Hello,
I bought an arduino MEGA 2560 board equipped with an ATMEGA2560 microcontroller.
I would like to know how you can download the software written with the micropascal compiler for avr. thank you

oldspie:=SPIE_bit; //save the flag that enable spi end trasmission interrupt portb.b3:=0;// slave select to low spie_bit:=0;//disable spi end trasmission interrupt spdr:=%01010101;//write spdr to start trasmission delay_us(30); c1:=SPSR;//read on datasheet of atmega 8 c1:=spdr;//save the received va...

Marina il ook the solution, in easy words is this: for work well before use a spi interface you must disable the end of spi trasmission interrupt use spi interface and reenable it before use a fat32 library.
bye bye

I know well especially the spi onboard functions on atmel atmegaavr microcontroller and i've used sucessfully that setting of spdr in many other projects. If i write a byte in spdr register, as you can read on datasheet, start the trasmission on a spi interface and after the transmission i can read ...

I use atmega32 and easyavr5a this is the program: program a32; const CR_ : char = 0x0D; const LF_ : char = 0x0A; VAR bufferr:string[32]; Mmc_Chip_Select : sbit at PORTB.B2; Mmc_Chip_Select_Direction : sbit at DDRB.B2; fHandle : short; c,c1,mmc_error:BYTE; a:string[3]; aa:array[4] of char; txt : arra...

Hi, I'm using the fat32 libstock library routines to write a file on an sd card and everything is ok, but if I add in the program setting spdr for communication via spi with other devices happens that new program write operations on files are not complete and more precisely "mmc_error : = FAT32_Writ...

Hi, I'm using the fat32 libstock library routines to write a file on an sd card and everything is ok, but if I add in the program setting spdr for communication via spi with other devices happens that new program write operations on files are not complete and more precisely "mmc_error : = FAT32_Writ...

Hi! ...poorly written procedures probably favor safety and reliability... I think that procedures that favor safety and reliability can not be called "poorly written". ...I wrote wonder if it's possible to set some variable or release a version of the routine in which safety reliability and speed i...

ok, ultimately using tools (routine) supplied with the compiler and the microcontroller with a clock for eight megahertz I can reach a maximum design speed in writing sd card nearly 48000 bits per second by Access in writing blocks of 512 bytes each 1/84 seconds (about 11 milliseconds) and can reach...

Hi! I inspected your code and found nothing wrong considering MMC/SPI routines. Best regards Slavisa Ok, i need to inform you that in the code i sent you by mail there are some errors (i change the code many time and somethin forget to delete) but this that do not incide to check mmc/spi routines w...

Hi! The microcontroller is a atmega 32 and the clock is 8 megahertz, in my opinion the problem is kind of software in the sense that by all the tests carried out and measures apparently the write operations management is handled in complex ways almost as if there was a sort of chace between SD memo...

Hi! Try to set the SPI SCK to highest possible frequency. SPI1_Init_Advanced ---- > _SPI_FCY_DIV2 (Sck = Fosc/2, Master mode) Also, you can send me your project to my email: slavisa.zlatanovic@mikroe.com and I'll try to help you. Best regards Slavisa Tank you for the answer, :D Of course, I set spi...

Hi! Try to set the SPI SCK to highest possible frequency. SPI1_Init_Advanced ---- > _SPI_FCY_DIV2 (Sck = Fosc/2, Master mode) Also, you can send me your project to my email: slavisa.zlatanovic@mikroe.com and I'll try to help you. Best regards Slavisa Tank you for the answer, :D Of course, I set spi...

Hello mikroe team, I'm developing a system for verifying and synthesis of physical quantities such as accelerations, initially i sample data and trasnfer it by usart serial connection to a PC to make later calculations and everything went very well, now I need to store these data on an SD and I hope...

dear mikroe support team, i have to ask a question about mmc file oriented routines. i'm writeing a program that put in communication three microcontrollers plus an sd card on a spi bus. I developed first the part not including a sd card. For this first target didn't use the precompiled routines sp...