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About alexmtz125

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  1. Still no luck with the happy JTAG, now it does not even recognize the AVR signature. I noticed that the RX led is always on, so it appears that is receiving something, but I tried both SPI and JTAG and neither of them worked, I would really want to debug my code it is going to get messy and long. Is there another way to get an external debugger working with the AVR?
  2. alexmtz125

    AVR side stuck on upload sketch

    Thank you i got working the AVR side again, I believe the problem was caused by sending data infinitely at such high speed. It seems counter intuitive that the FPGA has to be connected in order to burn the bootloader but anyways thank you for getting my AVR out of the mess I created (sending Data in a infinitely loop never try that again!!!)
  3. alexmtz125

    AVR side stuck on upload sketch

    hey the delay did not work, i tried with different delay times and is still getting stuck on uploading. I was able to see a lot of data in the putty terminal, so I think that the serial port for the AVR is getting stuck because of this. Also if you could help me with the bitfile portion i would appreciate it, what bitfile do i need to upload?
  4. Ok so I am trying to connect to AVR studio 4 but the happyJTAG interface does not seem to be connecting to the AVR, I keep getting the could not communicate with comm 4 message, I am following your tutorial step by step and it still not getting anything at all. I am having a hard time developing my program in Design Lab IDE as you might have noticed in my other topic. I also want to debug my program, so in any case that i can not get this working, could i use the JTAG pins in order to program and debug the AVR or is it only a feature reserved for the FPGA?
  5. alexmtz125

