2017-03-16
加入看门狗程序
2017-02-16
修改了wm8904寄存器 0x2e,0x2f把0x52修改为0x45。
软件版本V1.0
2017-02-13
测试软件V0.1
2017-02-13
修复传输有时静音bug
2017-02-11
解决两个i2s同时开启
2017-02-06
1.解决usb传输bug
2.两个单一通道都可以采集
2017-01-20
wm8904 配置成功
2017-01-16
一转四I2C,wm8904。
2017-01-14
usb 可以正常的发出正弦语音信号(数据少一半)
EFM32HG322F64
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温馨提示
好用的STM32F412工程模板 STM32F412的新型大量数据获取模式(BAM),为数据处理进行了功耗优化,将Dynamic Efficiency提升到了一个新的水平。 BAM允许通信外设实现批量数据交换,同时器件的其它部分(包括CPU)可保持在省电模式。 性能:在100 MHz频率下,从Flash存储器执行时,STM32F412能够提供125 DMIPS/339 CoreMark性能,并且利用意法半导体的ART加速器实现FLASH零等待状态。 DSP指令和浮点运算单元扩大了产品的应用范围。 功效:ST该系列产品采用意法半导体90 nm工艺,使用ART加速器和动态功耗调整功能,从Flash存储器执行指令,运行模式下可实现低至112 µA/MHz的电流消耗。 停机模式下,功耗低至18 µA。 集成度:STM32F412器件内置高达512至1024 KB的Flash存储器和高达256 KB的SRAM。 具备从48到144引脚各类封装。 4路USART,速度高达12.5 Mbit/s 5路SPI(I²S多路传输),速度高达50 Mbit/s 4个I²C,高达1Mbps 2x CAN(支持2.0B) 1个SDIO,运行于高达48MHz,所有封装都提供 1个USB 2.0 OTG全速(FS) 2个全双工I²S,最高32-bit/192 kHz 3个单工I²S,最高32-bit/192 kHz 2个数字滤波器,用于∑Δ调制器 4个PDM接口,支持立体声麦克风 速度高达2.4 MSPS的12位ADC, 14个定时器,频率高达100 MHz的16和32位定时器 硬件随机数发生器
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