Achieve data storage and access speeds previously thought impossible with the help of MR10Q010 and PIC32MZ2048EFM100
Next-Gen memory marvel
Published Sep 13, 2023
Click board™
MRAM 2 Click
Dev. board
Curiosity PIC32 MZ EF
Compiler
NECTO Studio
MCU
PIC32MZ2048EFM100
Significantly improve your solution by storing more data, enabling faster data access, and consuming less energy than existing electronic memory
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Hardware Overview
How does it work?
MRAM 2 Click is based on the MR10Q010, 1Mb Quad Output High-Speed Serial SPI MRAM memory solution from Everspin Technologies. The MR10Q010 is the ideal memory solution for applications that must quickly store and retrieve data and programs using a small number of pins, low power, and the space-saving 16-pin SOIC package. The four I/O’s in Quad SPI mode allow fast reads and writes, making it an attractive alternative to conventional parallel data bus interfaces in next-generation RAID controllers, server system logs, storage device buffers, and embedded system data and program memory. This Click board™ includes an LDO regulator BH18PB1WHFVCT from Rohm Semiconductor to provide the 1.8 V supply voltage. The LDO cuts power consumption by lowering its current
consumption to approximately 2μA when the application operates in the standby state. During normal-current operation, it will automatically switch to high-speed operating mode. The LDO regulator output provides a needed reference voltage for one side of the TXB0106, a 6-bit bidirectional level shifting and voltage translator with automatic direction sensing from Texas Instruments. The reference voltage for the other side of the level shifter is taken from the 3.3V pin from the mikroBUS™. The MRAM 2 Click communicates with MCU using the standard SPI serial interface that supports SPI Mode 0 and 3 and operates at clock rates up to 104 MHz. It also supports modes like Quad Peripheral Interface (QPI) and Quad SPI organized as 131.072 words of 8 bits. Both read and write operations can occur
randomly in memory without delay between writes. The MR10Q010 uses a Write Protect signal routed to the RST pin on the mikroBUS™ to prevent write operations to the Status Register, while the HOLD signal routed to the INT pin on the mikroBUS™ is used to interrupt a memory operation for another task. When HOLD is low, the current operation is suspended. This Click Board™ is designed to be operated only with a 3.3V logic level. A proper logic voltage level conversion should be performed before the Click board™ is used with MCUs with different logic levels. More information about the MR10Q010 can be found in the attached datasheet. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.
Features overview
Development board
Curiosity PIC32 MZ EF development board is a fully integrated 32-bit development platform featuring the high-performance PIC32MZ EF Series (PIC32MZ2048EFM) that has a 2MB Flash, 512KB RAM, integrated FPU, Crypto accelerator, and excellent connectivity options. It includes an integrated programmer and debugger, requiring no additional hardware. Users can expand
functionality through MIKROE mikroBUS™ Click™ adapter boards, add Ethernet connectivity with the Microchip PHY daughter board, add WiFi connectivity capability using the Microchip expansions boards, and add audio input and output capability with Microchip audio daughter boards. These boards are fully integrated into PIC32’s powerful software framework, MPLAB Harmony,
which provides a flexible and modular interface to application development a rich set of inter-operable software stacks (TCP-IP, USB), and easy-to-use features. The Curiosity PIC32 MZ EF development board offers expansion capabilities making it an excellent choice for a rapid prototyping board in Connectivity, IOT, and general-purpose applications.
Microcontroller Overview
MCU Card / MCU
Architecture
PIC32
MCU Memory (KB)
2048
Silicon Vendor
Microchip
Pin count
100
RAM (Bytes)
524288
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Curiosity PIC32 MZ EF as your development board.
Software Support
Library Description
This library contains API for MRAM 2 Click driver.
Key functions:
mram2_wren- Write Enable functionmram2_read- Read Data Bytes functionmram2_write- Write Data Bytes function
Open Source
Code example
The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.
/*!
* \file
* \brief Mram2 Click example
*
* # Description
* This example demonstrates the use of MRAM 2 Click board.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes the driver, sets the write protect and disables the hold signal.
*
* ## Application Task
* Writes "MikroE" into the first 6 memory locations, and then reads it back
* and displays it to the USB UART approximately every 5 seconds.
*
* \author MikroE Team
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "mram2.h"
// ------------------------------------------------------------------ VARIABLES
static mram2_t mram2;
static log_t logger;
char val_in[ 7 ] = { 'M', 'i', 'k', 'r', 'o', 'E', 0 };
char val_out[ 7 ] = { 0 };
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( void )
{
log_cfg_t log_cfg;
mram2_cfg_t cfg;
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
mram2_cfg_setup( &cfg );
MRAM2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
mram2_init( &mram2, &cfg );
log_printf( &logger, "------------------- \r\n" );
log_printf( &logger, " MRAM 2 Click \r\n" );
log_printf( &logger, "------------------- \r\n" );
mram2_write_protect( &mram2, MRAM2_WP_ENABLE );
mram2_hold( &mram2, MRAM2_HLD_DISABLE );
log_printf( &logger, " Initialized \r\n" );
log_printf( &logger, "------------------- \r\n" );
Delay_ms ( 100 );
}
void application_task ( void )
{
mram2_wren( &mram2 );
log_printf( &logger, "Write enabled!\r\n" );
Delay_ms ( 100 );
log_printf( &logger, "Writing \"%s\" to memory...\r\n", val_in );
mram2_write( &mram2, 0x000000, &val_in[ 0 ], 6 );
Delay_ms ( 100 );
mram2_wrdi ( &mram2 );
log_printf( &logger, "Write disabled!\r\n" );
Delay_ms ( 100 );
mram2_read ( &mram2, 0x000000, &val_out[ 0 ], 6 );
log_printf( &logger, "Read data : %s\r\n", val_out );
log_printf( &logger, "-------------------\r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
}
int main ( void )
{
/* Do not remove this line or clock might not be set correctly. */
#ifdef PREINIT_SUPPORTED
preinit();
#endif
application_init( );
for ( ; ; )
{
application_task( );
}
return 0;
}
// ------------------------------------------------------------------------ END
Additional Support
Resources
Category:MRAM