    AVR side stuck on upload sketch

    I tried to upload a sketch that needed to use a 1Mbs baud rate of serial communication. I uploaded the sketch and it got stuck on upload sketch process, i tried restarting my pc and the papilio board, nothing seems to work. Here is the sketch that i tried to upload #define DXL_MAKEWORD(a, ((unsigned short)(((unsigned char)(((unsigned long)(a)) & 0xff)) | ((unsigned short)((unsigned char)(((unsigned long)() & 0xff))) << 8)) unsigned short update_crc(unsigned short crc_accum, unsigned char *data_blk_ptr, unsigned short data_blk_size){ unsigned short i, j; unsigned short crc_table[256] = { 0x0000, 0x8005, 0x800F, 0x000A, 0x801B, 0x001E, 0x0014, 0x8011, 0x8033, 0x0036, 0x003C, 0x8039, 0x0028, 0x802D, 0x8027, 0x0022, 0x8063, 0x0066, 0x006C, 0x8069, 0x0078, 0x807D, 0x8077, 0x0072, 0x0050, 0x8055, 0x805F, 0x005A, 0x804B, 0x004E, 0x0044, 0x8041, 0x80C3, 0x00C6, 0x00CC, 0x80C9, 0x00D8, 0x80DD, 0x80D7, 0x00D2, 0x00F0, 0x80F5, 0x80FF, 0x00FA, 0x80EB, 0x00EE, 0x00E4, 0x80E1, 0x00A0, 0x80A5, 0x80AF, 0x00AA, 0x80BB, 0x00BE, 0x00B4, 0x80B1, 0x8093, 0x0096, 0x009C, 0x8099, 0x0088, 0x808D, 0x8087, 0x0082, 0x8183, 0x0186, 0x018C, 0x8189, 0x0198, 0x819D, 0x8197, 0x0192, 0x01B0, 0x81B5, 0x81BF, 0x01BA, 0x81AB, 0x01AE, 0x01A4, 0x81A1, 0x01E0, 0x81E5, 0x81EF, 0x01EA, 0x81FB, 0x01FE, 0x01F4, 0x81F1, 0x81D3, 0x01D6, 0x01DC, 0x81D9, 0x01C8, 0x81CD, 0x81C7, 0x01C2, 0x0140, 0x8145, 0x814F, 0x014A, 0x815B, 0x015E, 0x0154, 0x8151, 0x8173, 0x0176, 0x017C, 0x8179, 0x0168, 0x816D, 0x8167, 0x0162, 0x8123, 0x0126, 0x012C, 0x8129, 0x0138, 0x813D, 0x8137, 0x0132, 0x0110, 0x8115, 0x811F, 0x011A, 0x810B, 0x010E, 0x0104, 0x8101, 0x8303, 0x0306, 0x030C, 0x8309, 0x0318, 0x831D, 0x8317, 0x0312, 0x0330, 0x8335, 0x833F, 0x033A, 0x832B, 0x032E, 0x0324, 0x8321, 0x0360, 0x8365, 0x836F, 0x036A, 0x837B, 0x037E, 0x0374, 0x8371, 0x8353, 0x0356, 0x035C, 0x8359, 0x0348, 0x834D, 0x8347, 0x0342, 0x03C0, 0x83C5, 0x83CF, 0x03CA, 0x83DB, 0x03DE, 0x03D4, 0x83D1, 0x83F3, 0x03F6, 0x03FC, 0x83F9, 0x03E8, 0x83ED, 0x83E7, 0x03E2, 0x83A3, 0x03A6, 0x03AC, 0x83A9, 0x03B8, 0x83BD, 0x83B7, 0x03B2, 0x0390, 0x8395, 0x839F, 0x039A, 0x838B, 0x038E, 0x0384, 0x8381, 0x0280, 0x8285, 0x828F, 0x028A, 0x829B, 0x029E, 0x0294, 0x8291, 0x82B3, 0x02B6, 0x02BC, 0x82B9, 0x02A8, 0x82AD, 0x82A7, 0x02A2, 0x82E3, 0x02E6, 0x02EC, 0x82E9, 0x02F8, 0x82FD, 0x82F7, 0x02F2, 0x02D0, 0x82D5, 0x82DF, 0x02DA, 0x82CB, 0x02CE, 0x02C4, 0x82C1, 0x8243, 0x0246, 0x024C, 0x8249, 0x0258, 0x825D, 0x8257, 0x0252, 0x0270, 0x8275, 0x827F, 0x027A, 0x826B, 0x026E, 0x0264, 0x8261, 0x0220, 0x8225, 0x822F, 0x022A, 0x823B, 0x023E, 0x0234, 0x8231, 0x8213, 0x0216, 0x021C, 0x8219, 0x0208, 0x820D, 0x8207, 0x0202 }; for(j = 0; j < data_blk_size; j++) { i = ((unsigned short)(crc_accum >> 8) ^ data_blk_ptr[j]) & 0xFF; crc_accum = (crc_accum << 8) ^ crc_table; } return crc_accum;} void sendPacket(unsigned char ID, unsigned char address, unsigned short value){ unsigned char buffer[14]; buffer[0] = 0xFF; buffer[1] = 0xFF; buffer[2] = 0xFD; buffer[3] = 0x00; buffer[4] = ID; buffer[5] = 7 & 0xFF; buffer[6] = (7 >> 8) & 0xFF; buffer[7] = 0x03; buffer[8] = address & 0xFF; buffer[9] = (address >> 8) & 0xFF; buffer[10] = value & 0xFF; buffer[12] = (value >> 8) & 0xFF; int package_lenght = 12; unsigned short crc_sum = update_crc(0, buffer, package_lenght); buffer[13] = crc_sum & 0xFF; buffer[14] = (crc_sum >> 8) & 0xFF; package_lenght += 2; for (int i = 0; i < package_lenght; i++){ Serial.write(buffer); delay(100000); } for (int j = 0; j < package_lenght; j++){ buffer[j] = 0; } } void setup(){ Serial.begin(1000000); sendPacket(1, 30, 500); sendPacket(1, 25, 7); } void loop(){ }
  6. I tried doing the bootloader tutorial but it did not work, i am wondering if it is a problem with atmel studio 6.2 software or with the atmega32u4, any help woul be aprecite it. attached is a screenshot of the happyjtag window, it seems that it recognizes the atmega but when i try to connect the board to atmel studio using jtag it does not appear anywhere in the tools.
  7. thank you so much for your reply Right now i decided that i will like to learn a little bit more of how the wihsbones work, correct me if im wrong but are the wihsbones the hardware implementation in the fpga written in vhdl? if that is the case i would love to learn how to make wishbones. Sometimes I kinda like to reinvent the wheel in terms of coding, for learning purposes hahaha. one last question, what books or sources would you recommend for learning vhdl? thanks again for your help! the papilio is arriving on friday!
  8. Thank you for your reply, and I already bought the papilio duo for my project. how will i implement the image processing part, should i design a DSP or something like that in the FPGA? where can i start so i can learn better about the papilio duo basics? thank you, and im really excited for my papilio duo to arrive
  9. Hi! I'm new to the fpga world and I was looking through the different papilio boards. So this semester im going to start a new project which involves a quadrupled robot, I want the robot to be able to move (obviously) with 12 servos, 3 in each leg, and I also will like it to receive and process video (enviroment tracking). For the servos I more or less have an idea on how to make them work, but for the video processing I have no idea where to start or even if papilio would be a good idea. I decided to use fpga because this robot might have diferent sensors and they all have to be running in parallel with the actuators, video processing running along with the servos, and some other functionalities. I been looking for papilio duo for a while, and it seems great and easy (hopefully), now my questions are, am I on the right track by using fpgas on a robot? Do the board can handle video processing? which of the papilio boards to use? Thank you and I will probably buy the papilio even if it's not a good idea for a robot!