Search found 7 matches
- Sun Aug 06, 2017 3:28 pm
- Forum: General Discussion
- Topic: Custom Bootloader
- Replies: 1
- Views: 4925
Custom Bootloader
Hi everyone. I'm new to the ESP32 and have a question about another game system I am creating. 4MB of flash is plenty for me, but I want to know if I can switch games via an sd card. So the sd card holds HEX files and then the ESP32 rerwites these hex files to the program flash so games can be switc...
- Tue Jun 13, 2017 11:15 pm
- Forum: General Discussion
- Topic: ESP 32 SPI DMA Questions
- Replies: 13
- Views: 24644
Re: ESP 32 SPI DMA Questions
Is 40 ms good for gaming
- Sat Jun 10, 2017 1:48 pm
- Forum: General Discussion
- Topic: ESP 32 SPI DMA Questions
- Replies: 13
- Views: 24644
Re: ESP 32 SPI DMA Questions
I read a topic in the PJRC forum where the Teensy 3.5 was able to do a 50HZ refresh rate. Is this also possible with the ESP32?
- Fri Jun 09, 2017 6:37 pm
- Forum: General Discussion
- Topic: ESP 32 SPI DMA Questions
- Replies: 13
- Views: 24644
Re: ESP 32 SPI DMA Questions
I'm not sure how you calculated 1.8 GHZ? The Teensy 3.5, which is less capable than the ESP32, can refresh the screen at a rate of at least 50 HZ via DMA. It takes the Teensy 1165 microseconds to fill the screen fully. Is this also possible with the ESP32?
- Fri Jun 09, 2017 6:36 pm
- Forum: General Discussion
- Topic: ESP 32 SPI DMA Questions
- Replies: 13
- Views: 24644
Re: ESP 32 SPI DMA Questions
I'm not sure how you calculated 1.8 GHZ? The Teensy 3.5, which is less capable than the ESP32, can refresh the screen at a rate of at least 50 HZ via DMA. It takes the Teensy 1165 microseconds to fill the screen fully. Is this also possible with the ESP32?
- Fri Jun 09, 2017 12:57 pm
- Forum: General Discussion
- Topic: ESP 32 SPI DMA Questions
- Replies: 13
- Views: 24644
Re: ESP 32 SPI DMA Questions
Not sure how you calculated 1.8GHZ? The Teensy 3.5 which is less capable than the ESP32 is able to fill the screen in 1165 microseconds using a DMA buffer (https://forum.pjrc.com/threads/36706-IL ... y-3-6-only). The ESP32 is not capable of doing this?
- Thu Jun 08, 2017 10:30 pm
- Forum: General Discussion
- Topic: ESP 32 SPI DMA Questions
- Replies: 13
- Views: 24644
ESP 32 SPI DMA Questions
So before I buy the ESP 32 I just want to confirm that I can use my ESP32 to interface with my ILI9341 LCD via SPI using a pixel data buffer transmitted to the SPI FIFO register by DMA. Is this possible with the ESP32? I need this for a gaming library by the way so I need the display to update quick...