VSDSP Forum

What is the CVDD voltage and the value of CLOCKF you are using?

Check that the vs1063a RX pin isn't floating, because it could cause a jump to a ROM monitor in the middle of the encoding.

Also see that the xTEST pin is pulled high or connected to IOVDD.

vs1003b and vs1063a use a different manufacturing process, their specifications differ. Also the CLOCKF register settings differ slightly. In vs1003b SCI_CLOCKF 0xe000 is 4.5x. 4.5x 12.288MHz = 55.3MHz is over the 52MHz maximum specification for vs1003b. In vs1053a SCI_CLOCKF 0xe000 is 5.0x. 5.0x 12...

1. The grounds are connected inside the chip, but you should connect analog and digital grounds below the vs1003 to avoid ground currents going through the IC. (I.e. design with separate analog and digital grounds, then connect them with 0-ohm traces below the IC.) 2. 10uF is for "fast" and 100nF fo...

Which pins are used by/for the debugger? Which pins are connected to the vs1063a?

The .plg file is standard C and can be #included in your .c file. Having vs1053b-patches-flac.plg in the same directory as your player1053.c should work most of the time.

You can import the whole file into your source file if nothing else works.

then use the vs1053b for this project would be a waste of time for the problems that would be generated when using it with an SD CARD module, is it correct? As I see it, I listed design considerations, not problems. If you use SD cards, you need to take into account things that are relevant when us...

The list is for vs1053 and when working with SD cards in general.

Also make sure you have good enough powering for the SD card. New cards can draw a lot of power.

1a. The output swing is around the RCAP voltage, yes. 2. I don't see what vs1003 maximum has to do with your amplifier output maximum. I assumed 2.8V was the limit of the amp due to its power supply. Once the signal is out of vs1003, 2x RCAP is no longer a limit. 3. The actual RCAP voltage we tend t...

If it's all the same to you, I would recommend vs1063a, it has a slightly faster HE-AAC decoder. - vs10xx has no access to PSRAM, it can only use what's internal. - It is highly recommended to have pull-down on GPIO1 - vs1053b has a real-time MIDI mode, which gets activated on boot if GPIO0 is low a...

1a. 1.3Vpp to 1.7Vpp is the test limits for the analog swing with maximum (generated) digital signal. The actual level depends on the actual RCAP voltage (varies slightly depending on the individual chip and ambient temperature), and the load at the output. The actual level of a decoded signal also ...