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FRAM 2 click
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Author: MikroElektronika Team
Last Updated: 2018-03-13
Category: Storage
Downloaded: 476 times
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FRAM 2 click carries the CY15B104Q 4-Mbit (512K x 8 serial F-RAM. A ferroelectric random-access memory or F-RAM is non-volatile and performs reads and writes similar to a RAM. The memory is accessed using an industry-standard serial peripheral interface (SPI) bus.
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Library Description
Key functions:
- void fram_write(uint32_t address, uint8_t *buffer, uint16_t counter) - The function writes to sequential memory locations from the buffer.
- void fram_read(uint32_t address, uint8_t *buffer, uint16_t count) - The function reads sequential memory locations to the buffer.
- void fram_writeEnable() - The function enables data writing in the FRAM memory space.
Examples Description
The application is composed of three sections:
- System Initialization - GPIO and SPI module Initialization.
- Application Initialization - Fram 2 Driver Initialization, initialization of click by setting mikorBUS pins to an appropriate logic level, performing erase all and write enable functions.
- Application Task - Writing data to click memory and displaying the read data via UART.
void applicationTask()
{
mikrobus_logWrite("Writing MikroE to Fram memory, from address 0x015015:",
_LOG_LINE);
fram2_write (0x015015, &wrData[0], 9);
mikrobus_logWrite("Reading 9 bytes of Fram memory, from address 0x015015:",
_LOG_LINE);
fram2_read(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:
- UART
- SPI
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.