Search found 23 matches

by whoyoume
Sun Jul 12, 2020 11:43 am
Forum: Hardware
Topic: Detailed specification of MIPI CSI
Replies: 4
Views: 4707

Re: Detailed specification of MIPI CSI

Thank you for your replies so far.

I think there would appear low cost chip for that purpose.

Best regards,
whoyoume
by whoyoume
Sat Jul 11, 2020 9:58 pm
Forum: Hardware
Topic: Detailed specification of MIPI CSI
Replies: 4
Views: 4707

Re: Detailed specification of MIPI CSI

Thank you for your reply.

Could you please show me if I get a chip or a device for that purpose?
And where?

I would like to get cheap one, because a price of the camera module is cheap.

Thank you.
by whoyoume
Thu Jul 09, 2020 12:00 pm
Forum: Hardware
Topic: Detailed specification of MIPI CSI
Replies: 4
Views: 4707

Detailed specification of MIPI CSI

Hello,

Could anybody please show me detailed specification of MIPI CSI?
I would like to create a bridge interface between a camera module and MPU.

Thank you.
by whoyoume
Sat Jun 20, 2020 5:16 am
Forum: Hardware
Topic: Highest clock by GPIO
Replies: 1
Views: 2087

Highest clock by GPIO

Hello, Using ESP32, I generate a clock of 9.9MHz by a code as below. Could anyone please show me if it would be the highest clock? and, if it would be constantly. I afraid there would be jitter or deficiency, but I could not check it because I have not logger for so that long period. Thank you. // E...
by whoyoume
Sat Jul 27, 2019 4:38 am
Forum: General Discussion
Topic: WiFi connection breaks off once per around minute
Replies: 5
Views: 5223

Re: WiFi connection breaks off once per around minute

SOLVED (maybe)

It seems that it was caused by WiFi client. I used windows PC as WiFi client, in which there were two WiFi application. After deleting one of these, no break occurs.

Thank you.
by whoyoume
Sun Jul 21, 2019 6:09 am
Forum: General Discussion
Topic: WiFi connection breaks off once per around minute
Replies: 5
Views: 5223

Re: WiFi connection breaks off once per around minute

Oh, I made mistake. The code is as below. Thank you. static void wifi_event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data) { if (event_id == WIFI_EVENT_AP_STACONNECTED) { wifi_event_ap_staconnected_t* event = (wifi_event_ap_staconnected_t*) event_data; ESP_LOGI(T...
by whoyoume
Thu Jul 18, 2019 1:58 pm
Forum: General Discussion
Topic: WiFi connection breaks off once per around minute
Replies: 5
Views: 5223

Re: WiFi connection breaks off once per around minute

Thank you for your reply. Below is source code and log. Any advice would be appreciated. Thank you. void wifi_init_softap() { s_wifi_event_group = xEventGroupCreate(); tcpip_adapter_init(); ESP_ERROR_CHECK(esp_event_loop_create_default()); wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT(); ESP_ER...
by whoyoume
Wed Jul 17, 2019 2:34 pm
Forum: General Discussion
Topic: WiFi connection breaks off once per around minute
Replies: 5
Views: 5223

WiFi connection breaks off once per around minute

Hello people,

I am facing a trouble that a WiFi connection between PC and ESP32 breaks off once per around minute.

ESP32 is working as access point. Just after disconnection, PC connects automatically again.

Could anybody tell me how to avoid this trouble?

Thank you.
by whoyoume
Tue Jul 16, 2019 5:54 pm
Forum: General Discussion
Topic: Fastest clock generated by GPIO
Replies: 3
Views: 4014

Re: Fastest clock generated by GPIO

Thank you for your advice. I've got 9.908MHz.
by whoyoume
Mon Jul 15, 2019 2:10 am
Forum: General Discussion
Topic: Fastest clock generated by GPIO
Replies: 3
Views: 4014

Fastest clock generated by GPIO

Hello people, I think a clock 2.66MHz would be too slow which is generated by a code shown below, under the condition of 240MHz CPU. Q1. Is it too slow? Q2. If so, could anybody show source code for faster? Thank you. void test(void) { gpio_set_direction(22, GPIO_MODE_OUTPUT); gpio_set_direction(23,...