A software implementation of a serial data stream on an I/O line.
2
votes
1answer
141 views
How to write to 93LC46B EEPROM from an Arduino using SPI
I have a question regarding eeproms and an Arduino (I am using Arduino Uno). I have the following eeprom: 93LC46B. From the datasheet I understand that in order to write the integers ...
5
votes
2answers
95 views
i2c external pullup kills communication
I am using an MCP23017 (which shouldn't matter tho) to extend the number of GPIO pins of an arm based linux computer using i2c-dev bitbanging. It all works fine with wires of a few centimetres.
The ...
3
votes
1answer
380 views
FTDI-based programmer works with ATmega but not ATtiny?
I'm using an FTDI-based bit-bang programmer for my AVR MCUs with AVRDUDE. It works perfectly with ATmega32A, but does not work with ATtiny45.
The command that I use to try if it works is:
...
0
votes
0answers
262 views
ISP with Digitus USB/Serial Converter on ubuntu
I have a very simple serial bitbanging device which is connected via a Digitus USB-RS232-Converter. The programmer works fine when run on a windows7 machine (slowly as expected). Trying avrdude on my ...
2
votes
2answers
471 views
SPI flash memory doesn't work without huge delays
For my graduation work I am developing a microcontroller system where the MCU (MSP430FR5739) talks to an SPI flash (SST25VF080B to be particular). I've achieved this without using the eUSCI SPI master ...
4
votes
5answers
2k views
Arduino software serial - full duplex
I need two serial ports for this Atmega328 Arduino project, but this processor has only one hardware UART. The processor, hardware design, and programming environment are already set, and I cannot ...
