Tagged Questions

0
votes
3answers
122 views

How to stock variables in FLASH memory

I am working with a STM32 eval-board from STMicro which includes a ARM Cortex-M4 processor. I need a LUT for cosinus and sinus (read-only variables). I need to manage my RAM memory therefore I want to ...
0
votes
0answers
114 views

Store data in built-in Flash of PIC at runtime using C code

I am designing PIC16F877a based project that counts the number of people in a room and turn ON the relays in accordance with that number like if 5 persons in a room then One relay would be ON. I want ...
-2
votes
1answer
87 views

How to search date wise in flash memory using microcontroller?

I am developing a data logger in which I am using 8 MB of flash memory to store the sensor data with date and time. I am using RF interface to transfer that data to PC. I am planning to have PC ...
2
votes
1answer
113 views

Writing parameters into Code memory at Run time during Initializations - 8051

I need to make this possibly. I am using keil IDE and the AT89c51RD2 MCU. At initialization, a function will be called to derive about 1500bytes. I want to write this byte to code memory (byte by ...
3
votes
0answers
100 views

Expand RAM and flash on LPC2294

I have a project in mind. I want to buy an LPC2294 microcontroller, SDRAM IC, and flash IC (those IC's haven't yet been defined). What I want to do is connect those ICs to the microcontroller in order ...
3
votes
7answers
764 views

MCU choice, 3Mbps UART,

I am about to develop a portable device to be interfaced with a computer (so, consumer electronics). I only have experiences with Microchip and Texas Instruments and I would like to have some hint to ...
1
vote
2answers
99 views

Watchdog Signature in Flash memory or RAM?

We used to use Watchdog signatures in our control applications. Basically we used to allocate a reserved memory in RAM(uninitialized) and used to store the watchdog signatures. On power on, the ...
5
votes
1answer
433 views

DIY: hardware encrypted pendrive

I would like to build a hardware encrypted (at least AES-128) pen drive for myself. Which micro controller and which storage technology do you recommend? I've been experimenting with a PIC32 and a 2GB ...
1
vote
3answers
895 views

MCU: saving data directy on flash. What's the advantage?

I know on some MCUs its possible to save data directly on program memory (flash memory). AVRGCC compiler uses "PROGMEM" keyworkd, MPLAB C18 uses a similar one with the same effect. However, what's the ...