- Logical analyzer image showing 0x2501 with 128 clks
- 2220-128b.JPG (107.22 KiB) Viewed 2231 times
- Logical analyzer image showing 0x2220 with 128 clks
- 2501-128bits.JPG (120.75 KiB) Viewed 2231 times
Search found 3 matches
- Tue Nov 16, 2021 12:14 pm
- Forum: ESP-IDF
- Topic: External ADC ADS131A02 connected through SPI not working
- Replies: 2
- Views: 2372
Re: External ADC ADS131A02 connected through SPI not working
We also tried increasing the number of SCLKs from 96 to 128 cycles by providing the Txbuffer and RxBuffer with length 128bits. But the issue is still observed.
- Mon Nov 08, 2021 9:53 am
- Forum: ESP-IDF
- Topic: External ADC ADS131A02 connected through SPI not working
- Replies: 2
- Views: 2372
External ADC ADS131A02 connected through SPI not working
I am using ESP32-WROOMD with cpu clock speed of 240MHz. I have to read the external ADC i.e ADS131a02 from TI in asynchronous slave mode, 32-bit device word, Hamming code word validation off. I should read when i receive an interrupt on DRDY pin, I am using the ESP_INTR_FLAG_EDGE as interrupt flag, ...
- Thu Oct 07, 2021 9:04 am
- Forum: ESP-IDF
- Topic: Fast SPI communication with external ADC
- Replies: 8
- Views: 13486
Re: Fast SPI communication with external ADC
I have to read the external ADC i.e ADS131a02 from TI in asynchronous slave mode, 32-bit device word, Hamming code word validation off. I should read when i receive an interrupt on DRDY pin, I am using the ESP_INTR_FLAG_EDGE as interrupt flag, i will call a vTaskNotifyGiveFromISR() from the interrup...