CP2104-F03-GMR device descriptor request failed
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Hi guys,
I have made a custom PCB with CP2104 USB TO UART Bridge. You can find the schematics realted to the USB below. After getting the PCB fabricated, when I plug into my computer it is showing as Device not recognized - Device Descriptor request failed. I tried lot of methods but no luck. Uninstalled the drivers using the instructions suggested in this thread . But nothing worked and i am using a Windows 10 PC. Please help me out with a correct solution.
The board is powering up properly. please someone suggest me a work-around...!! Thanks
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Hi @kowshik1729 , The connection between the CP2104 and ESP01 seems looks ok, can you share a more clear picture of the Automatic IO, EN toggling Circuit. Also double-check the trace continuity with a multimeter too.
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@salmanfaris oh no....the UART Bridge is not for the ESP-01. There is an ESP32-Wroom SoC, and yeah I shall share more info.
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@kowshik1729 Okey, I come with conclusion from the right bottom side esp01.
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@kowshik1729 Did you solve the issue?
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Not yet @salmanfaris .
Recent Posts
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Thanks for sharing @rafitc99 . Glad to know that it was solved.
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BaseType_t xQueueSendFromISR ( QueueHandle_t xQueue, const void *pvItemToQueue, BaseType_t *pxHigherPriorityTaskWoken );I was trying to pass a pointer. That was the issue.
Reference -
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I'm trying to pass a value into Queue from Interrupt Service Routine(ISR) using xQueueSendFromISR() <-- Reference
But I'm getting this error and ESP restart immediately.
Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled. Core 0 register dump: PC : 0x4021227c PS : 0x00000033 A0 : 0x4021c72e A1 : 0x3ffe8220Here is the gpio interrupt example which I'm following.
Here is my code. I did some modification in this.
Check 70th line of this location.
static void main_power_isr_handler(void* arg) { xQueueHandle* main_q = (xQueueHandle*)arg; static main_q_payload_t msg; msg.hdr = E_MAIN_MSG_MAIN_POWER_STATUS; msg.bool_payload = gpio_get_level(GPIO_MAIN_POWER); //ets_printf("Someone Interrupted \n "); xQueueSendFromISR(main_q, &msg, NULL); //!!! THIS LINE } -
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