56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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#include "bflb_mtimer.h"
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#include "bflb_i2c.h"
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#include "board.h"
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int main(void)
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{
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board_init();
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board_i2c0_gpio_init();
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struct bflb_device_s *i2c0;
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i2c0 = bflb_device_get_by_name("i2c0");
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bflb_i2c_init(i2c0, 400000);
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struct bflb_i2c_msg_s msgs[2];
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uint8_t subaddr[2] = { 0x00, 0x00 };
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uint8_t write_data[8];
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uint8_t read_data[8];
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for (size_t i = 0; i < 8; i++) {
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write_data[i] = i;
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}
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msgs[0].addr = 0x50;
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msgs[0].flags = I2C_M_NOSTOP;
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msgs[0].buffer = subaddr;
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msgs[0].length = 2;
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msgs[1].addr = 0x50;
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msgs[1].flags = 0;
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msgs[1].buffer = write_data;
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msgs[1].length = 8;
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bflb_i2c_transfer(i2c0, msgs, 2);
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printf("write over\r\n");
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bflb_mtimer_delay_ms(200);
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msgs[1].addr = 0x50;
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msgs[1].flags = I2C_M_READ;
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msgs[1].buffer = read_data;
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msgs[1].length = 8;
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bflb_i2c_transfer(i2c0, msgs, 2);
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printf("read over\r\n");
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for (uint8_t i = 0; i < 8; i++) {
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if (write_data[i] != read_data[i]) {
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printf("check fail\r\n");
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while (1) {
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}
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}
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}
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while (1) {
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printf("helloworld\r\n");
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bflb_mtimer_delay_ms(2000);
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}
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}
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