Can Bootloader Problem - No Open TX Buffers

[BKR]

Hi,

I'm using the microchip AN247 can bootloader in assembly with 2 PIC18F2480 and when I try to send a Can frame with the other PIC I get the "No Open TX Buffers" error from the can_debug...

I already tested the network with regular firmwares on both and I did get everything working well.

I guess is the baud rate that may be incorrect.

For the master (With Microchip Bit time Calculator):

Setup Criteria
Oscillator Frequency 32,000 MHz
Target CAN Bus Baud Rate 1,000 Mbps

Selected Options
BRP-1 (Baud Rate Prescaler) 1
Tq (Time Quanta) 125,000 ns
Number of Time Quanta 8
% Error of Target Baud Rate 0,0 %

Bit Timing Setup in Tq
Propagation Delay 1
Phase Segment 1 3
Phase Segment 2 3
Syncronization Jump Width (SJW) 1

////

And using the Microchip MAESTRO for the bootloader:

SSJ 1
Bit Rate Prescaler 1
WAKFIL Enabled
SEG1PH 3
SEG2PH 3
PRSEG 1
SAM 3x
ENDRHI Enabled
CANCAP Enabled

and everything else almost default.


Does anyone have any idea about what's going wrong?

Thanks!

I can post both codes if it is necessary...

[Guest]

Hi BKR

Are you find the solution ?

i am interested