Hi All,
I'm using an Gen4 Ulcd 70DT-AR that will be connected to a custom board with Atmega2560 (Arduino Code), and controlled by Uart. In this board I fitted an audio amplifier to be able to play wav sounds (like button click, alarms etc), before trying to connect the uLcd to my board I tried with GFX command and gen4-PA adapter to simulate all my object.
Hooking a scope to Audio and Audio enable pins on gen4-PA I notice two strange behaviour, the first is that i have a lot of PWM spike even if the object Sound0 is in STOP , and also the Audio Enable pin start low ,but on first hit of play a file it go 3v3 and never go back to 0V, even on STOP or PAUSE.
I tried two different uLcd display with same results.
Do I have to set something special to enable the external audio ?
Thanks
Flavio
I'm using an Gen4 Ulcd 70DT-AR that will be connected to a custom board with Atmega2560 (Arduino Code), and controlled by Uart. In this board I fitted an audio amplifier to be able to play wav sounds (like button click, alarms etc), before trying to connect the uLcd to my board I tried with GFX command and gen4-PA adapter to simulate all my object.
Hooking a scope to Audio and Audio enable pins on gen4-PA I notice two strange behaviour, the first is that i have a lot of PWM spike even if the object Sound0 is in STOP , and also the Audio Enable pin start low ,but on first hit of play a file it go 3v3 and never go back to 0V, even on STOP or PAUSE.
I tried two different uLcd display with same results.
Do I have to set something special to enable the external audio ?
Thanks
Flavio
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