Search found 5 matches

by nicolas
Wed Jul 05, 2017 1:48 am
Forum: Sample Code
Topic: ESP32-Doom available
Replies: 9
Views: 1939

Re: ESP32-Doom available

@Sprite: ok sorry, with the delay between writes to the same register, and the "nops" sequence, it looked very similar to the code examples previously provided as a workaround (I hope the bug has been fixed in the new revision though).
by nicolas
Mon Jul 03, 2017 11:15 pm
Forum: Sample Code
Topic: ESP32-Doom available
Replies: 9
Views: 1939

Re: ESP32-Doom available

In psxcontroller.c , I can see you still use some delay (with a series of nops in asm) between gpio writes as a workaround to prevent discarded writes in fast, subsequent accesses to the same register. (alternative register addresses were provided in the "ESP32 bugs and workarounds" docume...
by nicolas
Tue Jun 20, 2017 10:06 am
Forum: ESP32 SDK
Topic: ESPUSB32 Full-speed USB Approach
Replies: 11
Views: 1090

Re: ESPUSB32 Full-speed USB Approach

Thanks for your consideration Sprite, and we know that cnlohr is not kidding at all : he just needs another carrier for TV transmission (or GSM, GPS, fibre channel, VR lighthouses or whatever) so while you're at it, for the same price, make it 10 x I2S, please ! with dedicated CPU cores, and a recon...
by nicolas
Sat Jun 17, 2017 6:25 pm
Forum: ESP32 SDK
Topic: ESPUSB32 Full-speed USB Approach
Replies: 11
Views: 1090

Re: ESPUSB32 Full-speed USB Approach

@Franco : for your and other readers' information, Cnlohr already did his own share of reverse-engineering to implement a working, bit-banged "usb device" on ESP8266 with GPIO code in assembly and clever tricks (but even pushing it to the limits, hardware latencies prevented full-speed usb...
by nicolas
Fri Sep 09, 2016 1:45 am
Forum: General Discussion
Topic: I2S details
Replies: 7
Views: 3679

Re: I2S details

Now that ESP32 is out, maybe you could tell us more now. Some new I2S functionnalities are mentionned in the datasheet (like BT PCM), but besides audio applications, I was wondering about I2S ports max "bit-bang" capabilities as very-high-speed serial inputs/outputs ... For it's "TV-b...

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