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OpenMoko e' un framework software che si appoggia su una piattaforma hardware. L' Hardware Neo1973 e' la prima piattaforma hardware a trarre il massimo beneficio dalla Distribuzione software OpenMoko. E' possibile trovare le specifiche dell' Hardware Neo1973 analizzando queste pagine introduttive e le altre pagine riguardanti l' Hardware Neo1973 qui' di seguito.
Lista dei desideri:Opinioni Neo1973 Fase 0
Il Processore principale (CPU) del Neo1973 e' il Samsung S3C2410AL-26 (In grado di funzionare sino a 266 MHz)
64MB Samsung NAND flash (K9F1208U0B) pilotata da un NAND controller S3C2410.
Questa e' l'unica memoria flash del dispositivo. Il S3C2410 esegue il boot direttamente dalla nand, usand il S3C2410 Steppingstone.
Utilizziamo solo software libero, nessun file-system per flash proprietario. Per una descrizione completa su come e' usato, vedere Blocchi difettosi nelle NAND
128MB SDRAM (2x Samsung K4M511633C) all'SDRAM controller S3C2410
Il modem GSM/GPRS e' un Texas Instruments basato sulla piattaforma Calypso.
Purtroppo non possiamo fornire troppi dettagli sul chipset GSM a causa degli NDA (Non Disclousre Agreement) molto rigidi. In ogni caso, non e' necessario averli, in quanto si interfaccia usando una linea seriale UART standard verso l'S3C2410. Su questa interfaccia, GSM 07.05, GSM 07.10 vengono utilizzati anche altri protocolli standardizzati.
Homepage del Prodotto: TWL3014
Homepage del Prodotto: TRF6151
Supporto Quadri-band
GPRS Classe 12/CS4
Hammerhead PMB 2520 AGPS della Global Locate.
Non ci sara' un driver funzionante sino alla meta' di Aprile.
Il Neo1973 ha una microSD anche conosciuta come slot Transflash. Dovrebbe supportare l'SDHC, ma questa funzionalita' non e' stata testata. Se funziona, memory carda >2G dovrebbero poter funzionare senza problemi. Dal momento che non ci sono microSD card da piu' di 2G al momento, non sono stati eseguiti test. Lo slot MicroSD e' sotto la batteria.
Questo e' un modulo TD028TTEC1 con diagonale di 2.8" (1.7" x 2.27" - 43mm x 58mm) a 480x640 toppoly (tpo), che fa uso di un chipset Toshiba JBT6K74 TFT LCD Driver.
Praticamente d=identico a this one on ebay
Modulo Delta DFBM-CS320 Classe 2, che fa uso del CSR BlueCore4
L'Host controller USB e' all'interno dell'S3C2410
L'USB Device controller e' all'interno dell'S3C2410
Vedi: Il Sottosistema Audio del Neo1973
There's a WM8753 Wolfson Microelectronics CODEC (This is not a 'smart' codec that can interpret MP3/... it is a simple dumb 'sound card'.
There's a National Semiconductor LM4857 Stereo Amplifier at the analog audio output of the WM8753
There's a four-ring 2.5mm stereo jack which provides connectivity to old-fashioned wired headsets.
The headsets used by Motorola smartphones (A780,A1200, ...) and the V-360 have a compatible configuration.
This one is wired via PCM bus from the CSR Bluetooth chip to the Wolfson codec.
A Philips PCF50606 is used for power management.
The Neo1973 Battery is compatible with a Nokia BL5C battery. According to this post on the mailinglist. Photo of the battery inside the Neo1973.
The Neo1973 features two buttons:
A number of alternate case designs have been suggested and requested.
Alternate Neo1973 case designs
This is the most simple, non-bluetooth version of the prototype.
First generation of prototypes that was given to internal OpenMoko software developers.
Unfortunately not useful at all due to non-working touchscreen.
Second generation of prototypes that was given to Harald + Mickey.
Unfortunately still not useful due to half-working touchscreen.
This is the bluetooth-enabled fork of GTA01
This is the first produced version of the bluetooth-enabled version.
This is the second produced version of the bluetooth-enabled version. It contains mainly GPS-related fixes.
This is the version that is shipped in Phase 0
Due to use of wrong GPIO/EINT pin, the PMU cannot wake-up the phone after suspend. This means, specifically, the following events can not bring the phone back from suspend-to-ram:
This is due to a design bug resulting in at least 30mA additional standby current, since we cannot properly switch off the power supply to the S3C2410 PLL's. There is nothing we can do to change this with post-production fixes. GTA01Bv4 will address this issue.
The GSM modem currently doesn't signalize a wakeup interrupt to the S3C2410 in case there's some noteworthy event, such as incoming call, loss of network, incoming SMS or the like.
This is a serious issue, but can be fixed with a GSM Modem Firmware update.
The local feedback sidetone (see [1]) is too loud. This will be addressed in a GSM firmware update
Due to an error in the production process, the factory-programmed NAND bad block information has been lost. This means that some blocks in the flash will wear out rapidly, which might become as bad as rendering the device unusable.
This is the version that will be shipped in Phase 1
This is what the GTA01Bv4 PCB looks like without the shielding cans, which will be fitted later.
This is the connector used to connect the Debug Board and possibly other hardware.
Connections are:
Information from [2].
Every hardware revision has its own u-boot image type. Thus, the bootloader has the revision hard-coded. The hardware revision is passed on to the kernel via the ATAG mechanism (ATAG_REVISION)
The kernel receives the ATAG_REVISION during bootup, and saves its contents in the "system_rev" global variable.
The kernel exports the system_rev variable in /proc/cpuinfo as "Revision :" line.
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