From: Joseph W. <sj...@wi...> - 2006-03-01 07:09:00
|
Hi, =20 I just bought an roboAudio-th but I can't find any document for it = and have no idea about how to start. Anyone have any = information/document for roboAudio-th? =20 Thanks =20 Joseph |
From: Joseph W. <sj...@wi...> - 2006-03-01 07:16:56
|
Hi, =20 I just bought an roboAudio-th but I can't find any document for it = and have no idea about how to start. Anyone have any = information/document for roboAudio-th? =20 Thanks =20 Joseph |
From: Dave H. <dhy...@gm...> - 2006-03-01 07:30:39
|
Hi Joseph, > I just bought an roboAudio-th but I can't find any document for it an= d > have no idea about how to start. Anyone have any information/document fo= r > roboAudio-th? If you goto this page: http://www.gumstix.org/tikiwiki/tiki-index.php?page=3Dschematics it mentions that the roboaudio schematics are attached. To find the attachements, scroll all the way to the bottom of the page, and you should see: source history similar slides discuss 7 files attached Click on the 7 files attaced button. The first one, labelled top shows the locations of the various connectors. Sheets 2, 4 & 5 are the important ones for finding out what connects up where. Feel free to ask further questions. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Craig H. <cr...@gu...> - 2006-03-01 07:47:33
|
On Feb 28, 2006, at 11:30 PM, Dave Hylands wrote: > Hi Joseph, > >> I just bought an roboAudio-th but I can't find any document >> for it and >> have no idea about how to start. Anyone have any information/ >> document for >> roboAudio-th? > > If you goto this page: > http://www.gumstix.org/tikiwiki/tiki-index.php?page=schematics > it mentions that the roboaudio schematics are attached. > > To find the attachements, scroll all the way to the bottom of the > page, and you should see: > > source history similar slides discuss 7 files attached > > Click on the 7 files attaced button. The first one, labelled top shows > the locations of the various connectors. Sheets 2, 4 & 5 are the > important ones for finding out what connects up where. > > Feel free to ask further questions. From a software point of view, the roboaudio-th behaves basically as though it's both a robostix and an audiostix, in one board. So you can do all the audio stuff as though it's an audiostix, and all the robostuff as though it's a robostix. C |
From: Joseph W. <sj...@wi...> - 2006-03-01 16:41:25
|
Thanks, I find those 7 files but it didnt't solve my question because my = background is too week. I want to find out first is the pin lay out. = B00037.top.png has the top view of roboaudio. And tell me the topleft = is PWM but I don't know which one is power which one is ground which one = is signal. And the next is motor. For what kind of motor? What are = those two pins? Power and ground? Then GPIO, which is signal which is = ground? Next is ATMEGA? What is it? How to use it? Next is audio. = Why 6 pins? 5.1 Channel? which is which?=20 16 pins in UARTS, What are they? What is ISP? What is the 4 pins = GUMSTIX for? =20 =20 Thanks =20 Joseph=20 =20 ________________________________ From: gum...@li... on behalf of Dave = Hylands Sent: Tue 2/28/2006 11:30 PM To: gum...@li... Subject: Re: [Gumstix-users] roboAudio-th Hi Joseph, > I just bought an roboAudio-th but I can't find any document for it = and > have no idea about how to start. Anyone have any information/document = for > roboAudio-th? If you goto this page: http://www.gumstix.org/tikiwiki/tiki-index.php?page=3Dschematics it mentions that the roboaudio schematics are attached. To find the attachements, scroll all the way to the bottom of the page, and you should see: source history similar slides discuss 7 files attached Click on the 7 files attaced button. The first one, labelled top shows the locations of the various connectors. Sheets 2, 4 & 5 are the important ones for finding out what connects up where. Feel free to ask further questions. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting = language that extends applications into web and mobile media. Attend the live = webcast and join the prime developer group breaking into this new coding = territory! http://sel.as-us.falkag.net/sel?cmd=3Dk&kid=110944&bid$1720&dat=121642 _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Dave H. <dhy...@gm...> - 2006-03-01 18:44:07
|
Hi Joseph, > Thanks, I find those 7 files but it didnt't solve my question because my > background is too week. I want to find out first is the pin lay out. > B00037.top.png has the top view of roboaudio. And tell me the topleft is > PWM but I don't know which one is power which one is ground which one is > signal. I'm at work and don't have my roboaudio in front of me, so I'll possibly elaborate a bit more when I get home tonight. On the regular robostix, there are some labels on the back side of the board to help out. I don't recall with the roboaudio. I'm guessing that the PWM block is the same as on the regular robostix, and that ground is the outside row of pins, V_MOTOR is the middle row of pins, and the inside row of pins are the signals. > And the next is motor. For what kind of motor? What are those two > pins? Power and ground? The MOTOR pins are actually V_MOTOR, for connecting up a separate motor supply. Even servo motors draw more current than the robostix power supply can source, and you often want to run the servos at a different voltage than +5, so a separate power connector was provided. On the regular robostix there's a jumper to the regular +5, I'll have to check what's on the roboaudio. As a general rule, you can't connect any type of motor directly to the robostix, but you can connect a motor controller. Servos have built-in motor controller, so they work out OK. Any other type of motor is going to require an H-Bridge (or other motor controller). > Then GPIO, which is signal which is ground? I think that the little white square in each corner of the silkscreen is pin 1. On the GPIO_5V_B block (see Sheet 2 of the schematic) there is no ground. > Next is ATMEGA? What is it? How to use it? That's ADC_ATMEGA, which are 8 ADC's (analog to digital