_frank

Hi, I solved the problem. I can now switch the UART speed with the LPC1769 in the App_Init function. But I advice to check the errata sheet and update MIOS32 accordingly. MIOS32_COM_SendBuffer(UART1,(u8 *)DISPL_MO_baud_rate_115200,(u16) sizeof(DISPL_MO_baud_rate_115200)); MIOS32_UART_BaudrateSet(UART1,115200); LPC_SC->PLL0CON = 0x00; LPC_SC->PLL0FEED = 0xAA; LPC_SC->PLL0FEED = 0x55; LPC_SC->PLL0CON = 0x03; LPC_SC->PLL0FEED = 0xAA; LPC_SC->PLL0FEED = 0x55; I forgot the second feed to program the PLLCON0 shadow registers. Anyway the PPL0 toggle is not im MIOS32, it should be. Best regards, Frank

Hi, I now can send strings and commands to the UART display. But there seems to be some a TX fifo overflow. The display is default 19200 baud, I want to use it at 115200 baud. Once the display is set to 115200 baud the setting is remembered next time it is powered. So I would like to use MIOS32 (with LPC1769)to start with 19200 baud and switch over to 115200 after sending a command to the display to run at 115200. It seems that the function MIOS32_UART_BaudrateSet(UART1,115200); doesn't do anything. I can continue to send message to the display set at 19200. Is the stuff of the errata sheet implemented in MIOS32? http://www.nxp.com/documents/errata_sheet/ES_LPC176X.pdf By the way, the errata sheet was updated januari 2012. Some ADC and GPIO stuff has been added. I now have put next code in, but I think disabling / enabling the PLL at this time is too late. The target does not respond anymore via Mios Studio. void APP_Init(void) { MIOS32_COM_SendBuffer(UART1,(u8 *)DISPL_MO_baud_rate_115200,(u16) sizeof(DISPL_MO_baud_rate_115200)); MIOS32_UART_BaudrateSet(UART1,115200); LPC_SC->PLL0CON = 0x00; LPC_SC->PLL0FEED = 0xAA; LPC_SC->PLL0FEED = 0x55; LPC_SC->PLL0CON = 0x03; Any idea where I can place the PLL toggle to change UART baud rate? Best regards, Frank

Hi there, I just build the MBHP_CORE_LPC17 board. I want to make a proto of a MIDI controlled guitar tube amplifier and/or WAH padel/compressor. Maybe I first start with something simple. HW: LPC1769 board I2C for controlling the tube amp Matrix Orbital UART graphical display with key (GLK19264-7T-1U-WB) I have the MIOS toolchain running. I would like to use Mios Studio and USB i/f to monitor received MIDI in1 messages & sending MIDI messages to the guitar amp. I am quite HW oriented; I have some SW questions how to go further. Which MIOS32 application do you suggest to include I2C functionallity? Are there any MIOS32 examples with I2C? Is there an example with UART i/f to the display? Is there an example with UART i/f from a keypad? Is there an example that shows how to parse the MIDI messages and trigger an I2C command? Any suggestions how to get the I2c/UART code running in MIOS32 Thanks, Frank