["Re"-midification of Yamaha DX7S keybed]

Hi !

I already have a couple of STM32 boards and I'm wondering how hard would it be to connect a Yamaha keybed on it.

Thank you !

William

[Receiving from IIC]

Sorry...

I found how to send bytes on the I2C bus with the core32, but I don't get the interupt thing to receive bytes. How should I code a function to process data when they are received.

Thanks

[Receiving from IIC]

Hello

I read all the doc about IIC and I almost found everything I need to know about it... I just don't know exactly to receive and process data received from this port. Any idea ?

Thanks !

[Using COM / UART ports]

Hi !

I'm trying to find out how the UART ports works on the MIOS32 with STM32 core board. I mean... what pins I should use and is there any other information apart of the functions description on the wiki ?

Thanks !

Will

[How to modify DOUT for dimming contorl of led matrix?]

Does anyone finally got the TLC5940 working with the software ?

I've been looking all around and it seems that there's no further development in this way. Is there anyone reason ?

Will

[SRIO, DOUT, DIN, 16 bit , 8bit Confusion]

Ok thanks...

I'm currently scratching my head studying the Roland keybed matrix. Since I want to build the BEST 88 notes MIDI controller, I'm currently ordering a new Roland PHA III Ivory keybed (found in the V-Piano or RD700NX). The difference with Fatar (or maybe other keybeds) is that the 2 switches are not in the same position. The easiest way I can explain it is this:

Fatar = 2 switches (1 switch = note up, 1 switch = note down)

Roland = 2 switches (1 switch = note almost down, 1 switch = note down)

This mean that the IC must be REALLY fast to calculate the velocity. Does anyone have a clue on this ? What's the fastest delta (time between the 2 switches) the STM32 can compute ?

Will

Edit: You know it's a bit confusing. I don't have access to a Fatar keybed, but by looking to some pictures on the web, it looks that there's also 2 switches on the Fatar in the same position. Maybe I'm misunderstanding something...

[SRIO, DOUT, DIN, 16 bit , 8bit Confusion]

Hi !

I'm sorry, I don't want to hijack your thread, but I just want to be 100% I understand well.

Since DIN and DOUT modules have both 32 parallels inputs or outputs, this mean that this keyboard matrix would use half of those I/O (16x16). This mean I could easily add, let's say, 16 push buttons and 16 LEDs without any additional shift registers or modifications.

Could you confirm I'm right ?

Thank you !

William