First Publish. Works fine.
Dependents: unzen_sample_nucleo_f746 unzen_delay_sample_nucleo_f746 skeleton_unzen_nucleo_f746 ifmag_noise_canceller ... more
Nucleo F746ZG用のオーディオ・フレームワークです。フレームワーク地震の詳細は『雲仙』オーディオ・フレームワークを参照してください。
参考リンク
- skeleton_unzen_nucleo_f746 Nucleo F746ZGおよびUI基板を使う場合のスケルトンプログラム。F746を使う方はここから読み始めると良いでしょう。
unzen_hal.h
- Committer:
- shorie
- Date:
- 2016-04-12
- Revision:
- 1:9710fb328a08
- Parent:
- 0:5ac19c994288
- Child:
- 2:6613e62da521
File content as of revision 1:9710fb328a08:
#ifndef _UNZEN_HAL_H_ #define _UNZEN_HAL_H_ #include "mbed.h" namespace unzen { // Set up I2S peripheral to ready to start. // By this HAL, the I2S have to become : // - slave mode // - clock must be ready // - Interrupt enable. void hal_i2s_setup(); // configure the pins of I2S and then, wait for WS. // This waiting is important to avoid the delay between TX and RX. // The HAL API will wait for the WS changes from left to right then return. // The procesure is : // 1. configure all pin as GPIO // 2. wait the WS // 3. configure all pin as I2S void hal_i2s_pin_config_and_wait_ws(); // Start I2S transfer. Interrupt starts void hal_i2s_start(); IRQn_Type hal_get_i2s_irq_id(); IRQn_Type hal_get_process_irq_id(); // The returned value must be compatible with CMSIS NVIC_SetPriority() API. unsigned int hal_get_lowest_priority_level(); // reutun the intenger value which tells how much data have to be transfered for each // interrupt. For example, if the stereo 32bit data ( total 64 bit ) have to be sent, // have to return 2. // The special case is when the word needs to transmit by multiple interrupt, // must return 0. unsigned int hal_data_per_sample(); // return true when the sample parameter is ready to read. // return false when the sample is not ready to read. bool hal_get_i2s_rx_data( int & sample); // return true when the sample was completely stored to send. // return false when the same sample is required next time. bool hal_set_i2s_tx_data( int sample ); } #endif