Application : AI Robot , AI Watch
EVB : AMB82-mini
Peripheral : GC9A01 (a round TFTLCD)
Library : GC9A01_LTSM
Symptoms : Failed to compile all examples.
Thanks for posting!
For documentation, SDK resources, FAQs, and community guidelines, please visit: here
For commercial users, if you would like to have dedicated technical support or to connect with us, please fill in the Private User Form
Happy building with Ameba!
感謝您的分享！
如需查閱技術文件、SDK 資源、常見問題及社群指南，請參考: 這裡
若您是商業用戶，希望獲得專屬技術支援或與我們聯繫，請填寫 Private User Form (商業用戶表單)
祝您使用 Ameba 開發順利！
Hi @rkuo2000 ,
Please try again with the updated patch for Ameba SPI library. Thank you.
SPI_patch_030926.zip (4.0 KB)
example code : GC9A01_HELLO_WORLD.ino
compiled OK, but failed to run (with/without connecting GC9A01)
== Rtl8735b IoT Platform ==
[Normal mode]
BootFromNORFlash
[Start Boot ROM…]
=== Load PARTBL ===
=== Load Done ===
=== Load ISP_IQ ===
[fcs chk pass]
ISP_IQ @ 0x8461080, 0x2ff80, 0x0
mfcs_data version 0x00010001
fcs_data version 0x00010101
=== Process ISP_IQ ===
=== Load Done ===
=== Load BL ===
[Image Start Table @ 0x18200]
=== Load Done ===
== Boot Loader ==
Aug 31 2026:12:40:36
=== Load FCS Para ===
=== Load Done ===
[crc pass]
=== Load ISP_IQ Sensor ===
ISP_IQ @ 0x8461080, 0x2ff80
=== Process ISP_IQ ===
=== Load Done ===
=== Load FW1 ===
FW_ISP_IQ @ 0x8061080, 0x31f80
=== Process FW_ISP_IQ ===
DRAM_TYPE is DDR2 128MB.
ddr_freq = 533
VOE flash @ 0x8093080, 0x82f80
FCS KM_status 0x00002081 err 0x0000200a
Wait KM fcs done 0 us
FCS TM_status 0x003f0000
store fcs data for application
It don’t do the sensor initial process
RAM TM_STATUS 0x00bf1208 err 0x00001208
read fcs_status 0x000000bf
read fcs_status 0x000000bf
=== Process VOE IMG ===
[Image Start Table @ 0x20106200]
RAM Load @ 0x8116100->0x20106200, 0x572c
DDR Load @ 0x811c080->0x70100000, 0x1a4b8
=== FW Load Done ===
Boot Loader <==
== RAM Start ==
Build @ 12:30:26, Aug 31 2026
$8735b>
[MISC Err]Pin 4[4] is conflicted
[MISC Err]It’s configured as GPIO now.
[MISC Err]It’s using by peripheral F0000000
[SSI Err]PIN 84 cannot be registered.
[SSI Err][31mspi_format(): SPI 0 init fails.
[0m
[SSI Err]Please initialize SPI format first!
[SSI Err]Please initialize SPI format first!
I fixed it without SPI_SS, replaced as follows :
#define TFT_DC 4
#define TFT_CS 5
Looking forward to the fix for using SPI_SS !!!
Here’s the fixed libraries .zip :
GC9A01_LTSM (revised examples)
display16_LTSM (revised display16_graphics_LTSM.hpp)
examples/FRAME_BUFFER failed to compiled (240x240x2 = 115,200 bytes required)