Can we do Parallel conversion together for primary and secondary cluster?

[Tej]

Hi, 

Can we perform synchronization parallel conversion together(at a time) for both primary and secondary clusters? For TC37x?

Primary- G0_CH0,G1_CH0,G2_CH0,G3_CH0

Secondary- G8_CH0,G9_CH0,G10_CH0,G11_CH0

[Di_W]

For synchronized conversion across primary and secondary clusters, it is also possible to use the standard master-slave method on some devices. For example TC33x and TC32x support such way too. Please refer to the appendix user manual for your device. Master-Slave method makes sure that synchronized ADC groups will start sampling at exactly the same time.

If master-slave is not supported between primary and secondary groups, then you can share a common hardware trigger (e.g. from GTM ) among any ADC groups. With such method, there could be 1 or 2 fADC (160MHz) clock time difference among these ADC groups, regarding start of sampling. As fADC is 160MHz, 2 clocks is 13ns. 

[Kunqiao_L · Accepted solution]

Hi Tej,

Please refer to the picture if you want to have ADC kernels conversion happens in the exactly time without any jitter：

If you accept some jitter, you could refer to our colleague second solution: use same common hardware trigger.

Thanks