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Tautvydas Belgeras 2018-06-05 16:16:17 +03:00
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52
project/realtek_amebaz_va0_example/example_sources/i2c/src/Makefile Normal file
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include $(MAKE_INCLUDE_GEN)
#include ./Makefile.inc
.PHONY: all clean
CHIP = rtl8195a
HALINCDIR = realtek/v3_0/include
MODULE_IFLAGS += -I$(shell pwd -L)/../inc
MODULE_IFLAGS += -I$(SWLIBDIR)/api
MODULE_IFLAGS += -I$(SWLIBDIR)/api/mbed/hal/
MODULE_IFLAGS += -I$(SWLIBDIR)/api/mbed/api/
MODULE_IFLAGS += -I$(SWLIBDIR)/drivers/targets/cmsis/rtl8195a/
MODULE_IFLAGS += -I$(SWLIBDIR)/drivers/targets/hal/rtl8195a/
GLOBAL_CFLAGS += -DCONFIG_PLATFORM_8195A
#*****************************************************************************#
# Source FILE LIST #
#*****************************************************************************#
CSRC += main.c
#*****************************************************************************#
# Object FILE LIST #
#*****************************************************************************#
OBJS = $(CSRC:.c=.o)
#*****************************************************************************#
# Object FILE LIST #
#*****************************************************************************#
#OBJS = monitor.o rtl_consol.o
#*****************************************************************************#
# RULES TO GENERATE TARGETS #
#*****************************************************************************#
# Define the Rules to build the core targets
all: CORE_TARGETS COPY_RAM_OBJS
#*****************************************************************************#
# GENERATE OBJECT FILE
#*****************************************************************************#
CORE_TARGETS: $(OBJS)
#*****************************************************************************#
# GENERATE OBJECT FILE
#*****************************************************************************#
clean:
rm -f $(CSRC:.c=.o) $(CSRC:.c=.d) $(CSRC:.c=.i) $(CSRC:.c=.s)

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project/realtek_amebaz_va0_example/example_sources/i2c/src/main.c Normal file
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/*
* Routines to access hardware
*
* Copyright (c) 2013 Realtek Semiconductor Corp.
*
* This module is a confidential and proprietary property of RealTek and
* possession or use of this module requires written permission of RealTek.
*/
#include "PinNames.h"
#include "basic_types.h"
#include "diag.h"
#include "i2c_api.h"
#include "pinmap.h"
/*I2C pin location:
* I2C0:
* - S0: PA_1(SCL)/PA_4(SDA).
* - S1: PA_22(SCL)/PA_19(SDA).
* - S2: PA_29(SCL)/PA_30(SDA).
*
* I2C1:
* - S0: PA_3(SCL)/PA_2(SDA).
* - S1: PA_18(SCL)/PA_23(SDA).
* - S2: PA_28(SCL)/PA_27(SDA).
*/
//I2C1_SEL S1
#define MBED_I2C_MTR_SDA PA_23
#define MBED_I2C_MTR_SCL PA_18
//I2C0_SEL S1
#define MBED_I2C_SLV_SDA PA_19
#define MBED_I2C_SLV_SCL PA_22
#define MBED_I2C_SLAVE_ADDR0 0xAA
#define MBED_I2C_BUS_CLK 100000 //hz
#define I2C_DATA_LENGTH 32
uint8_t i2cdatasrc[I2C_DATA_LENGTH];
uint8_t i2cdatadst[I2C_DATA_LENGTH];
SemaphoreHandle_t I2CRxSema; // RX begin
i2c_t i2cmaster;
i2c_t i2cslave;
void slave_tx_thread(void)
{
while (1) {
xSemaphoreTake(I2CRxSema, portMAX_DELAY);
i2c_slave_write(&i2cslave,&i2cdatasrc[0],I2C_DATA_LENGTH);
DBG_8195A("slave write done\r\n");
}
vTaskDelete(NULL);
}
void i2c_demo(void)
{
int send_times = 0;
int i2clocalcnt;
int result = 0;
i2c_init(&i2cmaster, MBED_I2C_MTR_SDA ,MBED_I2C_MTR_SCL);
i2c_frequency(&i2cmaster,MBED_I2C_BUS_CLK);
i2c_init(&i2cslave, MBED_I2C_SLV_SDA ,MBED_I2C_SLV_SCL);
i2c_frequency(&i2cslave,MBED_I2C_BUS_CLK);
i2c_slave_address(&i2cslave, 0, MBED_I2C_SLAVE_ADDR0, 0xFF);
i2c_slave_mode(&i2cslave, 1);
for (i2clocalcnt=0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt++){
i2cdatasrc[i2clocalcnt] = i2clocalcnt+1;
}
for (send_times = 0; send_times < 10; send_times++) {
i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &i2cdatasrc[0], I2C_DATA_LENGTH, 1);
DBG_8195A("master write...\n");
if (i2c_slave_receive(&i2cslave) == 3) {
i2c_slave_read(&i2cslave, &i2cdatadst[0], I2C_DATA_LENGTH);
}
DBG_8195A("show slave received data\n");
for (i2clocalcnt = 0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt+=2) {
DBG_8195A("i2c data: %02x \t %02x\n",i2cdatadst[i2clocalcnt],i2cdatadst[i2clocalcnt+1]);
}
// verify result
result = 1;
for (i2clocalcnt = 0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt++) {
if (i2cdatasrc[i2clocalcnt] != i2cdatadst[i2clocalcnt]) {
result = 0;
break;
}
}
DBG_8195A("\r\nResult is %s\r\n", (result) ? "success" : "fail");
}
// Create semaphore for i2c slave RX
I2CRxSema = xSemaphoreCreateBinary();
if(xTaskCreate((TaskFunction_t)slave_tx_thread, ((const char*)"slave_tx_thread"), (256>>2), (void *const)&i2cslave, tskIDLE_PRIORITY + 1, NULL) != pdPASS) {
DBG_8195A("xTaskCreate(slave_tx_thread) failed\r\n");
}
for (send_times = 0; send_times < 10; send_times++) {
DBG_8195A("master read...\n");
xSemaphoreGive(I2CRxSema);
i2c_read(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &i2cdatadst[0], I2C_DATA_LENGTH, 1);
DBG_8195A("show master received data\n");
for (i2clocalcnt = 0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt+=2) {
DBG_8195A("i2c data: %02x \t %02x\n",i2cdatadst[i2clocalcnt],i2cdatadst[i2clocalcnt+1]);
}
// verify result
result = 1;
for (i2clocalcnt = 0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt++) {
if (i2cdatasrc[i2clocalcnt] != i2cdatadst[i2clocalcnt]) {
result = 0;
break;
}
}
DBG_8195A("\r\nResult is %s\r\n", (result) ? "success" : "fail");
}
while(1){;}
}
void main(void)
{
// create demo Task
if(xTaskCreate( (TaskFunction_t)i2c_demo, "I2C DEMO", (2048/4), (void *)&i2cmaster, (tskIDLE_PRIORITY + 1), NULL)!= pdPASS) {
DBG_8195A("Cannot create I2C demo task\n\r");
goto end_demo;
}
#if defined(CONFIG_KERNEL) && !TASK_SCHEDULER_DISABLED
#ifdef PLATFORM_FREERTOS
vTaskStartScheduler();
#endif
#else
#error !!!Need FREERTOS!!!
#endif
end_demo:
while(1);
}