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by WiFive
Fri Jan 31, 2020 9:29 pm
Forum: Hardware
Topic: Uart RX losing data when recieving data at high baud rates
Replies: 7
Views: 713

Re: Uart RX losing data when recieving data at high baud rates

You have to lower the threshold so the interrupt is triggered sooner with high data rates.
by WiFive
Sun Jan 26, 2020 9:26 am
Forum: ESP32 IDF
Topic: Ran out of IRAM, possible to repurpose SRAM/DRAM?
Replies: 3
Views: 407

Re: Ran out of IRAM, possible to repurpose SRAM/DRAM?

Technically yes sram1 can be used as iram but unsupported
by WiFive
Sun Jan 26, 2020 9:09 am
Forum: Hardware
Topic: PSRAM/SD card/PICO D4
Replies: 11
Views: 4370

Re: PSRAM/SD card/PICO D4

Try setting your CONFIG_SPIRAM_SIZE back to -1
by WiFive
Tue Jan 21, 2020 7:33 am
Forum: General Discussion
Topic: Static IP configuration
Replies: 1
Views: 327

Re: Static IP configuration

Mdns, reset button
by WiFive
Mon Jan 20, 2020 11:14 pm
Forum: General Discussion
Topic: Cant wake up from UART_NUM_1
Replies: 11
Views: 1319

Re: Cant wake up from UART_NUM_1

Did you set the mux for gpio9 to uart1 rx
by WiFive
Thu Jan 16, 2020 2:41 am
Forum: General Discussion
Topic: Using Bluetooth and Lora
Replies: 2
Views: 345

Re: Using Bluetooth and Lora

1. Yes
2. Yes, you have to follow usage policies if you are using lorawan but not with plain Lora.
by WiFive
Wed Jan 15, 2020 9:40 pm
Forum: General Discussion
Topic: Cant wake up from UART_NUM_1
Replies: 11
Views: 1319

Re: Cant wake up from UART_NUM_1

Gpio wakeup on rx would be faster anyway and the only advantage of uart wakeup is filtering glitches on rx line.
by WiFive
Wed Jan 15, 2020 9:35 pm
Forum: ESP32 IDF
Topic: efuse CHIP_PACKAGE different for WROOM-32U
Replies: 3
Views: 314

Re: efuse CHIP_PACKAGE different for WROOM-32U

No, I think you'd have to check the Mac address and be able to match it to a production batch assuming they are sequential.
by WiFive
Wed Jan 15, 2020 10:30 am
Forum: ESP32 IDF
Topic: efuse CHIP_PACKAGE different for WROOM-32U
Replies: 3
Views: 314

Re: efuse CHIP_PACKAGE different for WROOM-32U

Both D and U should use type 1 which is 5x5mm chip. Older wroom use type 0 which is 6x6mm chip. I don't think it is related to antenna.
by WiFive
Wed Jan 15, 2020 10:17 am
Forum: General Discussion
Topic: Cant wake up from UART_NUM_1
Replies: 11
Views: 1319

Re: Cant wake up from UART_NUM_1

You can only use gpio 3 for uart0 wakeup and gpio 9 for uart1 wakeup. Gpio 9 is usually connected to flash so unavailable. Otherwise just try using gpio wakeup on the RX pin.

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