Search found 3 matches
- Sun Jan 05, 2020 5:20 am
- Forum: ESP32 Arduino
- Topic: my IRQ calls when a driver sends data via SPI
- Replies: 1
- Views: 2340
my IRQ calls when a driver sends data via SPI
Hello. I have a too strange problem. I have ILI9341 LCD. It works via SPI. ( library name is TFT_eSPI by Bodmer ) I use that pins TFT_MISO ( 5 ), TFT_MOSI( 19 ), TFT_SCLK ( 18 ), TFT_CS ( 23 ), TFT_DC ( 21 ), TFT_RST ( 22 ) it works perfectly and draws without problems. Also, I have five IRQ functio...
- Tue Dec 03, 2019 2:11 am
- Forum: ESP32 Arduino
- Topic: SPI driver corrupted GPIO39, GPIO36, GPIO34, GPIO35
- Replies: 2
- Views: 3812
Re: SPI driver corrupted GPIO39, GPIO36, GPIO34, GPIO35
I do not write to GPIO39, GPIO36, GPIO34, GPIO35!!!
I only read. Look the code.
I only read. Look the code.
- Mon Dec 02, 2019 9:58 am
- Forum: ESP32 Arduino
- Topic: SPI driver corrupted GPIO39, GPIO36, GPIO34, GPIO35
- Replies: 2
- Views: 3812
SPI driver corrupted GPIO39, GPIO36, GPIO34, GPIO35
I catch one problem when I use two cores. Every time I read the state of GPIO39, GPIO36, GPIO34, GPIO35 on the first Core of ESP32 and I draw a picture to LCD via SPI on the second core of ESP32 the value of GPIO39, GPIO36, GPIO34, GPIO35 is corrupted. ( this time nobody sends a signal to this GPIO ...