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130 Threads found on Spi Avr
Hello, I sit and looking mistake for 5 days... I trying using NRF24L01+ and STM32F0DISCOVERY. My library working on ATmega8, but when i trying using this function in STM32 NRF no working... I replace methods communication (other in avr, other in STM). OK, first code: main.c int main(void) { /* USER CODE BEGIN 1 */ /* USE
I am using XMEGA-B1 XPLAINED board. It has dataflash AT45DB642D. I am trying to use USART in Master spi mode for the same, but somehow I am unable to do it successfully. I have done same with normal spi mode and its working properly. When it comes to USART in Master spi mode it doesn't work. At least I should be able to read (...)
hello,i wanted to interface 2 atmega8 ic through spi and i wrote theise code as Master and Slave but when i execute the code in circuit in proteus app it wrote "Testing" in lcd but then nothing and the transfer cant complete wnd the code freezing in the code line: while(! (SPSR &(1<<spiF) )); AND NOTHING.. why the transfer cant be
You get the answer by reading the STE2007 controller datasheet thoroughly. Incomplete data bytes are discarded by the controller. Means if you are using a hardware spi interface, which can send multiples of 8 bit only, you have to send e.g. 2 bytes (16 bits) to transfer 9 bit of data, but 7 bits are discarded. Alternatively, you can send the
Yes you can reprogrammin using an avr spi programmer and avrdude or atmelstudio. depending of the configuration you want to use (i.e internal or external oscillator, frecuency of oscillator, enable disable the reset. etc). try. Juan.
I am trying to connect my ATMEGA128 board with ADC128s102 for my prj. The board is already functioning with programming interface ISP avr MKII. AS shown in the diag the MISO and MOSI are connected as shown . Since the ADC uses spi i have connected the MISO MOSI and SCK to corresponding pins on uC. Now since the SCK here is common for both Programme
I am trying to send data from one atmega8 to another atmega8 using the spi. But on the master mpu there is no clock signal at sck pin.
I wants to interface sandisk 4gb sd memory with at89s8252 mcu using spi. so, any body can help me for initialization process with sample code.
Hi, As far as i see it uses a standard spi interface. Where exactely is the problem? Klaus
Will spi need any program written in flash memory of MCU's so to transfer new program into flash memory ,or it works using hardware of MCU automatically ?
SALAM to all Atmega32 as a Slave Atmega8 as a Master Code is Done according to datasheets But Proteus Simulation Not Working CODE for Master: /* * spi_8_MASTER.c * * Created: 1/8/2015 3:36:36 PM * Author: ANCC */ #define F_CPU 1000000UL #include <avr/io.h> #include #define MOSI PINB3 #define SCK PINB5 #de
Been working on this for months now, learning from scratch all about programming in C, MCUs, spi, Registers, and now the nRF24 module. I looked at hundreds of codes (I learn through trial and error - get a working code then learn about every part about it by trying things here and there). I finally got to get the spi working to communicate between
Hello. I have settled on a ADC for a project, ADS1174, its a 4 channel simultaneous sampling 16-bit ADC. I have a Arduino Due(SAM3X8E) which I am using, I'm thinking of etching a board to fit over the Due as a protoshield. The ADC has a spi interface but it has one output signal for each channel, and I wonder how I should use them. I want to
I need to initiate atmega8's spi so that i can first convert the input from analog to digital form and then connect nRF24L01 and hence establish connection between two atmegas. Can i get the complete avr code and related connection details for the above specified problem statement.
Hello guys, I am facing an issue, where I can't manage to work spi interface connection between two atmega's. Basically, I am trying to get data from slave avr uart input and send it to master uart pin through spi. I guess the problem would be somewhere in code (maybe opening spi connection...). If anyone could take a (...)
Hi i'm working on spi communication between atmega168(master) and atmega16(slave) the problem is that the slave receives what the master send but the master can't read what the slave r the codes: Atmega 16: #include <avr/io.h> #include #define SETBIT(ADDRESS,BIT) (ADDRESS |= (1<
Hello guys, Does anyone have experience with VS1053 MP3 Module interfaced to avr
I am trying to use spi to connect to FPGA and microcontroller. When a switch on the FPGA is pressed I want to send a code (8 bit code assigned to each switch by me) to the microcontroller. For this I have made the FPGA as master and written a code for data transmission. First I serialise the 8bits, using a shift register and send 1 bit at a time
Protocol spi is used for communication with MMC/SD card. Although there is a problem ? level of voltage accepted by the card is +3,3V, so that giving it +5V can cause damage. So, how to make microcontrollers commu
Hi, I have a problem as follow: In my circuit I have a enc28j60 module on spi . I setup a Serial interface to PC to show somethings on terminal. All is ok when I turn on this device when my avr MKII connected to it(spi), but when I disconnect MKII and reset it I see leds of enc28j60 blinking abnormaly and it is not working. I try to (...)