KaiserS0ze commented 7 years ago

DDRB = 0b0000001;(6 zeroes after b)

should be

DDRB = 0b00000001; (7 zeroes after b)

its making the wrong pin as output, according to the circuit in MAKE: Avr programming

hexagon5un commented 7 years ago

Oh crap! Thank you. I have no idea how that got through.

Fixed.

Thanks again.

KaiserS0ze commented 7 years ago

Hey, It's no problem. I recently purchased your book and I love it. But, I am having some problems in running the code. If it's okay can I share them with you? I am currently on the serial communication chapter.

Best wishes

Abhijeet Dutt Srivastava

On Mar 26, 2017 1:31 AM, "Elliot Williams" notifications@github.com wrote:

Closed #23 https://github.com/hexagon5un/AVR-Programming/issues/23.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hexagon5un/AVR-Programming/issues/23#event-1015455501, or mute the thread https://github.com/notifications/unsubscribe-auth/AYjfp_pnM6R9U2voEkQcf3X2H_ByeaULks5rpXJ9gaJpZM4Mm6Hd .

hexagon5un commented 7 years ago

Sure! Let me know what's up.

On 17-04-11 01:55:01, KaiserS0ze - notifications@github.com wrote:

Hey, It's no problem. I recently purchased your book and I love it. But, I am having some problems in running the code. If it's okay can I share them with you? I am currently on the serial communication chapter.

Best wishes

Abhijeet Dutt Srivastava

On Mar 26, 2017 1:31 AM, "Elliot Williams" notifications@github.com wrote:

Closed #23 https://github.com/hexagon5un/AVR-Programming/issues/23.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hexagon5un/AVR-Programming/issues/23#event-1015455501, or mute the thread https://github.com/notifications/unsubscribe-auth/AYjfp_pnM6R9U2voEkQcf3X2H_ByeaULks5rpXJ9gaJpZM4Mm6Hd .

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KaiserS0ze commented 7 years ago

Hello,

Thanks in advance !

In the the program listing serialloopback.c you have included some user defined libraries like the USART.h. I downloaded this from github and saved it in the folder containing the code and makefile but still the program did not run so I defined the specific functions in the program itself. And the compiler asked me to define the Baud rate and F_CPU and I don't know what F_CPU means. So as you can see its become pretty cumbersome and I have totally detracted from learning serial communication. I am also including the code I ended up with. If you could tell me what to do I would be grateful.

best wishes

Abhijeet Dutt Srivastava

On Wed, Apr 12, 2017 at 1:30 PM, Elliot Williams notifications@github.com wrote:

Sure! Let me know what's up.

On 17-04-11 01:55:01, KaiserS0ze - notifications@github.com wrote:

Hey, It's no problem. I recently purchased your book and I love it. But, I am having some problems in running the code. If it's okay can I share them with you? I am currently on the serial communication chapter.

Best wishes

Abhijeet Dutt Srivastava

On Mar 26, 2017 1:31 AM, "Elliot Williams" notifications@github.com wrote:

Closed #23 https://github.com/hexagon5un/AVR-Programming/issues/23.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hexagon5un/AVR-Programming/ issues/23#event-1015455501, or mute the thread https://github.com/notifications/unsubscribe-auth/AYjfp_ pnM6R9U2voEkQcf3X2H_ByeaULks5rpXJ9gaJpZM4Mm6Hd .

-- You are receiving this because you modified the open/close state. Reply to this email directly or view it on GitHub: https://github.com/hexagon5un/AVR-Programming/issues/23# issuecomment-293194409

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-- Best Wishes Abhijeet Dutt Srivastava

include<avr/io.h>

include<util/delay.h>

void initUSART(void); void transmitByte(uint8_t data); void printString(const char myString[]); uint8_t receiveByte(void);

define F_CPU 8000000 // I found this value which I simply pasted here

define BAUD 9600

include<util/setbaud.h>

int main(void) { char serialCharacter; DDRB = 0xff; initUSART(); printString("Hello World\r\n");

while(1) { serialCharacter = receiveByte(); transmitByte(serialCharacter); PORTB = serialCharacter; }

return 0; // Code is not showing any error but I am not satisfied }

// Functions defined below

void initUSART(void) { / requires BAUD / UBRR0H = UBRRH_VALUE; / defined in setbaud.h / UBRR0L = UBRRL_VALUE;

if USE_2X

void UCSR0A |= (1 << U2X0);

else

UCSR0A &= ~(1 << U2X0);

endif

                              /* Enable USART transmitter/receiver */

UCSR0B = (1 << TXEN0) | (1 << RXEN0); UCSR0C = (1 << UCSZ01) | (1 << UCSZ00); / 8 data bits, 1 stop bit / }

void transmitByte(uint8_t data) { / Wait for empty transmit buffer / loop_until_bit_is_set(UCSR0A, UDRE0); UDR0 = data; / send data / }

uint8_t receiveByte(void) { loop_until_bit_is_set(UCSR0A, RXC0); / Wait for incoming data / return UDR0; / return register value / }

void printString(const char myString[]) { uint8_t i = 0; while (myString[i]) { transmitByte(myString[i]); i++; } }

hexagon5un commented 7 years ago

F_CPU is defined in the Makefile. Are you using Atmel Studio? They have a location somewhere that you can enter user-defined parameters like this.

