captdam

//AVR gcc config: workspace/.vscode/c_cpp_properties.json
{
	"configurations": [
		{
			"name": "Linux avr-gcc",
			"intelliSenseMode": "clang-x64",
			"includePath": ["/usr/lib/avr/include"/*, "~/Dev/libavr"*/],
			"compilerPath": "/usr/lib/avr/bin",
			"browse": {
				"path": ["${workspaceFolder}"],

captdam

AVR programmer notes

Download from MCU (debug/backup):

sudo avrdude -p m328p -c arduino -P /dev/ttyACM0 -U flash:r:dump.hex:i
avr-objdump -m avr5 -s dump.hex			//Dump all w/o disassembly, avr5 is the arch name of m328p
avr-objdump -m avr5 -s -d -j .secX dump.hex	//Dump and disassembly sectionX

Upload to MCU (compile and program):

captdam

#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>

/**
xo: orginal data
xp: processed data (applied filter)
**/

#define	FILENAME	"./stage1.data"

captdam

#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include "./util.c"

int main() {
	struct myData {
		int v1;
		int v2;
		float f1;

captdam

module runled (
	input	wire		clk,
	input	wire		reset,
	output	wire	[7:0]	led,

	output wire	[14:0]	hps_memory_mem_a,                           
	output wire	[2:0]	hps_memory_mem_ba,                          
	output wire		hps_memory_mem_ck,                          
	output wire		hps_memory_mem_ck_n,                        
	output wire		hps_memory_mem_cke,                         

captdam

#include <stdio.h>
#include <stdint.h>

int main() {
	float a = 123.96875f;
	uint32_t* ptr = &a; //float is 32-bit
	printf("%f = ", a);
	for (int i = 31; i >= 0; i--) {
		printf("%c", (*ptr>>i) & 1 ? '1' : '0');
		if (i == 31) putc(' ', stdout);

captdam

#include <avr/io.h>
#include <avr/interrupt.h>

#define RC_CLOCK_CALIBRATE 0xA0

int main(void) {
	CLKPR = 0x80;
	CLKPR = 0x03; //Clk divider = 8
	OSCCAL = RC_CLOCK_CALIBRATE;
	

captdam

module UART (baud,txData,rxData,sendData,sendWIP,receiveRequest,txPin,rxPin,clk,reset);

	input	[15:0] baud;

	input	[7:0] txData;
	output	[7:0] rxData;
	reg	[7:0] rxData;

	input	sendData;
	output	sendWIP;

captdam

;Scratch, save before call child, free to use in subroutine
#define	_RA	R0

;Always zero, do not modify
#define	_RZERO	R1

;Temp register, save before call child, free to use in subroutine
#define	_RT0	R18	;Arg3
#define	_RT1	R19
#define	_RT2	R20	;Arg2

captdam

/*
How to use:
1. Login to your uWinSite
2. Go to: Manage Classes/View my Classes
3. Choose the semester, and you should see all your classes in the page.
4. Open the page inspector of your web browser.
5. Copy the code into the debugger and hit enter. The code is now embedded into the page.
6. Execute "timetable()" in the debuger.
7. The timetable will be generated, and it will be located at the bottom of the page.
*/