Search found 6 matches
- Sat May 04, 2019 5:19 am
- Forum: Showcase
- Topic: ESP32 real-time audio synthesis platform
- Replies: 1
- Views: 1623
ESP32 real-time audio synthesis platform
Hi, we've created an open source real-time audio synthesis hardware platform using the ESP32. It allows stereo audio IO at 44.1kHz-24bit and DSP processing using the ESP32 FPU of the audio stream. Buffer size is small enough to allow for latencies <1ms, e.g. reacting to a key press event. We have cr...
- Mon Nov 05, 2018 7:56 am
- Forum: Showcase
- Topic: ESP32 DSP Library
- Replies: 1
- Views: 2825
Re: ESP32 DSP Library
Hi, very nice! Have you looked into supporting integer algorithms? Possibly using the MAC16 from the ESP32?
Thanks!
Thanks!
- Sat Oct 06, 2018 10:33 am
- Forum: ESP32 IDF
- Topic: GCC stdfix fixed point math support
- Replies: 0
- Views: 576
GCC stdfix fixed point math support
Hi, I was wondering if fixed point support for the esp32 using gcc will be added. Currently, if one tries to use this gcc feature, the compiler responds with "error: fixed-point types not supported for this target". This would be very useful, when implementing DSP code. Example snippet: #include "st...
- Thu Oct 04, 2018 8:54 am
- Forum: Hardware
- Topic: Issue with Flashing WROVER Module CP2102N
- Replies: 1
- Views: 791
Issue with Flashing WROVER Module CP2102N
Hi, I have designed a PCB with a WROVER module and the SiliconLabs CP2102N with the option to use external power or USB power. I also use the SDCARD interface, where IO2 is in use. I adapted the USB circuitry from the WROVER dev board. When on external power I have frequently issues with flashing / ...
- Tue Oct 10, 2017 8:12 pm
- Forum: ESP32 IDF
- Topic: SD card fwrite large file issue
- Replies: 1
- Views: 1049
Re: SD card fwrite large file issue
The test above has been carried out with SPI mode.
Looking on the clk line it seems that the transaction eventually brakes down after a while, actually earlier than the reported 1023 blocks.
Am really puzzled, no clue what is happening, any help much appreciated;)
Looking on the clk line it seems that the transaction eventually brakes down after a while, actually earlier than the reported 1023 blocks.
Am really puzzled, no clue what is happening, any help much appreciated;)
- Sun Oct 08, 2017 5:10 pm
- Forum: ESP32 IDF
- Topic: SD card fwrite large file issue
- Replies: 1
- Views: 1049
SD card fwrite large file issue
When using fwrite on SD card write fails once file approaches 1Mbyte size, anyone has an idea? edit: I used SPI mode, today I checked the clock line, it seems that some blocks are transferred but eventually the transaction brakes down, possibly a DMA issue? char * buf= malloc(1024); bzero(buf, 1024)...