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I am using 4 wire resistive type touch screen interfaced with microcontroller (ATMega).
I have designed the program according to the required algorithm, y+ 5V y- 0v, read x- and then x+ 5V, x- 0V and read y-.
When i ready only x value it gives me correct answer, when i read the y value it...
Thanks for the input. I tried sending AT+REBOOT to disconnect master and slave however as other AT commands the module did not recognized the command and took it as a data to be sent to the slave...
kindly suggest
Thanks for the quick reply.
I have attached the data sheet. I agree with you that a reset pulse can be given for disconnecting master. But the problem is that my master is not connected with microcontroller board it is connected to PC over RS232 and hence problem is how to manage resetting the...
I am using AUBTM-20 Bluetooth modules.
I want to have one module acting as master connected to PC over serial port and other 3 to 4 modules acting as slave connected to various micro controller based systems also over serial port.
Master module is required to collect data from each slave...
Hello all,
i am working with CS5460 interfaced with ATMega32.
I am observing/facing following behavior /problems. I have not included code of different functions can discuss if required.
1. In CS5460_init_configure() function status and mask registers are cleared, pulse rate register and...
I working with CS5460 interfaced over SPI with Atmega32 (it has inbuilt SPI peripheral support)
part of the main code is given below. Problem is that after i start conversion DRDY bit is not set and the program waits in checking it forever..
I have gone through couple of thread and codes but...
Dear Sir,
As per our communication before kindly clarify following
Requirement: Create 8051/ATMEGA32 based wireless network using Zigbee module for Home Automation. The set-up requires both both point-to-point communication as well as multinode communication may be in mesh network form.
I...
I personally feel that working in embedded C will be more easy as one has to work with strings.
Still one can find no. of code in C reading which would give your direction to write program in assembly
Thanks for the interest shown...
Modem works fine and as expected when checked using hyper terminal.
To check whether i receive response from the modem i have written a small routine as follows:
The code simply initialize lcd and serial port (this is fine as i get expected behaviour from...
I agree with you that 0x0D is not a printable ASCII character.
However when i send the command "AT+CREG?" followed by '\r'
I should get the response something like +CREG:0, 1 <CR> <LF> OK, which i am unable to get from modem.
When i give the same command from hyperterminal I receive the...
Thanks Alexxx for showing up the interest..
Here are some of more details ...
1) Polling method is used for serial communication
LPC2148 supports internal FIFO of 16 bytes for serial communication and in this program i have enabled it....
buf_rx=read_string() is coded as follows
char...
I am trying to interface SIM300 GSM modem with LPC2148.
When i send an at command to modem, i get the echo of command send. But after sending '\r' at the end of the AT command i do not get the response.
To illustrate the problem part of interest in the code is as follows...
I have couple of ready codes in MATLAB which now i want to implement on LPC2148 controller from NXP and based on ARM7 core.
I know ways to convert MATLAB code to C or C++ codes, however as general C code and embedded C (target specific) have some differences, kindly guide me how to achieve it...
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