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I was wrong. The compiler does take care of timing after change frequency in #use delay(). Thanks.

PCM,
Your are right about this. However, the compiler does not take care timing. If I want to delay 100ms, I have to write 'delay_ms(400)'.

Thanks!!

I enabled PLL in #fuses and changed baudrate to 28800 in #use rs232 since frequency is 4 times faster, now uart interrupt is working very well with the actual 115200 baudrate.

I think that it's too late to change crystal. Is it okay to enable 4xPLL in #fuse?

I tried Ex_Sisr.c example, and it acts the same way. However, there is a good news that it works fine with my test code and example code if I use the other baudrates instead of 115200. Could anyone ...

I already tried this method, it works. However, Interrupt method does not work well.

The below is my new test code; the result is not good. It receives the first 8 bytes correctly; 9th and 10th bytes are incorrect, the rest of packet is not received.

#use delay(clock=3686400, ...

I deleted setup_spi(), setup_timer_1() and receive_packet(). Now I read uart interrupt buffer directly through ICD2 debugger. The result is same.

Hi,
Now I have a new issue with UART. If I use polling method, it has no problem to receive a whole packet, but if I use interrupt, it receives 8 bytes data correctly, the 9th and 10th bytes ar ...

It still does not work after adding setup_adc(ADC_OFF) before the while loop.

Which register does allow me to turn off the analog function on RB5? Thanks.

The compiler is 4.099. I am going to try dyeatman's suggestion.

Hi,
The original MCU was PIC16F689 on my PCB, it worked very well. Since my project needs more memory, I replaced it to PIC18F14K22 without any external circuits changes. Now, I have no proble ...

PCM,
Thanks. You are right, the latest version of MPLAB, 8.20a has this option for PicKit2.
I have one more question about read data eeprom. Does it need to add delay between reading eac ...

But I am using PICKit2 instead of ICD2. I do not see the option of preserve EEPROM data.

Thanks.