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Flash click
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Author: MikroElektronika Team
Last Updated: 2018-03-10
Category: Storage
Downloaded: 5384 times
Followed by: 2 users
The Flash memory module used on this Click board is the EN25Q80B, an 8 Mbit serial Flash memory with 4 KB Uniform Sector, from EON Silicon Solutions. The Flash memory density is usually expressed in bits, so exactly 8,388,608 bits are organized in units (or words, also known as bytes) of 8 bits, which gives 1,048,576 bytes of data memory.
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mikroSDK Library Blog
Key functions:
- uint8_t flash_WriteArray(uint32_t address, uint8_t* pData, uint16_t nCount); - The function writes data to successive addresses.
- void flash_ReadArray(uint32_t address, uint8_t* pData, uint16_t nCount) - The function reads the data to successive addresses.
Examples Description
The application is composed of three sections:
- System Initialization - CS GPIO and SPI module initialization.
- Application Initialization - Flash click driver and click initialization.
- Application Task - (code snippet) - Writing data to click memory and displaying the read data via UART.
void applicationTask()
{
flash_SectorErase(0x015015);
mikrobus_logWrite("Writing MikroE to Flash memory, from address 0x015015:"
,_LOG_LINE);
flash_WriteArray (0x015015, &wrData[0], 9);
mikrobus_logWrite("Reading 9 bytes of Flash memory, from address 0x015015:"
,_LOG_LINE);
flash_ReadArray (0x015015,&rdData[0],9);
mikrobus_logWrite("Data read: ",_LOG_TEXT);
mikrobus_logWrite(rdData,_LOG_LINE);
Delay_ms(1000);
}
Other mikroE Libraries used in the example:
- SPI
- UART
Additional notes and information Depending on the development board you are using, you may need USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.