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Questions tagged [programmer]

A tool to program microcontrollers and/or programmable logic.

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2answers
57 views

ST-LINK/V2 repairing issue

My original ST-LINK/V2 has been broken. There was the Short circuit between VDD and GND pins. I changed the MCU(STM32F103C8T6) and the voltage regulator(LD3985M33R) with new ones. Short Circuit ...
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1answer
90 views

Stand-alone flashing of STM32

I'm developing a fixture tool to test a custom PCB with ST Bluenrg1 (STM32 M0 core + bluetooth). This fixture tool has its own MCU working at 5V. I would like to flash automatically first previous ...
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1answer
40 views

TinyFPGA A series board programmer compatibility

Since the programmer writes configurations to the flash of the fpga can I use the TinyFPGA programmer for A series boards on any lcmxo2 chip? Or can I at least use it for the same chip with a ...
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2answers
21 views

What is IDC connector pitch on a USBAsp?

I am planning to use a USBASP programmer to program one of my boards, and I want to use a fitting receptacle on my board. I fail to find the exact pitch that the USBAsp's IDC connector has (as I ...
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1answer
44 views

Program ESP32-CAM via FTDI without manual reset?

When programming the ESP32-CAM with an FTDI, I proceed as follows: Connect GPIO0 to GND. Reset the ESP32-CAM. (by cutting power)...
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0answers
43 views

MON08 RS-232 Programming Interface

I'm trying to build a MON08 interface to program a 68HC908QB8, as per page 13 of this PDF: Low-Cost Programming and Debugging Options for M68HC08 MCUs Below is my schematic, from which I have ...
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2answers
129 views

Can I program an MCU directly from USB if it supports USB? [closed]

If a microcontroller has USB functionality, can I program it directly from a USB port? Can I design the PCB without a USB to serial converter? What are the precautions I should take? The example that ...
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0answers
96 views

Generate XCF file for Lattice Diamond from command line

I am writing a Makefile for Lattice Diamond and have come as far as to cover all steps from synthesis to bitfile. To program the FPGA (a MachXO3L in my case) I looked for a command line tool, and ...
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0answers
61 views

Can't program STM32F4

I am really confused and helpless. I made a custom PCB with the STM32F446VE (LQFP100) chip and got it programmed (SWD). After that I made a second PCB where I wanted to solve some Problems regarding ...
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1answer
164 views

How to lock an ATMega328P from cloning?

I was working with the Arduino IDE. I tried to find out from where a MCU can be locked so that nobody can make a clone from it. I found many answers describing something about lock bit. I realized ...
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1answer
424 views

BOOT0 vs BOOT1 circuit design in STM32f103 (ST-LINK)

I have a question about designing st-link v2. According to the schematics provided by st.com Please help me in analyzing this schematic. Why boot0 was pulldown with a 100k resistor but connected boot1 ...
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2answers
770 views

How can I program an Atmega32u4 over USB with this schematic?

This is my first time trying to program an Atmega32u4. I made a PCB with the following schematic: Now I've soldered all the parts onto the PCB, and I've plugged a micro usb cable from my computer ...
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2answers
1k views

SWDAP vs CMSIS-DAP vs DAPLink

EDIT : I got the basic questions (for example, what is CMSIS-DAP?) answered by user @Nipo. Based on that, I restructured my post in a more logical way. Hopefully ...
2
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0answers
76 views

Deployoing compiled program from Atmel Studio or Avr dude to Atmel “XMEGA-A3BU Xplained”

Im attempting for the last 3-4 days to connect the Atmel dev board to the computer in order to either load the .elf or hex file to the bootloader in order to turn on a LED. Im following instructions ...
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1answer
93 views

AVR programmer necessary? [closed]

I have an atmega168pb and I've noticed that there is a difference in how the board can be programmed between Windows and Linux. On Windows using Atmel Studio you can select an ISP interface and it ...
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1answer
72 views

PICKit 3 VDD Overcurrent

The PICKit 3 user guide tells me that it can source up to 30mA when in "Debugger Powered" mode, and that this mode can be used for independent programming in some cases. It also tells me the PICKit 3 ...
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2answers
96 views

USB type-B sockets vs USB Mini-B sockets [closed]

