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mikroSDK Library

nvSRAM 2 click

Rating:

5

Author: MIKROE

Last Updated: 2021-01-06

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: SRAM

Downloaded: 2646 times

Not followed.

License: MIT license  

nvSRAM 2 Click is a compact add-on board that contains the most reliable nonvolatile memory. This board features the CY14B101Q, a 1Mbit nvSRAM organized as 128K words of 8 bits each with a nonvolatile element in each memory cell from Cypress Semiconductor.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

nvSRAM 2 Click

nvSRAM 2 Click

Native view of the nvSRAM 2 Click board.

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nvSRAM 2 Click

nvSRAM 2 Click

Front and back view of the nvSRAM 2 Click board.

View full image

Library Description

The library covers all the necessary functions to control nvSRAM 2 click board. Library performs a standard SPI interface communication.

Key functions:

  • void nvsram2_set_cmd ( uint8_t cmd ) - Set command function.
  • void nvsram2_burst_write ( uint32_t mem_addr, uint8_t *p_tx_data, uint8_t n_bytes ); - Burst write function.
  • void nvsram2_burst_read ( uint32_t mem_addr, uint8_t *p_rx_data, uint8_t n_bytes ); - Burst read function.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes SPI and UART LOG, sets CS and PWM pins as outputs.
  • Application Initialization - Initialization driver enables SPI, disables hold, sets write enable latch, targets the memory address at 12345 ( 0x00003039 ) for burst write starting point and writes data which is also displayed on the log.
  • Application Task - This is an example that demonstrates the use of the nvSRAM 2 click board. In this example, the data is read from the targeted memory address. The results are being sent to the Usart Terminal. This task repeats every 5 sec.
void application_task ( )
{
    mikrobus_logWrite( "-----------------------", _LOG_LINE );
    mikrobus_logWrite( "", _LOG_LINE );
    mikrobus_logWrite( "<- Read data  : ", _LOG_TEXT );
    nvsram2_burst_read( memory_addr, &rx_data[ 0 ], 9 );
    mikrobus_logWrite( rx_data, _LOG_LINE );
    Delay_ms( 5000 );
}

Other mikroE Libraries used in the example:

  • SPI
  • UART

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB 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.

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