[[/media/uploads/MahekDave/max44000.txt]] I am trying to program MAX44000 PMB1 (Proximity Sensor) with MAX32630FTHR Board. But after running the sample program (file attached), I get the error - "Initialized MAX44000 mbed assertation failed: stop != 0, file: C:\Jenkins\workspace\mbed-2-build-library\targets\TARGET_Maxim\TARGET_MAX32630\i2c_api.c, line 103 " Please help me in programming MAX44000 peripheral module with MAX32630 FTHR Board. [[/media/uploads/MahekDave/max44000.txt]]

int i2c_read(i2c_t *obj, int address, char *data, int length, int stop)
{
    MBED_ASSERT(stop != 0);  // <<<<<<<<<<<<<<<<<< HERE IS THE LINE 103 ASSERT <<<<<<<<<<<<<
    return I2CM_Read(obj->i2c, address >> 1, NULL, 0, (uint8_t *)data, length);
}

int I2C::read(int address, char* data, int length, bool repeated) {
    // stuff deleted

    int stop = (repeated) ? 0 : 1; // <<<<<<<<< STOP SET TO ZERO WHEN REPEATED IS TRUE <<<<<<<<<
    int read = i2c_read(&_i2c, address, data, length, stop);

    // stuff deleted

     int read(int address, char *data, int length, bool repeated = false); // <<< DEFAULT FOR REPEATED IS FALSE <<<

Dave, You can find the official mbed library sources below. It's also a fairly small download (41MB) for convenient browsing on your home machine. \\ \\ Click on **mbed-dev** below to browse the library source online. Also, take note of "//Supersedes mbed-src.//" {{/media/uploads/AzqDev/arrow-link-color.gif}} <<library https://developer.mbed.org/users/mbed_official/code/mbed-dev/>> The offending line 103 of i2c_api.c, found at\\ [[https://developer.mbed.org/users/mbed_official/code/mbed-dev/file/ff67d9f36b67/targets/TARGET_Maxim/TARGET_MAX32630/i2c_api.c]] is shown in line 3 below: <<code>> int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) { MBED_ASSERT(stop != 0); // <<<<<<<<<<<<<<<<<< HERE IS THE LINE 103 ASSERT <<<<<<<<<<<<< return I2CM_Read(obj->i2c, address >> 1, NULL, 0, (uint8_t *)data, length); } <</code>> From the above it seems that this target's version of i2c_read __requires__ stop to be a **non-zero** value. Then, in [[https://developer.mbed.org/users/mbed_official/code/mbed-dev/file/ff67d9f36b67/drivers/I2C.cpp]] we find at line 79 <<code>> int I2C::read(int address, char* data, int length, bool repeated) { // stuff deleted int stop = (repeated) ? 0 : 1; // <<<<<<<<< STOP SET TO ZERO WHEN REPEATED IS TRUE <<<<<<<<< int read = i2c_read(&_i2c, address, data, length, stop); // stuff deleted <</code>> And in line 98 of [[https://developer.mbed.org/users/mbed_official/code/mbed-dev/file/ff67d9f36b67/drivers/I2C.h]] we see the **default** for parameter repeated is **false**. <<code>> int read(int address, char *data, int length, bool repeated = false); // <<< DEFAULT FOR REPEATED IS FALSE <<< <</code>> This means the assert will only fail when parameter **repeated** is deliberately set to **true**.\\ This should give you enough material to dig into the Max4400 library and find the offending **read**s that set repeated to **true**, and find a way around them. Also, I'm sure that the Max4400 team and library creator(s) would certainly appreciate the feedback on their library. Hope that helps, let us know what happened! Azq\\ IQS624 library creator\\ [[http://bit.ly/IQS624-page]] \\ \\ \\