SBC-T113 RGB/MIPI/LVDS/AMOLED/QSPI/MCU LCD

I designed two OLED screen sockets on the same adaptor board, one is 4.95" AMS495QA01 960x544 and the other is 5.5" E555HBM2 720x1280, which use the same OLED power chip.

static struct LCM_setting_table lcm_initialization_setting[] = {
{0xF0, 2, {0x5A, 0x5A}},
{0xF7, 1, {0x20}},
{0xF8, 20, {0x7F,0x7A,0x89,0x67,0x26,0x38,0x00,0x00,0x09,0x67,0x70,0x88,0x7A,0x76,0x05,0x09,0x23,0x23,0x23,0x00}},
{0xF4, 4, {0x33,0x42,0x00,0x08}},
{0xF5, 5, {0x00,0x06,0x26,0x35,0x03}},
{0xF9, 22, {0x01,0x93,0x93,0xaf,0xd3,0xda,0xcd,0xc5,0xcd,0xbe,0xe2,0xe3,0xdf,0xd6,0xca,0xd3,0xfa,0xed,0xe6,0x2f,0x00,0x2f}},
{0xB1, 3, {0x07,0x00,0x00}},
{0xF9, 0, {0x00}},
{0xB2, 4, {0x12,0x12,0x12,0x12}},
#endif

#if 1 //AMS495QA01
{0xf0, 2, {0x5a,0x5a}},
{0xf1, 2, {0x5a,0x5a}},

{0xb0, 1, {0x02}},
{0xf3, 1, {0x3b}},

{0xf4, 4, {0x33,0x42,0x00,0x08}},
{0xf5, 5, {0x00,0x06,0x26,0x35,0x03}},

{0xf6, 1, {0x02}},
{0xc6, 10, {0x0b,0x00,0x00,0x3c,0x00,0x22,0x00,0x00,0x00,0x00}},

{0xf7, 1, {0x20}},
{0xb2, 4, {0x12,0x12,0x12,0x12}},
{0xb1, 3, {0x07,0x00,0x10}},
{0xf8, 19, {0x7f,0x7a,0x89,0x67,0x26,0x38,0x00,0x00,0x09,0x67,0x70,0x88,0x7a,0x76,0x05,0x09,0x23,0x23,0x23}},

{0xb5, 21, {0xff,0xef,0x35,0x42,0x0d,0xd7,0xff,0x07,0xff,0xff,0xfd,0x00,0x01,0xff,0x05,0x12,0x0f,0xff,0xff,0xff,0xff}},
{0xb4, 1, {0x15}},
{0xb3, 1, {0x00}},
//Brightness Level15
{0xf9, 22, {0x01,0x9f,0x9f,0xbe,0xcf,0xd7,0xc9,0xc2,0xcb,0xbb,0xe1,0xe3,0xde,0xd6,0xd0,0xd3,0xfa,0xed,0xe6,0x2f,0x00,0x2f}},

{0xf9, 1, {0x00}},
/* Undocumented command */
{0x26, 1, {0x00}},
{0xb2, 1, {0x12}},

 {REGFLAG_DELAY, REGFLAG_DELAY, {10} },

//SLP OUT
{0x11,     0,     {0x00} },    // SLPOUT
{REGFLAG_DELAY, REGFLAG_DELAY, {200} },

//DISP ON
{0x29,     0,     {0x00} },    // DSPON
{REGFLAG_DELAY, REGFLAG_DELAY, {120} },

{REGFLAG_END_OF_TABLE, REGFLAG_END_OF_TABLE, {} }
};

Another oled is also OK. The PSV1000 screen AMS495QA01 960x544 is set with the highest contrast ratio. The power consumption of this screen is relatively low. It only needs two voltages of ELVDD ELVSS, which is the same as the E555HBM2 voltage value, and is driven by the same SGM8351A power chip.

AMS495QA01 video playback current is still low on a non-white background.

The 5.55" AMOLED of E555HBM2 720x1280 has been tested. Now the contrast ratio is set at 50%, and the power consumption of all white is still very large. The conversion board uses 3.3V. If the contrast ratio is 100%, it will lower 3.3V. The power consumption of the screen is recorded.

Compile the Audio mixer of lvgl demo. The GT9xx touch screen runs normally and displays normally. The UI uses the hardware rotation function of G2D and does not burden the CPU.

Completed the PCB design of the stamp hole core board.
Found a newly launched 32Gbits=4GBytes industrial temperature SD Nand, used it to load the Linux system, and integrated the RTL8211 1000M phy chip on the back of the PCB.

The drawings have been updated, the PCB has been processed, and the next step is to verify the new functions of T113-S4.
A core board was designed using KiCad.

The PCB has been manufactured and is ready for components to be soldered.

We upgraded the hardware to use T113-S4, which has built-in 256M DDR3 memory and added a 1GHz 64bit C906 RISC-V processor, which can run freertos/Nuttx.
We also upgraded the wifi module to the WIFI6 version of AIC8800D80, which greatly improved the wireless speed.

When the wifi6 signal quality is high, the speed of iperf3 -c is around 270M and the speed of iperf3 -s is around 300M.

Of course, a 512MB SD Nand storage chip is also installed for it, so that the system and programs can be solidified inside.