0TX_SRAM("WRITING FLASH DATA\r\n");
    int adcnt=0;
    char k=*buff; k=*buff++;
    while (k!='%pre%')
    {
        WR_FLASH_CHAR(addres,k);k=*buff++;
        addres++;adcnt++;
    }
    char dlen[3]="%pre%%pre%%pre%";
    itoa(adcnt,dlen,10);
    ENB_PC();U0TX_SRAM("FLASH WRITE COUNT : ");U0TX_SRAM(&dlen[0]);U0TX_SRAM("\r\n");
    //ENB_PC();U0TX_SRAM("WRITING FLASH DATA COMPLETED\r\n");
    return adcnt;
}
void RD_FLASH_DATA(uint32_t addr,int cnt)
{
    ENB_PC();U0TX_SRAM("READING FLASH DATA\r\n");
    unsigned char reslt;
    for (int j=addr;j<=cnt;j++)
    {
        reslt = RD_FLASH_CHAR(addr++);FDATA[j]=reslt;
    }
    ENB_PC();U0TX_SRAM(&FDATA[0]);U0TX_SRAM("\r\n");
}

')
    {
        WR_FLASH_CHAR(addres,k);k=*buff++;
        addres++;adcnt++;
    }
    char dlen[3]="%pre%%pre%%pre%";
    itoa(adcnt,dlen,10);
    ENB_PC();U0TX_SRAM("FLASH WRITE COUNT : ");U0TX_SRAM(&dlen[0]);U0TX_SRAM("\r\n");
    //ENB_PC();U0TX_SRAM("WRITING FLASH DATA COMPLETED\r\n");
    return adcnt;
}
void RD_FLASH_DATA(uint32_t addr,int cnt)
{
    ENB_PC();U0TX_SRAM("READING FLASH DATA\r\n");
    unsigned char reslt;
    for (int j=addr;j<=cnt;j++)
    {
        reslt = RD_FLASH_CHAR(addr++);FDATA[j]=reslt;
    }
    ENB_PC();U0TX_SRAM(&FDATA[0]);U0TX_SRAM("\r\n");
}

¿Puede alguien decirme qué está mal?

    
pregunta SAM.D

0 respuestas

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