diff options
Diffstat (limited to 'nuttx/configs/stm3240g-eval/README.txt')
-rwxr-xr-x | nuttx/configs/stm3240g-eval/README.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/nuttx/configs/stm3240g-eval/README.txt b/nuttx/configs/stm3240g-eval/README.txt index bf5959871..0717f51c7 100755 --- a/nuttx/configs/stm3240g-eval/README.txt +++ b/nuttx/configs/stm3240g-eval/README.txt @@ -18,6 +18,7 @@ Contents - CAN - FPU - FSMC SRAM + - I/O Exanders - STM3240G-EVAL-specific Configuration Options - Configurations @@ -496,6 +497,37 @@ There are 4 possible SRAM configurations: CONFIG_MM_REGIONS == 3 CONFIG_STM32_FSMC_SRAM defined CONFIG_STM32_CCMEXCLUDE NOT defined +I/O Exanders +============ + +The STM3240G-EVAL has two STMPE11QTR I/O expanders on board both connected to +the STM32 via I2C1. They share a common interrupt line: PI2. + +STMPE11 U24, I2C address 0x41 (7-bit) +------ ---- ---------------- -------------------------------------------- +STPE11 PIN BOARD SIGNAL BOARD CONNECTION +------ ---- ---------------- -------------------------------------------- + Y- TouchScreen_Y- LCD Connector XL + X- TouchScreen_X- LCD Connector XR + Y+ TouchScreen_Y+ LCD Connector XD + X+ TouchScreen_X+ LCD Connector XU + IN3 EXP_IO9 + IN2 EXP_IO10 + IN1 EXP_IO11 + IN0 EXP_IO12 + +STMPE11 U29, I2C address 0x44 (7-bit) +------ ---- ---------------- -------------------------------------------- +STPE11 PIN BOARD SIGNAL BOARD CONNECTION +------ ---- ---------------- -------------------------------------------- + Y- EXP_IO1 + X- EXP_IO2 + Y+ EXP_IO3 + X+ EXP_IO4 + IN3 EXP_IO5 + IN2 EXP_IO6 + IN1 EXP_IO7 + IN0 EXP_IO8 STM3240G-EVAL-specific Configuration Options ============================================ |