La Suno / Mbed 2 deprecated afero_poc15_180403

I2C hang recover function added

Dependencies:   UniGraphic mbed vt100

In this version, check_i2c_pins function was added in edge_mgr.cpp.

プログラムの起動時、I2Cモジュールを初期化する前に、I2Cに使用するピンの電位を確認し
もし一方でも Low に張り付いていた場合、SCL を GPIO 出力に設定して　
所定回数 (I2C_UNLOCK_TRIAL_CYCLE) 反転させることにより、疑似リセットクロックを生成します。

その後は、通常の起動手順に復帰し、以降はこれまでと同様の動作をします。

afLib/afErrors.h

Committer:
gaku_miyagawa
Date:
2018-06-18
Revision:
2:de22987be9ba
Parent:
0:d895cd1cd897

File content as of revision 2:de22987be9ba:

/**
 * Copyright 2015 Afero, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef AF_ERRORS_H__
#define AF_ERRORS_H__

#define afSUCCESS                    0    // Operation completed successfully
#define afERROR_NO_SUCH_ATTRIBUTE   -1    // Request was made for unknown attribute id
#define afERROR_BUSY                -2    // Request already in progress, try again
#define afERROR_INVALID_COMMAND     -3    // Command could not be parsed
#define afERROR_QUEUE_OVERFLOW      -4    // Queue is full
#define afERROR_QUEUE_UNDERFLOW     -5    // Queue is empty
#define afERROR_INVALID_PARAM       -6    // Bad input parameter

#endif // AF_ERRORS_H__