89 lines
2 KiB
C
89 lines
2 KiB
C
#include <Board_ADC.h>
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#include <xmc_gpio.h>
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#include <xmc_can.h>
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#define TICKS_PER_SECOND 10
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#define LED1 P3_9
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// MCAN Node 2
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#define CAN_TXD P1_9
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#define CAN_RXD P1_8
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#define CAN_FREQUENCY 120000000
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/* CAN Bit time */
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const XMC_CAN_NODE_NOMINAL_BIT_TIME_CONFIG_t baud =
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{
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.can_frequency = CAN_FREQUENCY,
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.baudrate = 500000,
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.sample_point = 8000,
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.sjw = 1,
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};
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/* CAN message */
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XMC_CAN_MO_t CAN_message =
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{
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.can_mo_ptr = CAN_MO0,
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.can_priority = XMC_CAN_ARBITRATION_MODE_IDE_DIR_BASED_PRIO_2,
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.can_identifier = 0xff,
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.can_id_mask = 0xff,
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.can_id_mode = XMC_CAN_FRAME_TYPE_STANDARD_11BITS,
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.can_ide_mask = 1,
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.can_data_length = 2,
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.can_mo_type = XMC_CAN_MO_TYPE_TRANSMSGOBJ
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};
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void SysTick_Handler(void)
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{
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XMC_GPIO_ToggleOutput(LED1);
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ADC_StartConversion();
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while (ADC_ConversionDone() != 0);
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CAN_message.can_data_word[0] = ADC_GetValue();
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XMC_CAN_MO_UpdateData(&CAN_message);
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/* Send data in CAN_message */
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XMC_CAN_MO_Transmit(&CAN_message);
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}
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int main(void)
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{
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ADC_Initialize();
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/*Configure CAN Module*/
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XMC_CAN_Init(CAN, CAN_FREQUENCY);
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/*Configure CAN Node baudrate*/
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XMC_CAN_NODE_NominalBitTimeConfigure(CAN_NODE2, &baud);
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XMC_CAN_NODE_EnableConfigurationChange(CAN_NODE2);
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XMC_CAN_NODE_SetInitBit(CAN_NODE2);
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/* Configure CAN NODE input pin */
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XMC_GPIO_SetMode(CAN_RXD, XMC_GPIO_MODE_INPUT_TRISTATE);
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XMC_CAN_NODE_SetReceiveInput(CAN_NODE2, XMC_CAN_NODE_RECEIVE_INPUT_RXDCA);
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/*Message Configuration*/
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XMC_CAN_MO_Config(&CAN_message);
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/*Allocate MO in Node List*/
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XMC_CAN_AllocateMOtoNodeList(CAN, 2, 0);
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XMC_CAN_NODE_DisableConfigurationChange(CAN_NODE2);
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XMC_CAN_NODE_ResetInitBit(CAN_NODE2);
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/* Configure CAN NODE output pin */
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XMC_GPIO_SetMode(CAN_TXD, XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2);
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/* Configure LED pin */
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XMC_GPIO_SetMode(LED1, XMC_GPIO_MODE_OUTPUT_PUSH_PULL);
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/* Configure SysTick */
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SysTick_Config(SystemCoreClock / TICKS_PER_SECOND);
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while(1);
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}
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