CW CAN Bean for HC908AZ60
- From: "Luisfr15" <nospam@xxxxxxxxxx>
- Date: Thu, 29 Sep 2005 17:45:52 +0200
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Hello,
I'm (trying ...) developing an application with CAN Bean and I'm not
an expert of CAN ...
I set-up bit timing correctly (20uS) and I'm able to send messages
with SendFrame but seems that OnFullRxBuffer event is never invoked, even
OnReceiverErrorPassive/OnBusOff are never invoked, instead OnFreeTxBuffer is
called.
This is CAN init parameters:
void CAN1_Init(void)
{
/* CMCR0: ??=0,??=0,??=0,SYNCH=0,TLNKEN=0,SLPAK=0,SLPRQ=0,SFTRES=1 */
CMCR0 = 1; /* CAN reset */
/* CMCR1: ??=0,??=0,??=0,??=0,??=0,LOOPB=0,WUPM=0,CLKSRC=0 */
setReg8(CMCR1, 0);
/* CIDAC: IDAM1=0,IDAM0=0 */
clrReg8Bits(CIDAC, 48);
CIDAR0 = 0; /* Set the acceptance code, register CIDAR0 */
CIDAR1 = 0; /* Set the acceptance code, register CIDAR1 */
CIDAR2 = 0; /* Set the acceptance code, register CIDAR2 */
CIDAR3 = 0; /* Set the acceptance code, register CIDAR3 */
CIDMR0 = 0; /* Set the acceptance mask, register CIDMR0 */
CIDMR1 = 0; /* Set the acceptance mask, register CIDMR1 */
CIDMR2 = 0; /* Set the acceptance mask, register CIDMR2 */
CIDMR3 = 0; /* Set the acceptance mask, register CIDMR3 */
/* CBTR0: SJW1=1,SJW0=1,BRP5=0,BRP4=0,BRP3=0,BRP2=1,BRP1=0,BRP0=0 */
setReg8(CBTR0, 196);
/* CBTR1:
SAMP=1,TSEG22=1,TSEG21=0,TSEG20=1,TSEG13=1,TSEG12=1,TSEG11=0,TSEG10=0 */
setReg8(CBTR1, 220);
CMCR1_CLKSRC=0; /* Select the clock source */
CMCR0 &= ~1; /* Start the device */
/* CRIER:
WUPIE=0,RWRNIE=1,TWRNIE=1,RERRIE=1,TERRIE=1,BOFFIE=1,OVRIE=1,RXFIE=1 */
CRIER = 127; /* Enable interrupts */
}
RXFIE bit in CRIER reg is set so rx CAN interrupt is enabled,
acceptable mask is zero, so why is OnFullRxBuffer never called ... ?
I'm sending messages with CANalyzer but
Probably I'm doing many mistakes ...
I'm using CW 3.1 with PE 2.96.
Thanks a lof for any help.
Luigi
.
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