mirror of
https://github.com/jialexd/sdk-ameba-v4.0c_180328.git
synced 2024-11-23 22:44:19 +00:00
166 lines
4 KiB
C
Executable file
166 lines
4 KiB
C
Executable file
#include <platform_opts.h>
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#include "serial_api.h"
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#include "serial_ex_api.h"
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#include "PinNames.h"
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#include "i2c_api.h"
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#include "pinmap.h"
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#include "ex_api.h"
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#define MBED_I2C_MTR_SDA PB_3 //i2c3
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#define MBED_I2C_MTR_SCL PB_2
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#define UART_BAUDRATE 115200
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#define MBED_I2C_SLAVE_ADDR0 0x4D // 0x9A //
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#define MBED_I2C_BUS_CLK 500000 //hz *Remind that in baud rate 9600 or 19200, 100000hz is suitable*
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static i2c_t i2cmaster;
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#define I2C_DATA_LENGTH 2
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static char i2cdatardsrc[I2C_DATA_LENGTH];
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static char i2cdatarddst[I2C_DATA_LENGTH];
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const u8 DLL = 921600/UART_BAUDRATE;
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char ctrl_initial_1[2] = {0x03 << 3,0x80};
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char ctrl_initial_2[2] = {0x00 << 3,921600/UART_BAUDRATE};
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char ctrl_initial_3[2] = {0x01 << 3,0x00};
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char ctrl_initial_4[2] = {0x03 << 3,0xbf};
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char ctrl_initial_5[2] = {0x02 << 3,0x10};
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char ctrl_initial_6[2] = {0x03 << 3,0x03};
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char ctrl_initial_7[2] = {0x02 << 3,0x06};
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char ctrl_initial_8[2] = {0x02 << 3,0x01};
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//end i2c
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// Master// Tx
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#define CLEAR_MST_TXC_FLAG (masterTXC = 0)
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#define SET_MST_TXC_FLAG (masterTXC = 1)
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#define WAIT_MST_TXC while(masterTXC == 0){;}
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volatile int masterTXC;
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static char i2c_ready = 0;
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static void i2c_master_rxc_callback(void *userdata)
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{
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int i2clocalcnt;
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int result = 0;
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// verify result
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result = 1;
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for (i2clocalcnt = 0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt++) {
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if (i2cdatarddst[i2clocalcnt] != i2cdatardsrc[i2clocalcnt]) {
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result = 0;
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break;
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}
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}
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}
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static void i2c_master_txc_callback(void *userdata)
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{
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SET_MST_TXC_FLAG;
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}
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static void i2c_master_write(void)
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{
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//DBG_8195A("Mst-W\n");
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CLEAR_MST_TXC_FLAG;
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_1[0], 2, 1);
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_2[0], 2, 1);
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_3[0], 2, 1);
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_4[0], 2, 1);
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_5[0], 2, 1);
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_6[0], 2, 1);
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_7[0], 2, 1);
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i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &ctrl_initial_8[0], 2, 1);
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WAIT_MST_TXC;
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}
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static void i2c_master_enable(void)
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{
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_memset(&i2cmaster, 0x00, sizeof(i2c_t));
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i2c_init(&i2cmaster, MBED_I2C_MTR_SDA ,MBED_I2C_MTR_SCL);
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i2c_frequency(&i2cmaster,MBED_I2C_BUS_CLK);
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i2c_set_user_callback(&i2cmaster, I2C_RX_COMPLETE, i2c_master_rxc_callback);
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i2c_set_user_callback(&i2cmaster, I2C_TX_COMPLETE, i2c_master_txc_callback);
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//i2c_set_user_callback(&i2cmaster, I2C_ERR_OCCURRED, i2c_master_err_callback);
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}
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void i2c_redirect_init(void)
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{
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// prepare for transmission
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_memset(&i2cdatardsrc[0], 0x00, I2C_DATA_LENGTH);
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_memset(&i2cdatarddst[0], 0x00, I2C_DATA_LENGTH);
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i2c_ready = 1;
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i2c_master_enable();
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i2c_master_write();
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}
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static u8 tx_data_i2c[2];
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static u8 rx_data_i2c[2];
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void i2c_put_char(u8 c){
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_memset(&tx_data_i2c[0],0x00,2);
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_memset(&rx_data_i2c[0],0x00,2);
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tx_data_i2c[0] = 0x00 << 3;
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tx_data_i2c[1] = c;
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i2c_write(&i2cmaster, 0x4D, &tx_data_i2c[0], 2, 1);
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i2c_read (&i2cmaster, 0x4D, &rx_data_i2c[0], 2, 1);
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}
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int use_mode;
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void console_init(void)
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{
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i2c_redirect_init();
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if(HalCheckSDramExist()){
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//DiagPrintf("It's 8195_AM\n");
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redirect_rom_init();
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}
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#if !TASK_SCHEDULER_DISABLED
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RtlConsolInitRam((u32)RAM_STAGE,(u32)0,(VOID*)NULL);
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#else
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RtlConsolInitRam((u32)ROM_STAGE,(u32)0,(VOID*)NULL);
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#endif
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#if BUFFERED_PRINTF
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rtl_printf_init();
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#endif
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}
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VOID HalSerialPutcRtl8195a(IN u8 c){
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u32 CounterIndex = 0;
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extern char i2c_ready;
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if(i2c_ready)
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i2c_put_char(c);
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}
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