ov7670.c File Reference

Main source file for the OV7670 camera module. More...

#include "ov7670.h"

Go to the source code of this file.

Functions
bool	OV7670_init (I2C_HandleTypeDef *hi2c)

Variables
I2C_HandleTypeDef *	OV7670_I2C
	Functions and other variables! More...

Detailed Description

Main source file for the OV7670 camera module.

pinkeee @ j.t0d.nosp@m.d@pr.nosp@m.otonm.nosp@m.ail..nosp@m.com

Note

See README for contributing guides and info.

Copyright

See License file.

Definition in file ov7670.c.

Function Documentation

OV7670_init()

bool OV7670_init

(

I2C_HandleTypeDef *

hi2c

)

Definition at line 15 of file ov7670.c.

{
  /* Set driver handler to argument. */
  assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
  OV7670_I2C = hi2c;

  /* Start setting registers. This is using pure I2C not SCCB, don't have hardware yet.
   * Additionally, this is transmitting without DMA, very bad for a camera driver but
   * just get it to work first then add things like DMA and interrupts.
   *
   * I have a feeling that this can get much better, maybe make one big buffer
   * and then transmit that instead??!?!?!? this looks so so so bad it hurts.
  */
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_COM7_SOFT_RESET, sizeof(OV7670_COM7_SOFT_RESET), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_CLKRC_RESET_VALUE, sizeof(OV7670_CLKRC_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_TSLB_RESET_VALUE, sizeof(OV7670_TSLB_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_COM7_RESET_VALUE, sizeof(OV7670_COM7_RESET_VALUE), OV7670_TIMEOUT);

  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_HSTART_RESET_VALUE, sizeof(OV7670_HSTART_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_HSTOP_RESET_VALUE, sizeof(OV7670_HSTOP_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_HREF_RESET_VALUE, sizeof(OV7670_HREF_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_VSTART_RESET_VALUE, sizeof(OV7670_VSTART_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_VSTOP_RESET_VALUE, sizeof(OV7670_VSTOP_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_VREF_RESET_VALUE, sizeof(OV7670_VREF_RESET_VALUE), OV7670_TIMEOUT);

  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_COM14_RESET_VALUE, sizeof(OV7670_COM14_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_SCALING_XSC_RESET_VALUE, sizeof(OV7670_SCALING_XSC_RESET_VALUE), OV7670_TIMEOUT);
  HAL_I2C_Master_Transmit(OV7670_I2C, OV7670_WRITE_ADDRESS, &OV7670_SCALING_PCLK_DIV_RESET_VALUE, sizeof(OV7670_SCALING_PCLK_DIV_RESET_VALUE), OV7670_TIMEOUT);
}

Variable Documentation

OV7670_I2C

I2C_HandleTypeDef* OV7670_I2C

Functions and other variables!

Definition at line 13 of file ov7670.c.