lazarman schrieb am Dienstag, 18. Mai 2021 um 23:02:58 UTC+2: > ... maybe TJF will reply.
Hi Bruce, beside 2x8k DRam and 12k SRam libpruio is using a further memory block called ERam (extension or external), find details at https://users.freebasic-portal.de/tjf/Projekte/libpruio/doc/html/ChaMemory.html#SecERam This block is 128k by default and can get configured up to 8MB = 4MS@16Bit. Using that block your task is easy: 1. Send the physical ERam adress to the PRU (DRam). 2. Fetch by PRU firmware ADC samples and store them in ERam (integer). 3. Read ERam from ARM side and compute (float). That's how the MM and RB mode in libpruio works (fetching samples from the internal TSC_ADC_SS). You're talking about 1MS/s. That's 200 PRU cycles per value. It sounds like a simple task. Regards -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/5df6d3ee-47ef-49de-8c3a-acf1cab4fcban%40googlegroups.com.