Most Programmers hardware equipped with USB type-B connectors for connecting to PC. USB Mini-B connectors are much less used in device programmers. Have the USB type-B connectors any advantages or ...
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1answer
112 views

Need help understanding an universal pin driver schematic

I was studying a schematic of an universal 48-pin device programmer, and while most of it seems pretty straightforward to me, I have trouble understanding the reasons behind some of the decisions made ...
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1answer
155 views

SWD AHB-AP access gives ACK_FAULT

When attempting to debug a STM32L471RGT6 chip over SWD, I encounter an ACK_FAULT whenever sending an AP request to halt the core. I've implemented the following sequences which all work correctly, ...
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3answers
4k views

avrdude: error: program enable: target doesn't answer. 1

Before I can program my ATmega32 through USBasp but now only in 30 times or more try I can program ATmega32. I get this error ...
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1answer
97 views

Not able to program Attiny85-20PU

I have a small amount of Attiny85-20PU which I am trying to program with a stk500v1-type-programmer (for the sake of simplicity say an Arduino with ArduinoISP-Sketch). My first attempts with that ...
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1answer
954 views

Can I covert a 3.3v/5v USB TTL Serial device to 1.8v using a LM1117 1.8v regulator?

I have a HDD which has serial access but needs 1.8v TTL serial. I only have 3.3/5v serial devices. The standard PL2303, A UART Usbbee, and a generic serial adapter. The PL2303 & generic have 3v/...
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2answers
631 views

Programming a STM32F407 with a Raspberry PI: No answer on JTDO

Introduction Getting in touch for the first time with an ARM MCU (the STM32F407ZE), I am trying to generate a first working "Hello world!" blinking led. For programming the MCU, it seem possible ...
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1answer
310 views

Is a TXB0108 apt for level-shifting in SPI programming?

I plan to use a TXB0108 to level-shift between the cheap CH341A programmer voltage and the Winbond W25Q64FW from 3.3V to 1.8V On the silicon I can read: ...
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1answer
45 views

PIC programmer problems reading and writing program configuration memory

I was making a programmer for pic16f877a using arduino with the help of the programming specification document as I can't find any good one around here at the time. I was able to write code in the ...
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1answer
166 views

PIC12C672 Replacing Upgrading to PIC12F683 RT809F PROGRAMMER

I'm new to the microchip PIC world but not to electronics. I've been learning chip level PC and laptop mother board repair. I have a smart battery charger that uses a PIC12C672 that was destroyed ...
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1answer
180 views

Why is the Voltage only 1.4 for reset input when in high impedance?

I attempted to make myself a 2-in-1 programmer so I can program both AT89Cx051 and AT89S52 on the same board without having to do so much plugging/unplugging of the port. The main issue is the strobe ...
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2answers
1k views

Explain why the NodeMCU auto-program circuit would be useful

I'm looking at the NodeMCU "auto-program" circuit but could not understand why it is there at all. From my point of view, this circuit enables open-collector outputs, but makes programming dependent ...
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1answer
403 views

Can not flash atmega328p with usbasp

My usbasp was working fine.I could burn programme to atmega328p.But last night i wanted to cahnge the clockspeed by clock_prescale_set ( clock_div_t x ). after that it burned successfully and ...
2
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2answers
208 views

Switch between power and signal with MCU

I am trying to make a basic EPROM programmer using an Arduino. It is designed to programme M27c322/160/800 devices. One problem I am encountering is that these 3 devices have a couple of the pins ...
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1answer
230 views

EPROM programmer voltage/signal switch

I am trying to make a basic EPROM programmer for M27C322/160/800 chips, mainly as an learning exercise since I know I can buy adaptors for programmers I already own. I found a very useful resource in ...
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0answers
1k views

TrueStudio flashing board gives “Unknown MCU found on target error”

I am attempting to flash a custom PCB using Atollic TrueStudio and a Nucleo board. I have the PCB connected to the SWD header on the Nucleo. In TrueStudio I have set the target device and am using ST-...
2
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1answer
141 views

Is it a good idea to connect PC to a non-isolated DC supply

I am working on an AC Voltmeter. The supply to the microcontroller is not isolated. Only a bridge rectifier is used convert AC to DC. To get 5V, resistors are used to drop down the voltage. Is it a ...
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1answer
2k views

usbasp with avrdude: error: program enable: target doesn't answer. 1

I purchased a "usbasp" programmer from AliExpress for use with my ATtiny84A AVR devices. This has the text "USBASP V2.0 LC Technology" screenprinted on the top of the PCB, and it looks very much like ...
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1answer
601 views

What data is stored in an eeprom that’s not in the flash memory? [closed]

I’m wondering generally what information is stored in an eeprom that’s different than what’s in the flash drive that contains firmware? Mostly in mobile devices. Does the eeprom contain user settings ...
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0answers
63 views

How to read all memory from damaged CF?

