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Task #3384

closed

Allocation of max DMA memory

Task #3384: Allocation of max DMA memory

Added by Thomas Joseph about 2 months ago. Updated 21 days ago.

Status:
Closed
Priority:
Normal
Assignee:
Mohan Kashyap
Target version:
RHMS-ISTRAC
Start date:
16/03/2026
Due date:
20/03/2026
% Done:

100%

Estimated time:
16:00 h
Spent time:
32:00 h

Description

Reserve max. memory for acquisition and evaluate

Updated by Mohan Kashyap about 2 months ago Actions
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 #1

  • Due date set to 20/03/2026
  • Status changed from New to In Progress
  • Estimated time set to 16:00 h

Updated by Mohan Kashyap about 1 month ago Actions
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 #2

  • % Done changed from 0 to 50

The Maximum DMA Memory could be configured was for 40K Samples.

i.e 40000 * 12 = 480000 Bytes = 468KB

The Acquisition Parameters should not exceed 40K Samples

Updated by Thomas Joseph about 1 month ago Actions
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 #3

  • Target version set to RHMS-ISTRAC

Updated by Mohan Kashyap about 1 month ago Actions
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 #4

  • Status changed from In Progress to Resolved

The DMA Memory has been configured to 96MB

The device is stable at 80KSPS for 1 sec duration.

/* Place in special section for linker */
attribute((section(".static_buffer")))
adc_sample_data_t data_sine_sample[8 * 1024 * 1024];

Updated by Mohan Kashyap 21 days ago Actions
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 #5

  • Status changed from Resolved to Closed
  • % Done changed from 50 to 100
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