2011:arduino_usb_host_shield_20110822
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2011:arduino_usb_host_shield_20110822 [2011/08/22 19:34] – tomgee | 2011:arduino_usb_host_shield_20110822 [2012/02/04 13:55] (current) – tomgee | ||
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bye, zacharias | bye, zacharias | ||
+ | |||
+ | ========================================================= | ||
+ | My Sparkfun comments: | ||
+ | |||
+ | I can confirm that the Sparkfun Ethernet shield works with the USB Host Shield. | ||
+ | To make mine work with Oleg's legacy code: 1. Cut USB Host Shield PCB trace | ||
+ | going to IO pin 10. 2. Wire the PCB trace to pin 6. (this is the trace that used | ||
+ | to be hooked to pin 10). 3. Change #define MAXSS 10 to #define MAXSS 6 in | ||
+ | Max3421econstants.h 4. Supply a hefty source of 9 volts to the Ethernet shield. | ||
+ | Running from the USB power is not enough!!! 5. Run boardtest.pde. Monitor using | ||
+ | the serial monitor with monitor speed set to 115200 baud (the drop down menu in | ||
+ | the lower right corner). | ||
+ | |||
+ | The Sparkfun Arduino ethernet regulator is almost too hot to touch. Using an IR | ||
+ | thermometer I measured 150 F on the regulator and 180 F on the reverse | ||
+ | protection diode D1 feeding it. | ||
+ | |||
+ | =========================================================== | ||
+ | Comments from stan001 on Sparkfun: | ||
+ | |||
+ | I got V2.0 libraries to work with this Sparkfun USB Host Shield. | ||
+ | |||
+ | I compared this board schematic to the Circuit@Home V2 board and found the differences. | ||
+ | |||
+ | The Sparkfun board, MAX3421E RESET pin is wired to pin D7 whereas the | ||
+ | Circuit@Home V2 board is wired to the Arduino RST or Atmel328 Pin 1. | ||
+ | |||
+ | I just jumper the D7 to RST on the female header and it " | ||
+ | |||
+ | Run the board_qc of Version 2.0 libraries and all the test is passed except the | ||
+ | 100 resets is a bit delay with the message below : \\ | ||
+ | |||
+ | Circuits At Home 2011 USB | ||
+ | Host Shield Quality Control Routine\\ Reading REVISION register...\\ Die revision 03\\ | ||
+ | SPI long test. \\ Transfers 1MB of data. Each dot is 64K\\ ................ \\ SPI long | ||
+ | test passed\\ [snip]\\ Resetting oscillator \\ Reset number 0 Time to stabilize - 687\\ | ||
+ | |||
+ | |||
+ | ------------- | ||
+ | stan001 | October 12, 2011 at 10:46 AMComment Rating1 | ||
+ | |||
+ | It will work and I can confirm it.. | ||
+ | |||
+ | Just solder a wire from digital pin7 to reset pin (next to the 3.3V pin) at the bottom of the Sparkfun shield. | ||
+ | |||
+ | No software changes necessary on V2.0 library.. |
2011/arduino_usb_host_shield_20110822.1314056084.txt.gz · Last modified: 2011/08/22 19:34 by tomgee