Mikroelektronika MIKROE-724 データシート

mikroBasic PRO for dsPIC30/33 and PIC24

MikroElektronika

407

‘--- set up USART for the file read

SPI1_Init_Advanced(_SPI_MASTER, _SPI_8_BIT, _SPI_PRESCALE_SEC_1, _SPI_PRESCALE_

PRI_64,

_SPI_SS_DISABLE, _SPI_DATA_SAMPLE_MIDDLE, _SPI_CLK_IDLE_HIGH, _SPI_

ACTIVE_2_IDLE)
UART1_Init(19200) ‘ Initialize UART module at 9600 bps

Delay_ms(100) ‘ Wait for UART module to stabilize
U1MODE.ALTIO = 1 ‘ Switch Rx and Tx pins on their alternate locations.

‘ This is used to free the pins for other module, namely the SPI.

UART_Write_Line(“dsPIC-Started”) ‘ dsPIC present report

‘ use fat16 quick format instead of init routine if a formatting is needed

if Mmc_Fat_Init() = 0 then

‘ reinitialize spi at higher speed

SPI1_Init_Advanced(_SPI_MASTER, _SPI_8_BIT, _SPI_PRESCALE_SEC_1, _SPI_PRESCALE_PRI_4,

_SPI_SS_DISABLE, _SPI_DATA_SAMPLE_MIDDLE, _SPI_CLK_IDLE_HIGH, _SPI_ACTIVE_2_IDLE)

‘--- Test start

UART_Write_Line(“Test Start.”)

M_Create_New_File()

#IFDEF COMPLETE_EXAMPLE

M_Create_Multiple_Files()

M_Open_File_Rewrite()

M_Open_File_Append()

M_Open_File_Read()

M_Delete_File()

M_Test_File_Exist()

M_Create_Swap_File()

#ENDIF

UART_Write_Line(“Test End.”)

else

UART_Write_Line(err_txt) ‘ Note: Cf_Fat_Init tries to initialize a card more than once.

‘ If card is not present, initialization may last longer (depending on clock speed)

end if

end.

HW Connection

Pin diagram of MMC memory card