Hi ESP_Angus and ESP_houwenxiang, My driver are working now. Not the way i would like, but for now i think it's good. For 5 reasons i think the display driver is not great yet. I am very perfectionist, but perfectionism requires time and money, and i dont have money yet :). First reason: I would lik...

Does not have prompt delivery, but there is a data preview in the product links.

https://br.mouser.com/Search/Refine?Keyword=esp32+s2

If i disable the code below, the dma interrupt still occur, but the i2s transmitter not send any data by the physical port. In fact the first transmission works and the other transmissions don't work anymore, but the dma interrupt continues to occur. I reset esp32 chip by external reset button to ob...

Hello again, I would like to know if all i2s0 module interrupt sources registered and enabled enter in a single point only. Example: static void IRAM_ATTR i2s_isr ( ) // Single point entry for all i2s0 module interrupt sources registered and enabled ???? { if ( I2SX.int_st.out_eof ) { } if ( I2SX.in...

Hi, Below is a code snippet used to start a transmission on the i2s module using dma. My question is if i need to use these 3 commands within the i2s dma interrupt every time i start a new i2s/dma transmission. The problem is that when the dma interrupt occurs, the i2s transmitter still remains send...

Any suggestion will be much appreciated.

Thank's.

Now i saw that “lv_disp_flush_ready(&disp->driver)”, should not be called inside the isr because my goal is that the copy of the buffer and the filling of the dma descriptor are ready when starting the next dma transfer. I think that i must call “lv_disp_flush_ready(&disp->driver)” here: //copy of t...

Hi, I am working in a i2s parallel driver that will use lvgl hmi library, in 2 buffer mode. Each buffer can store 7680 pixels(1/20 display size). The i2s parallel driver at firt is working, but i want to put 2 buffer to work synchronously with dma interrupt ie: enable first buffer transfer with dma,...

Hi ESP_Angus, "Right, sorry I missed that. I checked with the peripheral teams, both fields need to be set: EOF=1 causes an EOF interrupt to be triggered when the descriptor is reached, but the DMA operation will continue until it reaches a field where the next descriptor pointer is NULL." Strange. ...

Hi ESP_Angus, "You're asking me if code you haven't written yet might have a problem?" I would like to know if i need or i dont need both "instructions" at the same time on last node of linked list: dma_desc_buf_a[ last node ].eof = 1; dma_desc_buf_a[ last node ].qe.stqe_next = ( lldesc_t* ) NULL; I...