From: spiglia2 <sp...@ny...> - 2010-11-16 16:06:18
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Dear users, Need some assistance with an Overo on a custom expansion board ... not running. We're doing side-by-side checks between a Tobi and custom board, to validate the board and uSD card. A log file test on the Overo/Tobi tells us that it's running in that configuration; plugged-on to the custom expansion board, this log file is not written. This is a redirection of kernel messages normally written to volatile memory that is not written to the SD. Other observations: * Overo's GREEN and BLUE LED's come up in identically to its install on Tobi; this tells me that the TI pwr mng IC is probably happy. * Power and Gnd look fine. No communicationsWe do not currently connect to/use VBACKUP, NRESET, WAKEUP, POWER_ON or SYS_EN. From of the posts, it looks like these are not required. * We've observed that the NRESET line is pulled-up to 1.8V and steady; i.e., Overo NOT resetting. * No communications working ... USB Serial Console, USB Host, etc. Any debug insights would be appreciated. Steve -- View this message in context: http://old.nabble.com/Overo-Water-not-running-tp30230244p30230244.html Sent from the Gumstix mailing list archive at Nabble.com. |
From: spiglia2 <sp...@ny...> - 2010-11-16 16:11:37
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Additional Power Consumption Info: P(in) to Custom Expansion Board (no Overo) = 1.71W (9V @ ~190mA) P(in) to same (w/Overo) = 3.02W (9V @ ~335mA) deltaP(in) ~ Overo Power Draw ~ 1.31W Which should indicate that the Overo is running, yes? Thanks, Steve spiglia2 wrote: > > Dear users, > > Need some assistance with an Overo on a custom expansion board ... not > running. We're doing side-by-side checks between a Tobi and custom board, > to validate the board and uSD card. A log file test on the Overo/Tobi > tells us that it's running in that configuration; plugged-on to the custom > expansion board, this log file is not written. This is a redirection of > kernel messages normally written to volatile memory that is not written to > the SD. > > Other observations: > * Overo's GREEN and BLUE LED's come up in identically to its install on > Tobi; this tells me that the TI pwr mng IC is probably happy. > > * Power and Gnd look fine. No communicationsWe do not currently connect > to/use VBACKUP, NRESET, WAKEUP, POWER_ON or SYS_EN. From of the posts, it > looks like these are not required. > > * We've observed that the NRESET line is pulled-up to 1.8V and steady; > i.e., Overo NOT resetting. > > * No communications working ... USB Serial Console, USB Host, etc. > > Any debug insights would be appreciated. > > Steve > -- View this message in context: http://old.nabble.com/Overo-Water-not-running-tp30230244p30230263.html Sent from the Gumstix mailing list archive at Nabble.com. |
From: spiglia2 <sp...@ny...> - 2010-11-16 16:21:15
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FIXED ... 'that we're NOW writing to the SD.' spiglia2 wrote: > > Dear users, > > Need some assistance with an Overo on a custom expansion board ... not > running. We're doing side-by-side checks between a Tobi and custom board, > to validate the board and uSD card. A log file test on the Overo/Tobi > tells us that it's running in that configuration; plugged-on to the custom > expansion board, this log file is not written. This is a redirection of > kernel messages normally written to volatile memory that is NOW written to > the SD. > > Other observations: > * Overo's GREEN and BLUE LED's come up in identically to its install on > Tobi; this tells me that the TI pwr mng IC is probably happy. > > * Power and Gnd look fine. No communicationsWe do not currently connect > to/use VBACKUP, NRESET, WAKEUP, POWER_ON or SYS_EN. From of the posts, it > looks like these are not required. > > * We've observed that the NRESET line is pulled-up to 1.8V and steady; > i.e., Overo NOT resetting. > > * No communications working ... USB Serial Console, USB Host, etc. > > Any debug insights would be appreciated. > > Steve > -- View this message in context: http://old.nabble.com/Overo-Water-not-running-tp30230244p30230394.html Sent from the Gumstix mailing list archive at Nabble.com. |