/********************************************************************************************************
* @file app_map.c
*
* @brief This is the source file for Telink MCU
*
*
@author Driver Group
* @date 2018
*
* @par Copyright (c) 2018, Telink Semiconductor (Shanghai) Co., Ltd. ("TELINK")
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
http://www.apache.org/licenses/LICENSE-2.0 *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*******************************************************************************************************/
#include "app_config.h"
#if(I2C_MODE == I2C_MAPPING_MODE)
#define I2C_MASTER_DEVICE 1 //i2c master demo
#define I2C_SLAVE_DEVICE 2 //i2c slave demo
#define I2C_DEVICE 2
#define BUFF_DATA_LEN 64
#define I2C_CLK_SPEED 200000
volatile unsigned char i2c_tx_buff[BUFF_DATA_LEN] = {0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff};
volatile unsigned char i2c_rx_buff[BUFF_DATA_LEN] = {0};
__attribute__((aligned(128))) unsigned char i2c_slave_mapping_buff[128] = {0};
volatile int irq_cnt = 0;
volatile int i2c_read_cnt = 0;
volatile int i2c_write_cnt = 0;
volatile int i2c_event = 0;
void user_init(void)
{
sleep_ms(2000);
//1.init the LED pin,for indication
gpio_set_func(LED1 ,AS_GPIO);
gpio_set_output_en(LED1, 1); //enable output
gpio_set_input_en(LED1 ,0); //disable input
gpio_write(LED1, 0); //LED Off
gpio_set_func(LED2 ,AS_GPIO);
gpio_set_output_en(LED2, 1); //enable output
gpio_set_input_en(LED2 ,0); //disable input
gpio_write(LED2, 1); //LED On
#if(MCU_CORE_B87||MCU_CORE_B89||MCU_CORE_B80 || MCU_CORE_B80B || MCU_CORE_TC321X)
i2c_gpio_set(I2C_GPIO_SDA,I2C_GPIO_SCL);
#elif(MCU_CORE_B85)
i2c_gpio_set(I2C_GPIO_SDA_SCL);
#endif
#if(I2C_DEVICE == I2C_MASTER_DEVICE)
i2c_master_init(0x5C, (unsigned char)(CLOCK_SYS_CLOCK_HZ/(4*I2C_CLK_SPEED)) ); // 200KHz
#elif(I2C_DEVICE == I2C_SLAVE_DEVICE)
memset(i2c_slave_mapping_buff, 0xde, sizeof(i2c_slave_mapping_buff));
i2c_slave_init(0x5C, I2C_SLAVE_MAP, (unsigned char *)i2c_slave_mapping_buff + 64);
irq_set_mask(FLD_IRQ_MIX_CMD_EN);
irq_enable();
#endif
}
void dump_data(const void *data, int len)
{
const uint8_t *p = data;
while (len--)
printf("%x", *p++);
printf("\n");
}
void main_loop (void)
{
#if(I2C_DEVICE == I2C_MASTER_DEVICE)
sleep_ms(500);
i2c_tx_buff[0]++;
i2c_write_series(0,0,(unsigned char*)i2c_tx_buff, BUFF_DATA_LEN);
sleep_ms(500);
i2c_read_series(0,0,(unsigned char*)i2c_rx_buff, BUFF_DATA_LEN);
gpio_toggle(LED1);
#endif
if (i2c_event)
{
i2c_event = 0;
printf("%d: i2c_read_cnt=%d, i2c_write_cnt=%d\n", clock_time(), i2c_read_cnt, i2c_write_cnt);
dump_data(i2c_slave_mapping_buff, sizeof(i2c_slave_mapping_buff));
}
}
/**
* @brief This function serves to handle the interrupt of MCU
* @param[in] none
* @return none
*/
_attribute_ram_code_sec_noinline_ void irq_handler(void)
{
irq_cnt ++;
unsigned char irq_status = i2c_get_interrupt_status(FLD_HOST_CMD_IRQ|FLD_HOST_READ_IRQ);
if(irq_status & FLD_HOST_CMD_IRQ)
{
i2c_clear_interrupt_status(FLD_HOST_CMD_IRQ|FLD_HOST_READ_IRQ);//clear all irq status
if(irq_status & FLD_HOST_READ_IRQ)
{
i2c_read_cnt ++;
gpio_toggle(LED1);
}
else
{
i2c_write_cnt ++;
gpio_toggle(LED2);
}
i2c_event = 1;
}
}
#endif
