TriCore TC27D ASC(UART)

HW: ShieldBuddy TC275

info

BaseFramework에는 Bsp가 기본 라이브러리로 제공되지 않습니다. BaseFramework를 프로젝트 시작으로 사용하는 경우 iLLD를 다운로드 받아 BaseSw를 교체해주시거나 필요한 라이브러리만 추가해주시기 바랍니다.

Related header

  • IfxAsclin_cfg.h: ASCLIN on-chip implementation data.
  • IfxAsclin_PinMap.h: ASCLIN I/O map.
  • IfxAsclin_Asc.h: ASCLIN ASC details.
  • IfxAsclin.h: ASCLIN basic functionality.

IfxAsclin_Asc.h

  • The ASC interface driver provides a default ASCLIN configuration for asynchronous serial communication in 8bit mode, and a set of data transfer routines.
  • Data transfers are buffered by the hardware based FIFOs, and in addition by software based FIFOs with a configurable size. Incoming and outgoing data is transfered in background from/to the ASCLIN peripheral by interrupt service handlers, which are part of this driver as well. This allows a nonblocking communication without stalling the thread(s) from where data is sent and received.

Examples

info

폴더를 새로 생성한 경우 clean projet 후, 다시 빌드해야 합니다.

0_Src/AppSw/Tricore/TC27D_lib/Config/Ifx_IntPrioDef.h를 만들고 아래와 같이 작성합니다.

#pragma once
#define IFX_INTPRIO_ASCLIN3_TX 1
#define IFX_INTPRIO_ASCLIN3_RX 2
#define IFX_INTPRIO_ASCLIN3_ER 3

Read/Write

#include "IfxAsclin_Asc.h"
#include "IfxAsclin_PinMap.h"
#include "IfxCpu.h"
#include "IfxCpu_Irq.h"
#include "IfxScuWdt.h"
#include "Ifx_IntPrioDef.h"
#include "Ifx_Types.h"
IfxCpu_syncEvent cpuSyncEvent = 0;
IfxAsclin_Asc asc;
#define ASC_TX_BUFFER_SIZE 64
static uint8 ascTxBuffer[ASC_TX_BUFFER_SIZE + sizeof(Ifx_Fifo) + 8];
#define ASC_RX_BUFFER_SIZE 64
static uint8 ascRxBuffer[ASC_RX_BUFFER_SIZE + sizeof(Ifx_Fifo) + 8];
IFX_INTERRUPT(asclin3TxISR, 0, IFX_INTPRIO_ASCLIN3_TX) {
IfxAsclin_Asc_isrTransmit(&asc);
}
IFX_INTERRUPT(asclin3RxISR, 0, IFX_INTPRIO_ASCLIN3_RX) {
IfxAsclin_Asc_isrReceive(&asc);
}
IFX_INTERRUPT(asclin3ErISR, 0, IFX_INTPRIO_ASCLIN3_ER) {
IfxAsclin_Asc_isrError(&asc);
}
void ASC3_init(uint32 baudrate) {
// create module config
IfxAsclin_Asc_Config ascConfig;
IfxAsclin_Asc_initModuleConfig(&ascConfig, &MODULE_ASCLIN3);
// set the desired baudrate
ascConfig.baudrate.prescaler = 1;
ascConfig.baudrate.baudrate
= baudrate; // FDR values will be calculated in initModule
// ISR priorities and interrupt target
ascConfig.interrupt.txPriority = IFX_INTPRIO_ASCLIN3_TX;
ascConfig.interrupt.rxPriority = IFX_INTPRIO_ASCLIN3_RX;
ascConfig.interrupt.erPriority = IFX_INTPRIO_ASCLIN3_ER;
ascConfig.interrupt.typeOfService
= IfxCpu_Irq_getTos(IfxCpu_getCoreIndex());
// FIFO configuration
ascConfig.txBuffer = &ascTxBuffer;
ascConfig.txBufferSize = ASC_TX_BUFFER_SIZE;
ascConfig.rxBuffer = &ascRxBuffer;
ascConfig.rxBufferSize = ASC_RX_BUFFER_SIZE;
// pin configuration
const IfxAsclin_Asc_Pins pins
= {NULL,
IfxPort_InputMode_pullUp, // CTS pin not used
&IfxAsclin3_RXD_P32_2_IN,
IfxPort_InputMode_pullUp, // Rx pin
NULL,
IfxPort_OutputMode_pushPull, // RTS pin not used
&IfxAsclin3_TX_P15_7_OUT,
IfxPort_OutputMode_pushPull, // Tx pin
IfxPort_PadDriver_cmosAutomotiveSpeed1};
ascConfig.pins = &pins;
IfxAsclin_Asc_initModule(&asc, &ascConfig);
}
int core0_main(void) {
IfxCpu_enableInterrupts();
/*
* !!WATCHDOG0 AND SAFETY WATCHDOG ARE DISABLED HERE!!
* Enable the watchdog in the demo if it is required and also service the
* watchdog periodically
* */
IfxScuWdt_disableCpuWatchdog(IfxScuWdt_getCpuWatchdogPassword());
IfxScuWdt_disableSafetyWatchdog(IfxScuWdt_getSafetyWatchdogPassword());
/* Cpu sync event wait*/
IfxCpu_emitEvent(&cpuSyncEvent);
IfxCpu_waitEvent(&cpuSyncEvent, 1);
ASC3_init(115200);
char * hello = "Hello\r\n";
Ifx_SizeT count = 7;
IfxAsclin_Asc_write(&asc, hello, &count, TIME_INFINITE);
while(1) {
if(IfxAsclin_Asc_getReadCount(&asc)) {
IfxAsclin_Asc_blockingWrite(&asc, IfxAsclin_Asc_blockingRead(&asc));
}
}
return 1;
}
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