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.