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Add experimental double FPS mode for OV2640

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Allows for 52fps@CIF, 26fps@SVGA and 6.5fps@UXGA (unchanged) when XCLK is set to 10MHz
This commit is contained in:
me-no-dev
2019-01-26 21:33:23 +01:00
parent 165a47fe6a
commit 10b3d3c2a9
6 changed files with 17 additions and 2 deletions
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1
driver/camera.c
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@@ -884,6 +884,7 @@ esp_err_t camera_probe(const camera_config_t* config, camera_model_t* out_camera
return ESP_ERR_CAMERA_NOT_DETECTED;
}
s_state->sensor.slv_addr = slv_addr;
s_state->sensor.xclk_freq_hz = config->xclk_freq_hz;
//s_state->sensor.slv_addr = 0x30;
ESP_LOGD(TAG, "Detected camera at address=0x%02x", s_state->sensor.slv_addr);

2
driver/include/esp_camera.h
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@@ -94,7 +94,7 @@ typedef struct {
int pin_href; /*!< GPIO pin for camera HREF line */
int pin_pclk; /*!< GPIO pin for camera PCLK line */
int xclk_freq_hz; /*!< Frequency of XCLK signal, in Hz. Either 10KHz or 20KHz */
int xclk_freq_hz; /*!< Frequency of XCLK signal, in Hz. Either 20KHz or 10KHz for OV2640 double FPS (Experimental) */
ledc_timer_t ledc_timer; /*!< LEDC timer to be used for generating XCLK */
ledc_channel_t ledc_channel; /*!< LEDC channel to be used for generating XCLK */

1
driver/include/sensor.h
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@@ -86,6 +86,7 @@ typedef struct _sensor {
uint8_t slv_addr; // Sensor I2C slave address.
pixformat_t pixformat;
camera_status_t status;
int xclk_freq_hz;
// Sensor function pointers
int (*init_status) (sensor_t *sensor);