Project -> Toolchain -> AVR/GNU C Compiler -> Symbols then add F_CPU=8000000 (or whatever)

http://www.avrfreaks.net/forum/how-set-fcpu

KaiserS0ze commented 6 years ago

Hey Eliot !

I had left working with your book ! I recently started again and am again stuck on the serialloopback code. Answering your previous mail - No I use programmer's notepad/Winavr. Please tell me where to get the pinDefines.h library and the USART.h library. I really love your book and I am learning a lot, I want to point out something on page 73 where its written "0xFF is 255 in hexadecimal" won't it be decimal? Thanks!

On Tue, Apr 18, 2017 at 4:47 PM, Elliot Williams notifications@github.com wrote:

F_CPU is defined in the Makefile. Are you using Atmel Studio? They have a location somewhere that you can enter user-defined parameters like this.

Project -> Toolchain -> AVR/GNU C Compiler -> Symbols then add F_CPU=8000000 (or whatever)

http://www.avrfreaks.net/forum/how-set-fcpu

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hexagon5un/AVR-Programming/issues/23#issuecomment-294789898, or mute the thread https://github.com/notifications/unsubscribe-auth/AYjfp7vDRqbHEgY8IdFns2j8lEGwnuPxks5rxJutgaJpZM4Mm6Hd .

-- Best Wishes Abhijeet Dutt Srivastava

KaiserS0ze commented 6 years ago

Hey Eliot !

Here is a picture of the error I am receiving. Thanks again !

On Wed, Jan 24, 2018 at 7:34 PM, Abhijeet D.Srivastava < abhijeet.ds63@gmail.com> wrote:

Hey Eliot !

I had left working with your book ! I recently started again and am again stuck on the serialloopback code. Answering your previous mail - No I use programmer's notepad/Winavr. Please tell me where to get the pinDefines.h library and the USART.h library. I really love your book and I am learning a lot, I want to point out something on page 73 where its written "0xFF is 255 in hexadecimal" won't it be decimal? Thanks!

On Tue, Apr 18, 2017 at 4:47 PM, Elliot Williams <notifications@github.com

wrote:

F_CPU is defined in the Makefile. Are you using Atmel Studio? They have a location somewhere that you can enter user-defined parameters like this.

Project -> Toolchain -> AVR/GNU C Compiler -> Symbols then add F_CPU=8000000 (or whatever)

http://www.avrfreaks.net/forum/how-set-fcpu

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hexagon5un/AVR-Programming/issues/23#issuecomment-294789898, or mute the thread https://github.com/notifications/unsubscribe-auth/AYjfp7vDRqbHEgY8IdFns2j8lEGwnuPxks5rxJutgaJpZM4Mm6Hd .

-- Best Wishes Abhijeet Dutt Srivastava

-- Best Wishes Abhijeet Dutt Srivastava

KaiserS0ze commented 6 years ago

Hey Elliot I got the code running, soon after I wrote the above mail. However, I defined the functions you made in USART.h in the program itself. I use Winavr and Mfile please tell me how to compile a custom library along with the program- I just can't understand. Thanks so much. P.S Sorry If I bothered you with too many mails

Abhijeet

On Jan 24, 2018 7:38 PM, "Abhijeet D.Srivastava" abhijeet.ds63@gmail.com wrote:

Hey Eliot !

Here is a picture of the error I am receiving. Thanks again !

On Wed, Jan 24, 2018 at 7:34 PM, Abhijeet D.Srivastava < abhijeet.ds63@gmail.com> wrote:

Hey Eliot !

I had left working with your book ! I recently started again and am again stuck on the serialloopback code. Answering your previous mail - No I use programmer's notepad/Winavr. Please tell me where to get the pinDefines.h library and the USART.h library. I really love your book and I am learning a lot, I want to point out something on page 73 where its written "0xFF is 255 in hexadecimal" won't it be decimal? Thanks!

On Tue, Apr 18, 2017 at 4:47 PM, Elliot Williams < notifications@github.com> wrote:

F_CPU is defined in the Makefile. Are you using Atmel Studio? They have a location somewhere that you can enter user-defined parameters like this.

Project -> Toolchain -> AVR/GNU C Compiler -> Symbols then add F_CPU=8000000 (or whatever)

http://www.avrfreaks.net/forum/how-set-fcpu

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hexagon5un/AVR-Programming/issues/23#issuecomment-294789898, or mute the thread https://github.com/notifications/unsubscribe-auth/AYjfp7vDRqbHEgY8IdFns2j8lEGwnuPxks5rxJutgaJpZM4Mm6Hd .

-- Best Wishes Abhijeet Dutt Srivastava

-- Best Wishes Abhijeet Dutt Srivastava

hexagon5un / AVR-Programming

Mistake ! #23

include<avr/io.h>

include<util/delay.h>

define F_CPU 8000000 // I found this value which I simply pasted here

define BAUD 9600

include<util/setbaud.h>

if USE_2X

else

endif