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  • Sandro's Avatar
    01-09-2020, 07:36 PM
    A bad mistake I did here... i had connected the flash chip GND pin to Analog GND... shame on me. Anyway, now the small PCB is done; i'm testing it, seems working fine.
    23 replies | 667 view(s)
  • Sandro's Avatar
    12-24-2019, 06:18 PM
    Good, thank you Neurofun. I'm designing a small pcb for the W25Q256, with a groudplane, to be soldered toghether with the Audio shield (on top, or below) ... let's see how it will perform.
    23 replies | 667 view(s)
  • Sandro's Avatar
    12-24-2019, 12:08 PM
    Going back to W25Q256.. I read on Audio shield schematics (where an 8-pin flash memory IC is contemplated), that "RST" is indicated. While on 8pin ICs (like W25Q128) /RESET and /HOLD use the same pin, on W25Q256...
    23 replies | 667 view(s)
  • Sandro's Avatar
    12-20-2019, 10:00 PM
    I got it...Ok, thank you Frank for the explantion!
    23 replies | 667 view(s)
  • Sandro's Avatar
    12-20-2019, 10:22 AM
    For completeness: after formatting, using normal speed playback, the report shows more or less same values and same behave: 0 218 1 7 2 217 3 7 4 2143 5 7 6 217 7 7 8 217
    23 replies | 667 view(s)
  • Sandro's Avatar
    12-20-2019, 12:54 AM
    Hi Paul, thank you for your answer; I started adding some lines in order to get min, max and average times, and the result was so strange (for me!), that I decided to see each value; this is my code, normal speed...
    23 replies | 667 view(s)
  • Sandro's Avatar
    12-18-2019, 11:26 PM
    I'm playing with playSDraw using an SD card plugged in Teensy 3.6 built-in socket. The scope is to use the built-in SD card in place of flash memory in my midi expander, since the quad SPI could be fast enough to allow...
    1 replies | 163 view(s)
  • Sandro's Avatar
    12-18-2019, 01:09 PM
    Hi Michael, I made some tests with micro SD built on Teensy 3.6, clock 180 MHz; I played with play_SD_raw, modifying the lenght of the data array read from SD, as follows. The "core" part of play_SD_raw.cpp, a bit...
    23 replies | 667 view(s)
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About Sandro

Basic Information

About Sandro
Biography:
Electronic Engineer
Location:
Rimini - Italy
Interests:
music, play music, make instruments, swim, walk, see, listen, talk
Occupation:
Project manager

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Using W25Q256 on Audio shield 01-09-2020 07:36 PM
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01-10-2020 03:49 PM
Join Date
11-08-2016