Process data swiftly thanks to the ANV32AA1WDK66 and PIC32MZ1024EFH064, no matter the task
Unlock unprecedented speed with our SRAM solution
Published Oct 26, 2023
Click board™
SRAM 3 Click
Dev Board
PIC32MZ clicker
Compiler
NECTO Studio
MCU
PIC32MZ1024EFH064
With our SRAM memory, you can trust in data integrity and fast access for critical operations
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Hardware Overview
How does it work?
SRAM 3 Click is based on the ANV32AA1WDK66, a serial non-volatile SRAM with double memory architecture and SPI serial interface organized as 128k words of 8 bits each from Anvo-System Dresden. This memory has a silicon-oxide-nitride-oxide-silicon (SONOS) flash storage element included with each memory cell. In the case of an unforeseeable operating voltage drop below a defined value, the SONOS technology enables non-volatile data storage in less than 15ms. An integrated Power Down functionality of the SRAM 3 Click with a standby current of less than 1µA ensures low power consumption, with recovery time from Power-Down Mode typically of 60µs. This ANV32AA1WDK66 possesses unique safety features, such as Checksum Protected Memory Accesses (Secure READ and Secure WRITE instructions) and Time Monitoring that ensures a
high degree of reliability of this Click board™. Corrupt data cannot overwrite existing memory content; even valid data would not overwrite on a corrupted address. The SRAM 3 Click also provides some distinctive advantages of SRAMs, such as fast access times and unlimited write/read endurance. SRAM 3 Click incorporates an additional IC, the TXB0108PWR, an 8-bit bidirectional voltage level translator from Texas Instruments. This allows the Click board™ to be used with a much more extensive range of MCUs. At the same time, the TXB0108PWR protects the ANV32AA1WDK66 from the Electrostatic Discharges (ESD) up to ±15 kV, making SRAM 3 Click a very reliable embedded storage solution. The ANV32AA1WDK66 communicates with MCU using the standard SPI serial interface that supports modes 0 and 3 with a maximum
frequency of 66 MHz. It also possesses an additional HOLD function routed at the PWM pin of the mikroBUS™ socket labeled as HLD. This pin is used with the CS pin to select the device. When the device is selected, and a serial sequence is underway, an HLD pin can pause the serial communication with the host device without resetting the serial sequence. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. 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
PIC32MZ Clicker is a compact starter development board that brings the flexibility of add-on Click boards™ to your favorite microcontroller, making it a perfect starter kit for implementing your ideas. It comes with an onboard 32-bit PIC32MZ microcontroller with FPU from Microchip, a USB connector, LED indicators, buttons, a mikroProg connector, and a header for interfacing with external electronics. Thanks to its compact design with clear and easy-recognizable silkscreen markings, it provides a fluid and immersive working experience, allowing access anywhere and under
any circumstances. Each part of the PIC32MZ Clicker development kit contains the components necessary for the most efficient operation of the same board. In addition to the possibility of choosing the PIC32MZ Clicker programming method, using USB HID mikroBootloader, or through an external mikroProg connector for PIC, dsPIC, or PIC32 programmer, the Clicker board also includes a clean and regulated power supply module for the development kit. The USB Micro-B connection can provide up to 500mA of current, which is more than enough to operate all onboard
and additional modules. All communication methods that mikroBUS™ itself supports are on this board, including the well-established mikroBUS™ socket, reset button, and several buttons and LED indicators. PIC32MZ Clicker is an integral part of the Mikroe ecosystem, allowing you to create a new application in minutes. Natively supported by Mikroe software tools, it covers many aspects of prototyping thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.
Microcontroller Overview
MCU Card / MCU
Architecture
PIC32
MCU Memory (KB)
1024
Silicon Vendor
Microchip
Pin count
64
RAM (Bytes)
524288
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the PIC32MZ clicker as your development board.
Track your results in real time
Application Output via Debug Mode
1. Once the code example is loaded, pressing the "DEBUG" button initiates the build process, programs it on the created setup, and enters Debug mode.
2. After the programming is completed, a header with buttons for various actions within the IDE becomes visible. Clicking the green "PLAY" button starts reading the results achieved with the Click board™. The achieved results are displayed in the Application Output tab.
Software Support
Library Description
This library contains API for SRAM 3 Click driver.
Key functions:
sram3_enable_write- This function is for enabling writing to memory, status register or user serial.sram3_disable_write- Function for disabling writing to memory, status register or user serial.sram3_protect_memory- Function which secures part of memory from writing.
Open Source
Code example
This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.
/*!
* @file main.c
* @brief SRAM3 Click example
*
* # Description
* This is an example that shows the use of SRAM memory, using SRAM 3 click. SRAM 3 click is based on ANV32AA1W,
* and ANV32AA1W is a 1Mb serial SRAM with a non-volatile SONOS storage element included with each memory cell,
* organized as 128k words of 8 bits each. The devices are accessed by a high speed SPI-compatible bus.
* Specifically in this example, we used the high-speed SPI communication characteristics to write data to a specific
* registration address and read it.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initialization SPI module, logger initalization and click initialization.
*
* ## Application Task
* First, we write the data to the registry address 0x00, and then we read the data from 0x00 address.
*
* @author Jelena Milosavljevic
*
*/
#include "board.h"
#include "log.h"
#include "sram3.h"
static sram3_t sram3;
static log_t logger;
uint8_t buf[10] = { 'M','i','k','r','o','E', 0 };
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
sram3_cfg_t sram3_cfg; /**< Click config object. */
/**
* 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.
sram3_cfg_setup( &sram3_cfg );
SRAM3_MAP_MIKROBUS( sram3_cfg, MIKROBUS_1 );
err_t init_flag = sram3_init( &sram3, &sram3_cfg );
if ( SPI_MASTER_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
log_info( &logger, " Application Task " );
sram3_release_hold( &sram3 );
Delay_ms( 100 );
}
void application_task ( void ) {
char buff_out[ 10 ] = { 0 };
log_printf( &logger, "Writing [ %s ] to memory...\r\n", buf );
sram3_enable_write( &sram3 );
sram3_write( &sram3, 0x00, &buf[0], 6 );
Delay_ms( 100 );
sram3_read( &sram3, 0x00, &buff_out[0], 6 );
Delay_ms( 100 );
log_printf( &logger, "Data read from memory: %s \r\n", buff_out );
log_printf( &logger, "---------------------------------------------\r\n" );
Delay_ms( 2000 );
}
void main ( void ) {
application_init( );
for ( ; ; ) {
application_task( );
}
}
// ------------------------------------------------------------------------ END
