huxi
144 lines
4.5 KiB
C
144 lines
4.5 KiB
C
#ifdef SUPPORT_MS_EXTENSIONS
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#pragma bss_seg(".iic_slave_demo.data.bss")
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#pragma data_seg(".iic_slave_demo.data")
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#pragma const_seg(".iic_slave_demo.text.const")
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#pragma code_seg(".iic_slave_demo.text")
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#endif
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#include "iic_api.h"
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#include "clock.h"
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#include "asm/wdt.h"
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#define LOG_TAG "[iic_s_demo]"
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#define LOG_ERROR_ENABLE
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#define LOG_DEBUG_ENABLE
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#define LOG_INFO_ENABLE
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#define LOG_CLI_ENABLE
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#include "debug.h"
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#if 1
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#define IIC_SCL_IO IO_PORTA_02
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#define IIC_SDA_IO IO_PORTA_03
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/******************************hw iic slave test*****************************/
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u8 slave_tx_buf_test[250];
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u8 slave_rx_buf_test[255];
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#define IIC_SLAVE_INDEX HW_IIC_0
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//rx协议:start,addr write,data0,data1,,,,,,stop
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//tx协议:start,addr read,data0,data1,,,,,nack,stop
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//tx协议:start,addr write,regx,start,addr read,data0,data1,,,,,nack,stop(v1不支持该模式)
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AT(.iic.text.cache.L1)
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void hw_iic_isr_fun_test()//slave test
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{
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static int rx_state = 0, tx_cnt = 0, rx_cnt = 1;
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u8 iic = IIC_SLAVE_INDEX;
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#if defined CONFIG_IIC_VERSION2
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if ((hw_iic_get_pnd(iic, I2C_PND_START)) || (hw_iic_get_pnd(iic, I2C_PND_ADR_MATCH))) {
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#else
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if (rx_state == 0) {
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#endif
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rx_state = hw_iic_slave_rx_byte(iic, &slave_rx_buf_test[0]);//addr
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if (rx_state == IIC_SLAVE_RX_ADDR_RX) { //rx
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hw_iic_slave_rx_prepare(iic, 1, 0);
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} else if (rx_state == IIC_SLAVE_RX_ADDR_TX) { //tx
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//准备数据并发送(不能耗时太久)
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hw_iic_slave_tx_byte(iic, slave_tx_buf_test[tx_cnt++]);
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} else { //error
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log_error("iic slave rx addr error!\n");
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rx_state = 0;
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hw_iic_slave_rx_prepare(iic, 0, 0);
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}
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return;
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}
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if (hw_iic_get_pnd(iic, I2C_PND_STOP)) {
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/* putchar('e'); */
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hw_iic_clr_all_pnd(iic);
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hw_iic_slave_rx_prepare(iic, 0, 0);
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if (rx_state >= IIC_SLAVE_RX_ADDR_RX) { //rx
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log_info_hexdump(slave_rx_buf_test, rx_cnt);
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}
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rx_state = 0;
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tx_cnt = 0;
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rx_cnt = 1;
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return;
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}
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if (hw_iic_get_pnd(iic, I2C_PND_TASK_DONE)) {
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if (rx_state == 0) { //error
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hw_iic_clr_all_pnd(iic);
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hw_iic_slave_rx_prepare(iic, 0, 0);
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} else if (rx_state == IIC_SLAVE_RX_ADDR_TX) { //tx
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if (hw_iic_slave_tx_check_ack(iic) == 0) { //no ack
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return;
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}
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hw_iic_slave_tx_byte(iic, slave_tx_buf_test[tx_cnt++]);
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} else if (rx_state >= IIC_SLAVE_RX_ADDR_RX) { //rx
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hw_iic_slave_rx_byte(iic, &slave_rx_buf_test[rx_cnt++]);
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hw_iic_slave_rx_prepare(iic, 1, 0);
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}
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}
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}
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void hw_iic_slave_polling_test()
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{
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struct hw_iic_slave_config hw_iic_config_test = {
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.config.role = IIC_SLAVE,
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.config.scl_io = IIC_SCL_IO + IIC_SLAVE_INDEX,
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.config.sda_io = IIC_SDA_IO + IIC_SLAVE_INDEX,
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.config.io_mode = PORT_INPUT_PULLUP_10K,//上拉或浮空
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.config.hdrive = PORT_DRIVE_STRENGT_2p4mA, //enum GPIO_HDRIVE 0:2.4MA, 1:8MA, 2:26.4MA, 3:40MA
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.config.ie_en = 0,
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.config.irq_priority = 3,
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.config.io_filter = 1,
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.slave_addr = 0x68,
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.iic_slave_irq_func = NULL,
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};
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for (u16 i = 0; i < sizeof(slave_rx_buf_test); i++) {
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slave_rx_buf_test[i] = 0;
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}
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for (u8 i = 0; i < sizeof(slave_tx_buf_test); i++) {
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slave_tx_buf_test[i] = i;
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}
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//ie
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#if 0//ie test
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hw_iic_config_test.config.ie_en = 1;
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hw_iic_config_test.iic_slave_irq_func = hw_iic_isr_fun_test;
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enum iic_state_enum iic_init_state1 = hw_iic_slave_init(IIC_SLAVE_INDEX, &hw_iic_config_test);
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if (iic_init_state1 == IIC_OK) {
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log_info("iic%d_slave init ok", IIC_SLAVE_INDEX);
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}
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while (1) {
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wdt_clear();
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mdelay(1000);
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}
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#endif
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//polling
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enum iic_state_enum iic_init_state = hw_iic_slave_init(IIC_SLAVE_INDEX, &hw_iic_config_test);
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if (iic_init_state == IIC_OK) {
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log_info("iic%d_slave init ok", IIC_SLAVE_INDEX);
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}
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/* JL_PORTB->DIR &= ~BIT(3);//test io */
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/* JL_PORTB->OUT &= ~BIT(3); */
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#if 0//rx test
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while (1) {
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hw_iic_slave_polling_rx(IIC_SLAVE_INDEX, slave_rx_buf_test);
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wdt_clear();
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}
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#else//tx test
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while (1) {
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log_info("------------iic%d slave polling tx test------------\n", IIC_SLAVE_INDEX);
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if (hw_iic_slave_polling_tx(IIC_SLAVE_INDEX, slave_tx_buf_test)) {
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log_info("iic%d slave tx ok\n", IIC_SLAVE_INDEX);
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} else {
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log_info("iic%d slave tx fail\n", IIC_SLAVE_INDEX);
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}
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wdt_clear();
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}
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#endif
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}
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#endif
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