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ADV7623 OSD Font Question

Question asked by jimmy.dou on Jun 20, 2013
Latest reply on Jun 27, 2013 by Wahida

I just want to simply display a few letters on the screen, who can tell me the simple process about adv7623 How to develop.


I have a few about ADV7623 OSD font problem.

1. ADV7623 through ADI_ADV7623_OSD_Tool_Rel0.64, generating font code, the code with a lot of API functions, if I was using a 51 MCU, how to add these API functions.


2. I use the font software generates a string ABCDE, whether through SPI interface send the two strings to ADV7623.

unsigned char osd[]= {

  0x09,0x00, /* SPI CMD */

  0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x45,0x44,0x43,0x42,0x41}; /* Word:0 */


unsigned char osd_position[] = {

  0x05,0x00, /* SPI CMD */

  0xf0,0x2d,0x19,0x00}; /* Word:0 */


Why spi interface not be able to write into the internal ram


3. How to set to SPI slave mode.