search

notro / rpi-firmware

Deprecated: Raspberry Pi kernel and firmware with support for FBTFT
Other
94 stars 32 forks source link

pitft touch-screen stops working after a day #4

Closed ABalanuta closed 10 years ago

ABalanuta commented 10 years ago

Hi,

I have a raspberry pi connected to some I2C sensors and GPIO relays and to a pitft, all controlled in pygame. When using the original drivers from the adafruit website the touch-screen presented the stmpe-ts bug problem in which it stopped respondig after some 5 minutes. I already tried installing the rpi-firmware on a clean rasbian installation witch worked fine for a day, after that the /proc/interrupts showed no activity. I also tried the prebuilt image witch shows the same symptoms. What could I be doing wrong?

Extra: dmesg /etc/modules /proc/interrupts lsmod

ABalanuta commented 10 years ago

I found out that the stmpe610 would lock out because of the relays. When the relays turn on (causes a vdroop) and an interrupt is sent from the touch-screen it would cause the lockout and only a power reset would resolve the issue. Solution use another power supply for the relays, or try to find a workaround.