2011年10月31日 · I've made a few updates to the MAX7456 video overlay library. The begin() function now has a second optional boolean parameter that causes the library to translate from ASCII to the MAX7456 native character set. This allows you to use the MAX7456 straight out of the box - no character memory reloading required! Just use osd.begin(SLAVE_SELECT, true); to take advantage of the translation. It ...

2008年8月29日 · The MAX7456 is a composite video overlay device, so you would need to supply some form of video (to the video in). This could come from a camera, output of a VCR or DVD player. The Arduino then receives serial data and transmits that to the MAX7456 (via spi) so it can overlay that text on the video signal and output that.

2012年8月7日 · Hey guys, I am new to the whole forum thing, so bear with me please. I have just started trying to use the arduino, and I have to do a project involving a arduinoMega and a max7456 (SparkFun On Screen Display Breakout - MAX7456 - BOB-09168 - SparkFun Electronics) breakout board to create an osd. my first issue is even connecting the two boards together, I understand the real basic SPI theory ...

2015年9月9日 · The board has an ATmega328 and MAX7456 chip connected to it. The only difference I could see is the SS or /CS (not chip select) is digital pin 10 on the shield and digital pin 6 on the minimOSD. The minimOSD also has annalog and digital VCC and GND, but I link them together as I don't need it to be separate.

2009年6月26日 · I was wondering how much interest there would be for a shield board that could do video overlay using the Maxim IC MAX7456. I noticed that some software work has already been done with the chip on the Arduino. I created a hardware design for a client using the MAX7456 chip in the past and found it to be a great chip to work with. I've started a schematic for a shield board and thought I'd get ...

2020年2月4日 · Hello, I'm after a detailed tutorial of the setup and use of arduino with a max7456 osd

2011年11月22日 · The MAX7456 is connected to the Ardunio's SPI port (MOSI, MISO and SCK) and a double row of 0.1 headers can be used to choose which digital pin drives chip select (CS) for the MAX7456. In addition to the MAX7456 OSD chip, there's also a DS1307 Real Time Clock (RTC) with battery backup for displaying time and date to video feed.

2010年3月12日 · Firstly, the dots appeared on the screen throughout because, max7456 puts the character 0x00 (which is a nothing but completely transparent character) throughout the screen when one enables the display..and this character was somehow overwritten with values equivalent to 'dots'..now when burned the eprom to the right value, it looks fine now!

2012年1月24日 · #define MAX7456_DATAOUT 11//MOSI #define MAX7456_DATAIN 12//MISO #define MAX7456_SCK 13//sck #define MAX7456SELECT 10//ss #define MAX7456_VSYNC 2// INT0 Let me emphasize that I have no idea if my PAL support code is correct - I haven't heard from anyone that has used it successfully, and I have no way to test it.

2011年12月2日 · SparkFun On Screen Display Breakout - MAX7456 - BOB-09168 - SparkFun Electronics. This is a breakout board for the Maxim MAX7456 monochrome on-screen display chip. The board is set up with all supporting circuitry and RCA connectors to a