Questions tagged [isp]

In System Programming. Updating a part's memory while it is on the end product's PCB.

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8
votes
2answers
5k views

SPI device prevents ISP programming

I have an ATmega8 with a Nokia LCD 5510 connected to it. Everything works great on a breadboard and my next step is to move it to a more permanent board. My problem is that I can't program the ATmega8 ...
6
votes
3answers
3k views

How should power be supplied for in-system programming?

I'm trying to program an ATmega328 with an AVR-ISP-MK2 from Olimex. The programmer has a setting for whether to supply power to the target board or not. The connector has +5V and GND pins. I wanted to ...
7
votes
4answers
3k views

ATtiny2313 refuses to be programmed after setting CPU clock to 500kHz

The other day I was writing a program for an ATtiny2313. Once it worked I decided to test it at the various clock speeds that are available and programmed through setting the LFUSE as described on ...
16
votes
4answers
12k views

Is it possible to use AVR ISP programmer to program a PIC chip?

I want to try programming a PIC chip and just see, how much different it is compared to an AVR. I've got an AVRtinyISP and would like to know, if it would be possible to use that to program a PIC chip ...
4
votes
1answer
6k views

Hardware and software to program AT89S52 chips with linux

Seeing that the ATMEL AT89S52 chips are so cheap (8 usd for 5 with free shipping from ebay!), are supposed to have a simple architecture and a lot of documentation available online, I would like to ...
1
vote
1answer
987 views

AVR ISP-Programing LEDs SCK

I'm using a Attiny45 microcontroller and USBtinyISP as my programer, and this is the first time I need to hook stuff up (in this case just LEDs, but eventually I'll want to conect a raspberry pi) to ...
5
votes
2answers
480 views

Programming several AVRs with one ISP: which line to break?

Let's suppose that I have two AVRs connected to one ISP connector. To programm only one MCU in this configuration I neet to break one (or mayby several) lines goes to the MCU I don't want to be ...
4
votes
1answer
3k views

Can an ATtiny with RSTDISBL programmed be reprogrammed over ISP?

The ATtiny85 datasheet, on page 152, seems pretty clear on this: After this fuse has been programmed device can be programmed via high-voltage serial mode, only. But elsewhere, on page 28, it ...
3
votes
1answer
775 views

Programming several AVR MCUs simultaneously? (with parallel)

I was able to program three ATMEGA32 simultaneously using ISP. In your opinion, can I program several AVRs at once with parallel? Unfortunately, I do not have a parallel programmer. Can you test it ...
2
votes
1answer
4k views

How does avrdude with AVR-ISP-MKII respond when no target board is connected?

How does avrdude with AVR-ISP-MK2 respond when no target board is connected? I'm trying to troubleshoot my set-up, and would like to know if the problem lies between the laptop and programmer or ...
2
votes
1answer
2k views

ATTiny Circuit only works when connected to AVR ISP

I've got a very simple circuit (as you can see from the diagram below) with an ATTiny45 and a piezo buzzer. Everything worked great as I was testing it out and had the ISP (an AVR ISP MkII) attached. ...
1
vote
2answers
3k views

Programming ATMega16L over ISP interface

Sorry if the question seems silly, but I really need some expert guidance. My question is as follows: What are the necessary pins to program an ATMega16 chip over ISP interface? I've bought a locally ...
1
vote
1answer
377 views

Serial Programming and I2C port “conflict”

I'm designing a board in which an Attiny85 is connected to an accelerometer (MPU-6050) via I2C. The I2C pins are in the ISP bus (SDA/MOSI, SCL/SCK). I wonder what happens to the accelerometer during ...
1
vote
1answer
718 views

In-place programming of ATtiny85

I've been playing around with an idea for a little hand-held gaming device using a Nokia 5110 screen and an ATtiny85. The ATtiny is programmed using my Genuino UNO as ISP. I was wondering if it's ...