Difference between revisions of "IB Tester Errata"
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(Created page with "* Module Name: IB Tester * Module Number: ELE_S58E_101 * Change From: ''Rev. C0'' Change To: ''Rev. C1'' * Change Request:'''ECO-070''' * Impacted Module # Rev. C0 …") |
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==Problem Description== | ==Problem Description== | ||
| − | AT89C55WD-33JC or PN=000317 installed at U6 is obsolete. The 24MHz version is still available. But the Crystal on board is 32MHz and has to be changed to 24MHz to work with the 24MHz flavour of the AT89C55. | + | AT89C55WD-33JC or PN=000317 installed at '''U6''' is obsolete. The 24MHz version is still available. But the Crystal on board at location '''X1''' is 32MHz and has to be changed to 24MHz to work with the 24MHz flavour of the AT89C55. |
It turns out that we have purchased and stored 24MHz parts (AT89C55WD-24JU) under PN=000317 since 2009 (PO10694, PO10029). Therefore, our 2009 build was assembled by a mix of 24MHz/32MHz parts and 32MHz CPUs. Affected parts are: | It turns out that we have purchased and stored 24MHz parts (AT89C55WD-24JU) under PN=000317 since 2009 (PO10694, PO10029). Therefore, our 2009 build was assembled by a mix of 24MHz/32MHz parts and 32MHz CPUs. Affected parts are: | ||
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==Change Description== | ==Change Description== | ||
| − | * Replace X1 with 002813 (24MHz oscillator) | + | * Replace '''X1''' with 002813 (24MHz oscillator) |
* Relabel the card as Rev. C1 | * Relabel the card as Rev. C1 | ||
Revision as of 16:33, 14 January 2015
- Module Name: IB Tester
- Module Number: ELE_S58E_101
- Change From: Rev. C0 Change To: Rev. C1
- Change Request:ECO-070
- Impacted Module # Rev. C0
- Requested by:MA Date: Apr. 16, 2014
Problem Description
AT89C55WD-33JC or PN=000317 installed at U6 is obsolete. The 24MHz version is still available. But the Crystal on board at location X1 is 32MHz and has to be changed to 24MHz to work with the 24MHz flavour of the AT89C55.
It turns out that we have purchased and stored 24MHz parts (AT89C55WD-24JU) under PN=000317 since 2009 (PO10694, PO10029). Therefore, our 2009 build was assembled by a mix of 24MHz/32MHz parts and 32MHz CPUs. Affected parts are: TIT-028 to TIT-037 (3 parts) and TIT-038 to TIT-042).
Change Description
- Replace X1 with 002813 (24MHz oscillator)
- Relabel the card as Rev. C1
