Hello,

Here's some feedback from the author of BRT_AN_041 FT90x-MQTT-Application:

You would still need networking support and some form of low level OS.

mbed and FreeRTOS are providing much the same support.

mbed has support for Ethernet and other stuff but you’d have to port it to FT900.

The advantage is that we have already implemented FreeRTOS, lwIP and mbedTLS in that example.

Maybe other users in the community have more input?

Best Regards,

BRT Community

Hello,

A 1 min erase time for a 16MB flash does seem rather long.

Which EVE library are you using? and can I see the code you are using to call the erase?


Best Regards,
BRT Community

Hello,

Can you provide an example of the gradient you are seeing these issues on?
CMD_GRADIENT will calculate a blend from one colour to another, the use of 18bit RGB may effect whats output on the panel, along with the algorithm used to calculate the blend. You may find bitmaps a better option to provide a background gradient from tow colours which closely match each other.


Best Regards,
BRT Community

Hello,

You would need to look up the datasheet for the LCD panel you are using to determine its pinout.
You can then cross reference this with the FT5206 datasheet to establish which connections need to be made.

Best Regards,
BRT Community

Hello,

Yes Windows Update will be searched for the driver which can cause delays.

However please ‘restore the bootloader’ using the UMFTPD2A which should resolve the issue.

Best Regards,
FTDI Community

Hello,

Which MCU are you using? you mentioned starting with Riverdis flash examples, have you been porting the examples for your given MCU platform?

Below is a link to the updated BRT samples for the BT81x series. In particular set10 deals with the new flash functionality:
SampleApp EVE_Samples_v1.1.0_RC_28062019.zip
These have been tested on the VM816C50A-D board.


Best Regards,
BRT Community

Hello,

Can you try flushing the co-pro buffer and double checking the REG_CMD_READ and REG_CMD_WRITE pointers are equal before issuing the flash read command as per the below example?

bool_t AppFlashErase(void)
{
/* Erase the flash */
uint8_t status = Gpu_Hal_Rd8(g_phost, REG_FLASH_STATUS);
#ifdef _DEBUG
printf("\nFlash status %d (%s)\n", status, flash_status[status]);
#endif
if (status == FLASH_STATUS_DETACHED)
{
Gpu_CoCmd_FlashAttach(g_phost);
App_Flush_Co_Buffer(g_phost);
Gpu_Hal_WaitCmdfifo_empty(g_phost);
status = Gpu_Hal_Rd8(g_phost, REG_FLASH_STATUS);
#ifdef _DEBUG
printf("Flash status %d (%s)\n", status, flash_status[status]);
#endif
if (FLASH_STATUS_BASIC != status)
{
printf("Error, Flash is not able to attach\n");
return FALSE;
}
}
printf("Erasing Flash...\n");
Gpu_CoCmd_FlashErase(g_phost);
App_Flush_Co_Buffer(g_phost);
Gpu_Hal_WaitCmdfifo_empty(g_phost);
/* Check first 4KB */
uint8_t *p_flashbuf = (uint8_t *)calloc(4 * 1024, sizeof(uint8_t));
Gpu_CoCmd_FlashHelper_Read(g_phost, 0, 0, 4 * 1024, p_flashbuf);
for (int i = 0; i < 4 * 1024; i++)
{
if (*(p_flashbuf++) != 0xFF)
{
return FALSE;
}
}
return TRUE;
}
Best Regards,
BRT Communnity

Hello,

Would it be possible to see your code?
And can you let me know which EVE library you are using?

Best Regards,
BRT Community