converters) connected to the ATMega128. There's sample code posted (see links from the Robostix-Programming page) > Next is audio. Why 6 pins? 5.1 Channel? which is which? See Sheet 5 of the schematic. Looks like a ground (pin 4) Stero Line in (pins 2 & 6), Stereo out (pins 1 & 5), and VREFDRV (not sure - check the datasheet on the UCB1400). > 16 pins in UARTS, What are they? Well there's a 4 pin TTL UART from the gumstix (STUART - ttyS2). There are also 2 UARTs from the ATMega128 and an i2c (which connects to both the gumstix and atmega)/ > What is ISP? That's the In System Programming header for programming the atmega if you're going to use the roboaudio by itself. > What is the 4 pins GUMSTIX for? Thats the console from the gumstix (als a UART - ttyS0) This page describes many of the signals (but for the robostix) http://gumstix.org/tikiwiki/tiki-index.php?page=3DRobostix-I%2FO I'll see about adding a section which formats it in the connector order that they appear in for the roboaudio. The PWM, UARTS, gumstix, and ISP connectors are identical for the roboaudio and the robostix. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Joseph W. <sj...@wi...> - 2006-03-01 22:50:34
|
Thanks, Let me explain what I want to do first. =20 I need to connect AX-12 servo to one TTL UART port. =20 Is UART-0, UART-1 TTL level or 3.3V? =20 AX-12 servo takes full duplix signal. Where can I get the cireuit to = merge TxD and RxD line? =20 Yes, I am thinking of trying the roboaudio by itself. can you tell me = more the In System Programming ? =20 Thanks =20 Joseph =20 ________________________________ From: gum...@li... on behalf of Dave = Hylands Sent: Wed 3/1/2006 10:44 AM To: gum...@li... Subject: Re: [Gumstix-users] roboAudio-th Hi Joseph, > Thanks, I find those 7 files but it didnt't solve my question because = my > background is too week. I want to find out first is the pin lay out. > B00037.top.png has the top view of roboaudio. And tell me the topleft = is > PWM but I don't know which one is power which one is ground which one = is > signal. I'm at work and don't have my roboaudio in front of me, so I'll possibly elaborate a bit more when I get home tonight. On the regular robostix, there are some labels on the back side of the board to help out. I don't recall with the roboaudio. I'm guessing that the PWM block is the same as on the regular robostix, and that ground is the outside row of pins, V_MOTOR is the middle row of pins, and the inside row of pins are the signals. > And the next is motor. For what kind of motor? What are those two > pins? Power and ground? The MOTOR pins are actually V_MOTOR, for connecting up a separate motor supply. Even servo motors draw more current than the robostix power supply can source, and you often want to run the servos at a different voltage than +5, so a separate power connector was provided. On the regular robostix there's a jumper to the regular +5, I'll have to check what's on the roboaudio. As a general rule, you can't connect any type of motor directly to the robostix, but you can connect a motor controller. Servos have built-in motor controller, so they work out OK. Any other type of motor is going to require an H-Bridge (or other motor controller). > Then GPIO, which is signal which is ground? I think that the little white square in each corner of the silkscreen is pin 1. On the GPIO_5V_B block (see Sheet 2 of the schematic) there is no ground. > Next is ATMEGA? What is it? How to use it? That's ADC_ATMEGA, which are 8 ADC's (analog to digital converters) connected to the ATMega128. There's sample code posted (see links from the Robostix-Programming page) > Next is audio. Why 6 pins? 5.1 Channel? which is which? See Sheet 5 of the schematic. Looks like a ground (pin 4) Stero Line in (pins 2 & 6), Stereo out (pins 1 & 5), and VREFDRV (not sure - check the datasheet on the UCB1400). > 16 pins in UARTS, What are they? Well there's a 4 pin TTL UART from the gumstix (STUART - ttyS2). There are also 2 UARTs from the ATMega128 and an i2c (which connects to both the gumstix and atmega)/ > What is ISP? That's the In System Programming header for programming the atmega if you're going to use the roboaudio by itself. > What is the 4 pins GUMSTIX for? Thats the console from the gumstix (als a UART - ttyS0) This page describes many of the signals (but for the robostix) http://gumstix.org/tikiwiki/tiki-index.php?page=3DRobostix-I%2FO I'll see about adding a section which formats it in the connector order that they appear in for the roboaudio. The PWM, UARTS, gumstix, and ISP connectors are identical for the roboaudio and the robostix. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting = language that extends applications into web and mobile media. Attend the live = webcast and join the prime developer group breaking into this new coding = territory! http://sel.as-us.falkag.net/sel?cmd=3Dk&kid=110944&bid$1720&dat=121642 _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Dave H. <dhy...@gm...> - 2006-03-01 23:00:34
|
Hi Joseph, > I need to connect AX-12 servo to one TTL UART port. > Is UART-0, UART-1 TTL level or 3.3V? > > AX-12 servo takes full duplix signal. Where can I get the cireuit to mer= ge > TxD and RxD line? The UART lines are all 5v. If you merge the Rx & Tx lines then you're half-duplex. Full-duplex requires separate Rx and Tx lines. If you merged them, then you've got something like RS-485? > Yes, I am thinking of trying the roboaudio by itself. can you tell me mo= re > the In System Programming ? The audio portion is pretty much useless in standalone mode (i.e. the atmega isn't connected to the UCB1400). Here are some getting started pages on the AVR: http://www.avrfreaks.net/index.php?module=3DdpDocs&func=3Dindex&cid=3D7 (you'll need to register) http://www.site.uottawa.ca/~jdesa066/avr_getting_started1.html -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Dave H. <dhy...@gm...> - 2006-03-02 06:35:55
|
I added a page which identifies the pins on the RoboAudioStix. http://www.gumstix.org/tikiwiki/tiki-index.php?page=3DRoboAudioStix-I%2FO -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |