As a small team, we have to find silicons from retell market. Sometimes even the trader can not promise its source and batch. Here is a small list of nRF51822 available from the market.
nRF51822-QFAAC0-1311AH
nRF51822-QFAAC0-1322AY
nRF51822-QFABA0-1326AW
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nRF51822-QFAAG3-1438AU
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nRF51822-QFAAH0-1517DF
nRF51822-QFAAH0-1512BX
nRF51822-QFAAH0-1527HU
nRF51822-QFAAH0-1544MG
nRF51822-QFACA1-1506AJ
nRF51822-QFAAF1-1621DF ES or nRF51422 ?
nRF52832-QFAA
The 1st generation (C0) silicon is about 15% cheaper than 3rd generation (Hx).
For sure, we want to get latest version, but my development kit is quite old anyway. I compare the source folder for different SDK, v4.4/6.1/8.0...... Quite a lot of changes. For example, there are no UART applications and DFU in v4.4.
Does anyone try to backport these applications into older silicon ? Or we should simply drop this idea since it doesn't worth to try to load new SD/SDK...
