Efficiently manage and retrieve your data with GD25LQ16C and ATmega32
Revolutionize your storage solution
Published Nov 01, 2023
Click board™
Flash 7 Click
Dev. board
EasyAVR v7
Compiler
NECTO Studio
MCU
ATmega32
Enjoy rapid file transfers and smoother application performance
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Hardware Overview
How does it work?
Flash 7 Click is based on the GD25LQ16C, a high-performance 16Mbit SPI NOR Flash Memory solution with advanced security features from GigaDevice Semiconductor. Requiring only six signals to communicate between the MCU and the memory thus reduces the design complexity board space and total system cost. It is specifically designed to meet the different needs of various electronic applications in terms of density, performance, reliability, and security while providing low power consumption. This Click board™ includes an LDO regulator BH18PB1WHFV from Rohm Semiconductor to provide the 1.8 V supply voltage. The LDO cuts power consumption by lowering its current consumption to approximately 2 μA when the application operates in the standby state. The output from the LDO
regulator provides a needed reference voltage for one side of the TXS0108E, an 8-bit bidirectional level shifting, and a voltage translator for open-drain and push-pull applications from Texas Instruments. The reference voltage for the other side of the level shifter is taken from the 3.3V pin from the mikroBUS™. Flash 7 Click communicates with MCU using the SPI serial interface that supports the Dual/Quad SPI and the two most common modes, SPI Mode 0 and 3, with a maximum SPI frequency of 104 MHz. The Dual I/O data is transferred with a speed of 208 Mbits/s, and the Quad I/O data with a speed of 416 Mbits/s. In addition to the SPI communication, the Flash 7 Click has two additional pins for Write Protection and HOLD function routed to the PWM and INT pins of the mikroBUS™ socket. The HOLD
pin, labeled as IO3, can be used to pause the serial communication with the device without stopping the operation of the write status register, programming, or erasing in progress. The configurable Write Protection function IO2 protects the memory array contents via the Software Protection Mode. 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
EasyAVR v7 is the seventh generation of AVR development boards specially designed for the needs of rapid development of embedded applications. It supports a wide range of 16-bit AVR microcontrollers from Microchip and has a broad set of unique functions, such as a powerful onboard mikroProg programmer and In-Circuit debugger over USB. The development board is well organized and designed so that the end-user has all the necessary elements in one place, such as switches, buttons, indicators, connectors, and others. With four different connectors for each port, EasyAVR v7 allows you to connect accessory boards, sensors, and custom electronics more
efficiently than ever. Each part of the EasyAVR v7 development board contains the components necessary for the most efficient operation of the same board. An integrated mikroProg, a fast USB 2.0 programmer with mikroICD hardware In-Circuit Debugger, offers many valuable programming/debugging options and seamless integration with the Mikroe software environment. Besides it also includes a clean and regulated power supply block for the development board. It can use a wide range of external power sources, including an external 12V power supply, 7-12V AC or 9-15V DC via DC connector/screw terminals, and a power source via the USB Type-B (USB-B)
connector. Communication options such as USB-UART and RS-232 are also included, alongside the well-established mikroBUS™ standard, three display options (7-segment, graphical, and character-based LCD), and several different DIP sockets which cover a wide range of 16-bit AVR MCUs. EasyAVR v7 is an integral part of the Mikroe ecosystem for rapid development. Natively supported by Mikroe software tools, it covers many aspects of prototyping and development 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
AVR
MCU Memory (KB)
32
Silicon Vendor
Microchip
Pin count
40
RAM (Bytes)
2048
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 EasyAVR v7 as your development board.
Track your results in real time
Application Output
1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.
2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.
3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.
Software Support
Library Description
This library contains API for Flash 7 Click driver.
Key functions:
flash7_send_command- Send command functionflash7_page_program- Page program functionflash7_read_memory- Read memory 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 main.c
* @brief Flash7 Click example
*
* # Description
* This is an example that demonstrates the use
* of the Flash 7 Click board.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initialization driver enables SPI,
* disables write protect and hold, performs whole chip erase,
* targets the memory address at "4096" for page program starting point
* and writes data which is also displayed on the log.
*
* ## Application Task
* 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.
*
* @author Stefan Ilic
*
*/
#include "board.h"
#include "log.h"
#include "flash7.h"
static flash7_t flash7;
static log_t logger;
static char demo_data[ 9 ] = { 'm', 'i', 'k', 'r', 'o', 'E', 13 ,10 , 0 };
static char rx_data[ 9 ];
static uint32_t memory_addr;
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
flash7_cfg_t flash7_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.
flash7_cfg_setup( &flash7_cfg );
FLASH7_MAP_MIKROBUS( flash7_cfg, MIKROBUS_1 );
err_t init_flag = flash7_init( &flash7, &flash7_cfg );
if ( SPI_MASTER_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
flash7_default_cfg ( &flash7 );
log_printf( &logger, " ----------------------- \r\n" );
log_printf( &logger, " Chip Erase \r\n" );
flash7_chip_erase( &flash7 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
memory_addr = 4096;
log_printf( &logger, " ----------------------- \r\n" );
log_printf( &logger, " Write data : %s ", demo_data );
log_printf( &logger, " ----------------------- \r\n" );
flash7_page_program( &flash7, memory_addr, demo_data, 9 );
Delay_ms ( 100 );
log_info( &logger, " Application Task " );
log_printf( &logger, " ----------------------- \r\n" );
}
void application_task ( void ) {
flash7_read_memory( &flash7, memory_addr, rx_data, 9 );
log_printf( &logger, " Read data : %s ", rx_data );
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
