Posted on May 17, 2011 at 13:16I want to process the CPU at 8 Mhz. I encountered no problems till that value (it works fine at 64 and 16 mhz values) when i try 8 Mhz, CAN bus couldnt carry info. by the way, does it help if i set the prescaler as 0. what does it mean? i found no info about 0 prescaler in the manual. how i can get rid of this problem? thanks and regards..
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK/2 */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div1);
/* PLLCLK = 4MHz * 4 = 16 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_4);
// can regulations:
CAN_InitStructure.CAN_SJW=CAN_SJW_1tq; //1
CAN_InitStructure.CAN_BS1=CAN_BS1_8tq; //8
CAN_InitStructure.CAN_BS2=CAN_BS2_7tq; //7
CAN_InitStructure.CAN_Prescaler=1;
