The Linux image has been built by following instructions from LinuxImage3.0 branch. No changes have been made in U-Boot or SCFW
- SCFW 494c97f3, SECO-FW d7523fe8, IMX-MKIMAGE dd023400, ATF a-20190
- U-Boot 2018.03-toradex_imx_v2018.03_4.14.78_1.0.0_ga-bringup+gc0ff506c39
SDK with demos, examples and instructional documentation has been generated from NXP website
Obviously those examples target different board and some modification are needed to be able to run them on Colibri eval board. The TPM examples required update in debug console only and I moved it to use UART_B peripheral as it suggested by Toradex.
The reason I have questioning SCFW impact is the Toradex’ SCFW version might prevent somehow NXP TPM examples from running as is. There might be some not obvious updates are needed beyond pins/UART redirection?
I run all examples from u-boot .
Repeated the tests with released version of the Linux
BuildInfo:
- SCFW cb6f758b, SECO-FW d7523fe8, IMX-MKIMAGE dd023400, ATF d6451cc
- U-Boot 2018.03-toradex_imx_v2018.03_4.14.78_1.0.0_ga-bringup+g25f68add54
with the same outcome: tmp input capture example doesn’t trigger interrupt.
What are the input signal parameters (electrical) required to trigger TPM interrupts (for edge detection)? Voltage, rising/failing time?