My CF card has been corrupted. I don't know how is that happened. I just using new card (five months old) on EOS 5D Mark II with installed ...
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1answer
165 views

Can a Raspberry PI be used for high voltage parallel programming?

I have a Raspberry PI 2, and I know it's possible to use an Raspberry PI for programming an AVR, but I came across something. Apparently if you brick your chip by fiddling with the fuses you need a ...
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1answer
583 views

ESP8266 ICSP design: which circuit design guidelines to avoid fails/damages?

I'm working on a project which is all on breadboard right now. I'm close to final version, so I'm planning to design PCB for the release (not commercial use, just for some friends of mine). The ...
0
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1answer
397 views

Programming flash in manufacturing environment using Codewarrior TAP

I would like to use the Codewarrior TAP to program flash on boards in a manufacturing environment. My target is a P4080 CPU w/Flash memory. I am currently using an Abatron BDI-3000 for this, but ...
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1answer
144 views

SPI programming for ATtiny MCU - will it be influenced by TWI pull-up resistors?

I am wondering if this could be the case for an ATtiny84 which has some common pins used for both SPI and TWI (they are part of a so called USI - Universal Serial Interface). Basically I am asking ...
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1answer
24 views

Idea behind Reverse Insertion Check

I read through universal device programmer (device that program ICs like AVRs, PICs, EEPROM, etc) like items in links below, I found that these programmers perform these checks: insertion test. ...
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1answer
177 views

USBasp programmer first firmware

I am building an evaluation board for ATmega32, I am designing an embedded USBasp programmer (The programmer will be also in the board and they will be a micro-usb header to connect the board to PC). ...
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2answers
260 views

Is it possible to create a homemade programmer for PIC16F84A?

Is this simple circuit able to program a microcontroller? Or Does it need any other components? After looking at this question, I can know where D+ and D- of USB cable are, by looking at the colours ...
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3answers
2k views

What's the risk of leaving VPP/MCLR floating?

In the microchip PM3 ICSP design guide, this diagram is shown to demonstrate a typical implementation of ICSP: Here, the MCLR/VPP pin is pulled to 5V during normal ...
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1answer
236 views

USBasp Difficulties

I am new to the USBasp. I am trying to program a Mega1284. I have a cheap Chinese one, it is recognized in XP as well as win7. I made a board with a ZIF socket, 10 MHz xtal, 22p cap, 10k pullup on ...
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2answers
167 views

Is there a such thing as a UV EPROM whose contents cannot be burned unless the UV-sensor is uncovered? [closed]

Is there a such thing as a UV EPROM whose contents cannot be burned unless the UV-sensor is uncovered?
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0answers
625 views

STM32 'Connect under reset' suddenly stopped working

For the last few months I've been working on a project that used an STM32F030 microcontroller. Due to a shortage of GPIO I've had to use the SW debug pins for other functions. Until recently this wasn'...
3
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1answer
2k views

MCP2221 USB To UART Programmer

I am very new to the electrical design and had a very basic question. I am trying to program a Atmega328p using the MCP2221 interfacing chip. I picked this chip due to it being the only converter I ...
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1answer
228 views

Programmer /Debugger for freescale kinetis series [closed]

I want to use frescale MK10 Device for my Project, the Cost of Programmer debugger is very high , so i Want to ask is there any low cost P/D ot any hack available with any system so that i can use ...
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8answers
5k views

Absolute cheapest, (easy) way of starting programming on ARM microcontrollers [closed]

I want to start using ARM processors, migrating from PICs which I've been using for too long. 8 bit models were available for under $1, programmers for under $10, and I have been spoilt by the ease ...