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Choose nRF52 or 51?

JS

Hi, There are some older comments. Since situation is changing fast and I am un-sure if these comments are out-dated or not.

  1. ROM size. Some comments said 51 is small and the space left for user code (after factory stack) is 'small' How 'small' is it nowadays? Roughly how many line of C code space left?

  2. 'Less bug'. Some said 51 is older and less bug. How is it now?

  3. For multiple chips in 51 and 52 family, which specific part number chips, for 51 and 52, are recommended for newly started development work?

Long long time ago, when BT chips first came out, they have their fair share of bugs, naturally for any new chip. This time, I plan to choose a stable (less bug) one.

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    1. The nRF51 comes with a maximum of 256kB of flash. The nRF52 comes with a maximum of 512kB of flash. The latest SoftDevice for nRF51 (S130 v2) requires 104kB of flash. The latest SoftDevice for the nRF52 (S132 v3) requires 120kB of flash.
    2. For a anomalies have a look here for the nRF51, and here for the nRF52.
    3. If you only need BLE, go for nRF51822, if you need BLE+ANT go for nRF51422. For the nRF52, nRF52832 is the only option.
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    1. The nRF51 comes with a maximum of 256kB of flash. The nRF52 comes with a maximum of 512kB of flash. The latest SoftDevice for nRF51 (S130 v2) requires 104kB of flash. The latest SoftDevice for the nRF52 (S132 v3) requires 120kB of flash.
    2. For a anomalies have a look here for the nRF51, and here for the nRF52.
    3. If you only need BLE, go for nRF51822, if you need BLE+ANT go for nRF51422. For the nRF52, nRF52832 is the only option.
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