i am currently evaluating some PIC32MM devices.
For a Testproject, i want to control some SK6812 - LED (wich are WS2812 compatible).
Those require a strict timing. I use the SPI of the PIC, using a 8MHz Clock (using the PLL for 16MHz system clock). In theory, it is possible to achive the WS2812 timing.

I got a small SPI Problem there:
I can achive the timing only, if i use the SPI in 32bit-Mode. In 8bit or 16 bit-mode, i get constant "pauses" between two transfers.
See attached picture. For the picture, i am constantly writing 8bit 0xAA. Channel1 is data, Channel2 is clock.

The main loop consists of [code] LATBbits.LATB2 = 1; SPI2_RXTX_EBUF_8bit(0xAA); LATBbits.LATB2 = 0;[/code] Thats all. I use the Port B2 for timing tests.

My SPISettomgs: [code] //init SPI SPI2CON = SPI2CON2 = 0; SPI2CONbits.MODE16 = 0; //1 for 16bit mode SPI2CONbits.MODE32 = 0; //1 for 32bit mode SPI2CONbits.CKE = 0; SPI2CONbits.CKP = 1; SPI2CONbits.ENHBUF = 1; set->Baudrate = SPI2_Setbaud(set->Baudrate, pCLK); SPI2CONbits.MSTEN = 1; SPI2STATbits.SPIROV = 0; SPI2CONbits.ON = 1;[/code] I use the following for transfer: [code]inline uint8_t SPI2_RXTX_EBUF_8bit(uint8_t data){ while(SPI2STATbits.SPITBF); SPI2BUF = data; return SPI2BUF; }[/code] Tools:
- XC32 v 1.4
- MPLABX 3.51
- PICkit 3 (also for power)

The SPI-Code works fine on a PIC32MX470 and PIC32MX250. I dont remember any pauses from previous projects with PIC32 MX devices.

What am I doing wrong here?
Thanks for any help in advance! Small Bio