Why does I2C Expander reply with NAK when master sends a byte?

Started by learn 3 months ago10 replieslatest reply 3 months ago36 views
NXP LPC11E68JBD48E Microcontroller I2C1 is Master. I2C1 is in chapter 13.  I2C1 is in Master Transmitter Mode.

Insert CRC32 into ROM image such that start up CRC32 value results in constant

Started by plinnie 3 months ago13 replieslatest reply 3 months ago55 views
I'm inserting a 32 bit CRC into a ROM image in using the following method: First I link using a custom linker script, setting a custom CRC32 symbol to 0. Over the...

STMicroelectronics 8 bit MCUs

Started by DebD 3 months ago9 replieslatest reply 3 months ago83 views
Hello! I'm learning to code an STMicroelectronics 8 bit micro-controller. I want to control a BLDC motor with this MCU for electric vehicle application. I'm using...

NAND Flash Memory layout

Started by NikolaDzoniRistic 3 months ago3 replieslatest reply 3 months ago60 views
Hello,I am trying to understand how a NAND flash memory chip works. Specifically, I am communicating with one via SPI protocol. The memory has a certain number of...

Flash Memory

Started by NikolaDzoniRistic 4 months ago10 replieslatest reply 3 months ago84 views
Hello all,I am using a flash memory chip: "WINBOND 25N01GVZEIG". I am having a lot of difficulty making it work because of my  bad understanding of the product...

AD9601 with 200MSPS connected to DSP

Started by iosman123 4 months ago5 replieslatest reply 4 months ago58 views
Hello,I am working with high speed ADC (200/250MSPS) to sample the signals and connect it to stm32f429 microcontroller.How is it possible to handle such high speed...

Digital PID controller in velocity form

Started by steven01 4 months ago4 replieslatest reply 4 months ago102 views
Hello all,I have been facing a problem how to implement digital PID controller. I have studie a lot of books and articles about that and in all the books I have...

The SPI interface reads the same value from the A/D. Why is it stuck?

Started by Eliza 5 months ago18 replieslatest reply 4 months ago74 views
I have a pressure sensor connected through the SPI interface of a Microchip controller, p33FJ128MC706A. The sensor is read at 125 Hz driven by a timer interrupt...

Question about send parameter from web site with cgi

Started by OmarPoch 5 months ago3 replieslatest reply 5 months ago35 views
Hi team. I'm ussing RCM3700 DC 925 and RabbitWebI´m sorry if my question is very "dumb"I have a page with a link thats call to a .cgi declarated into my RCM 3700...

NOR Flash as mass storage with cortex M Series.

Started by nomancyclewala 5 months ago8 replieslatest reply 5 months ago74 views
I have a 4MB NOR Flash. i want to show this memory as Mass storage on a PC when connected as a USB device. I have some confusions regarding the need of Filesystems...

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