Vishal Kotcherlakota / BGLib

Partial implementation of BlueGiga's BGAPI for use with the BLE112/3 modules over UART.

Hi there! I recently started using BLE112 modules with the mbed LPC1768 MCU, and I realized there was no implementation of BlueGiga's BGAPI available for mbed. This library implements only a few commands, but if you're looking to get started, this is a good place to look.

This was developed against BGAPI v1.3.2. I make no guarantees as to how well it will work with newer revisions of the software.

BGLib.cpp

Committer:
dishbreak
Date:
2015-05-18
Revision:
2:3ce9a31a6a7e
Parent:
1:3336b2391c80
Child:
3:8f43af513d87

File content as of revision 2:3ce9a31a6a7e:

#include "BGLib.h"

BGLib::BGLib(PinName tx, PinName rx, PinName rts, PinName cts) :
    mSerial(tx, rx) {
    mSerial.set_flow_control(SerialBase::RTSCTS, rts, cts);
    mSerial.baud(57600);
    mSerial.attach(this, &BGLib::parse);
}

void BGLib::set_ble_rsp_system_hello(hello_callback_t pCallback) {
    mHelloCallback = pCallback;
}

void BGLib::ble_cmd_system_hello() {
    uint8_t bytes[] = {0x00, 0x00, 0x00, 0x01};
    send_bytes(bytes, 4);
}

void BGLib::ble_cmd_system_get_info() {
    uint8_t bytes[] = {0x00, 0x00, 0x00, 0x08};
    send_bytes(bytes, 4);
}

void BGLib::set_ble_rsp_system_get_info(get_info_callback_t pCallback) {
    mGetInfoCallback = pCallback;
}

void BGLib::parse() {
    #ifdef DEBUG
    printf("Got data from port!\r\n");
    #endif
    
    uint8_t hilen = mSerial.getc();
    uint8_t lolen = mSerial.getc();
    uint8_t msg_class = mSerial.getc();
    uint8_t msg_id = mSerial.getc();
    
    #ifdef DEBUG
    printf("Message header: %x %x %x %x\r\n", hilen, lolen, msg_class, msg_id);
    #endif
    
    if (hilen == 0x00) { // response
        if (msg_class == 0x00) { // system_class
            if (msg_id == 0x01) { // system_hello
                mHelloCallback();
            } else if (msg_id == 0x08) {
                
                #ifdef DEBUG
                printf("Get Info Response\r\n");
                #endif
                
                ble_msg_system_get_info_rsp_t result;
                result.major = mSerial.getc() | (mSerial.getc() << 8);
                result.minor = mSerial.getc() | (mSerial.getc() << 8);
                result.patch = mSerial.getc() | (mSerial.getc() << 8);
                result.build = mSerial.getc() | (mSerial.getc() << 8);
                result.ll_version = mSerial.getc() | (mSerial.getc() << 8);
                result.protocol_version = mSerial.getc();
                result.hw = mSerial.getc();
                mGetInfoCallback(result);
            }
        }
    } 
    
    //safety valve: if there are bytes remaining
}

void BGLib::send_bytes(uint8_t bytes[], int length) {
    for (int i = 0; i < length; i++) {
        mSerial.putc(bytes[i]);
    }
}