Cypress Semiconductor CY8C21534 Especificaciones descargar pdf (Pagina 57)

Appendix 2

7(15)

write_data_init(0x00, 0x04, 0x00, 0x00); // Writes raw data

start_token(); // Address sector 512, offset 40000

Counter8_WritePeriod(0x02); // Sets period to 2 clocks

Counter8_WriteCompareValue(0x01); // Generates a 50% duty cycle

UART_CPutString("S"); // Sends 'S' to show ready for raw data

while(UART_cGetChar() == 0x00); // Waits for raw data to start coming

write_data_raw(UART_bReadRxData());

for(i=0;i<511;i++) // Writes first sector of raw data

{ // Previous line read the 512th byte

while((UART_bReadRxStatus() & 0x08) != 0x08);

write_data_raw(UART_cGetChar());

}

write_CRC();

for(j=0;j<(sectors-

1);j++)

{

start_token();

for(i=0;i<512;i++

)

{

// Writes additional sectors

while((UART_bReadRxStatus() & 0x08) != 0x08);

write_data_raw(UART_cGetChar());

}

write_CRC();

}

start_token();

// Writes remaining raw bytes after all complete sectors

for(i=0;i<(file_size_partial - 1);i++)

{

while((UART_bReadRxStatus() & 0x08) != 0x08);

write_data_raw(UART_cGetChar());

}

// Fill remaining empty space in sector after partial write

write_data_fill(file_size_partial - 1);

write_CRC();

stop_token();

Counter8_WritePeriod(0x30); // Sets period to 10 clocks

Counter8_WriteCompareValue(0x15); // Generates a 50% duty cycle

k = 0;

Loading_LED_Switch(0); // Turns off LED

Write_enable_Switch(0); // Disables write

WiFly_pwr_Switch(0); // Turns off WiFly

MCU_fin_sig_Switch(1); // Signals finish to Control MCU

}

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