C38A

This article explain how to use camera C38A (ov7620) with apf9328.

Pinout

The pinout of the kit is as following :

C38A pinout
PIN	2	4	6	8	10	12	14	16	18	20	22	24	26	28	30	32
	Y1	Y3	Y5	Y7	RST	FODD	HREF	VSYN	PCLK	VCC	VCC	UV1	UV3	UV5	UV7	VTO
	Y0	Y2	Y4	Y6	PWDN	SDA	SCL	AGND	AGND	EXCLK	AGND	UV0	UV2	UV4	UV6	GND
PIN	1	3	5	7	9	11	13	15	17	19	21	23	25	27	29	31

Powering

The C38A is 5V powered, it's not a great problem to power the module at this voltage. But the problem is for I/O, because all apf I/O are 3.3V signals. To solve this problem, the [mxhaard.free.fr/spca50x/Doc/Omnivision/OV7620.pdf chip used in C38A] provide a IO VDD power entry that can be powered both 5V or 3.3V. By default on C38A kit, all alimentation are connected to 5V. To provide 3.3V on IO alimentation (DOVDD) JP2 strap on kit must be deconnected, and 3.3V must be branched on J6 (DOVDD).