Post by thread:16F876, SSPSTAT(CKE) bit cannot be changed?

Hi PIClisters, I was trying to configure the SPI mode in a 16F876 in MPLAB. I set the bank properly(Bank1). Then said - BSF SSPSTAT,CKE / BSF SSPSTAT,6. But the CKE bit does not get set when I am running the program under MPSIM. I use MPLAB 4.12.00 . I also tried setting the SSPCON (Bank0) before/ after configuring the SSPSTAT. In either way, the CKE bit is not set in SSPSTAT. Have you experienced such problems before? If so, is it a problem with MPLAB or with the device? Thanks and Regards, Somasundaram Meiyappan. ** Snippet No.1 bsf STATUS,RP0 bsf SSPSTAT,CKE bcf STATUS,RP0 movlw 0x22 movwf SSPCON ** Snippet No.2 bcf STATUS,RP0 movlw 0x22 movwf SSPCON bsf STATUS,RP0 bsf SSPSTAT,6 ** Snippet No.3 bsf STATUS,RP0 movlw 0x40 movwf SSPSTAT ; Pls. note that Bits 0-5 are read only in SSPSTAT bcf STATUS,RP0 movlw 0x22 movwf SSPCON All the codes above did not set CKE. But the SSPCON register is being changed by all the codes.

MPLAB and the simulator under windows at least - doesn't support much really. I doen't support the serial port in any of ot's modes, it doesn't support the A/D functions, it doesn't support PWM, CCP or a whole load of other things. On the 12 series PICs, it doesn't support much in the way of GPIO either, like the pin GP3/MCLR and stuff You could try 4.99.07 from the microchip website, this claims to support more peripheral functions, I know that they said it supported the GPIO port on the 12 series better, but I found that version perpetually crashed on my system, especially when saving a project. Personally, I'm hanging on for version 5.00, due out within a fortnght. regards, Kevin {Original Message removed}

I'm having the exact same problem with the 16F877. I've posted about this problem before (in this list and also in alt.microcontrollers.8bit, comp.arch.embedded, MicroChip PicMicro Discussion Group and directly to MicroChip tech support) but so far no answer?!?! I've noticed that recompiling the same code to other similar chips such as the 16C67 and 16C77 in MPLAB does allow the SSPSTAT<6> (CKE) bit to be changed. So it would seem that even if the chips (16F876 and 16F877) probably do support the CKE bit, MPLAB's chip definitions for these same chips don't... Hello ? MicroChip ? Anybody home ? T.H.