Hi @AhmedMobarez,
No worries, feel free to reach out anytime you want.
Best Regards,
Hiago.
Hello Hiago @hfranco.tx ,
sorry for commenting on an old thread, let me know if I should post this in a new thread, I just have a small question, how did you figure out that pin 35 and 36 on the Ixora could be used for UART and only from the M4 core 1 and not 0 ?
thank you
Hi @AhmedMobarez,
since it’s a simple question related to the topic, we can discuss it in this thread.
I checked the pin_mux.h files inside the “Hello Wolrd” demo. Here is the diff between pin_mx.h from core0 and core1:
--- cm4_core0/pin_mux.h 2022-08-22 11:04:15.000000000 -0300
+++ cm4_core1/pin_mux.h 2022-08-22 11:04:15.000000000 -0300
@@ -14,23 +14,23 @@
* Definitions
**********************************************************************************************************************/
-/* M40_I2C0_SCL (number AM44), FTDI_M40_UART0_RX */
+/* UART0_RTS_B (number AU45), BB_UART2_RX/J20A[28] */
/* Routed pin properties */
-#define BOARD_INITPINS_FTDI_M40_UART0_RX_PERIPHERAL M40__UART0 /*!< Peripheral name */
-#define BOARD_INITPINS_FTDI_M40_UART0_RX_SIGNAL uart_rx /*!< Signal name */
-#define BOARD_INITPINS_FTDI_M40_UART0_RX_PIN_NAME M40_I2C0_SCL /*!< Routed pin name */
-#define BOARD_INITPINS_FTDI_M40_UART0_RX_PIN_FUNCTION_ID SC_P_M40_I2C0_SCL /*!< Pin function id */
-#define BOARD_INITPINS_FTDI_M40_UART0_RX_LABEL "FTDI_M40_UART0_RX" /*!< Label */
-#define BOARD_INITPINS_FTDI_M40_UART0_RX_NAME "FTDI_M40_UART0_RX" /*!< Identifier */
+#define BOARD_INITPINS_BB_UART2_RX_PERIPHERAL DMA__UART2 /*!< Peripheral name */
+#define BOARD_INITPINS_BB_UART2_RX_SIGNAL uart_rx /*!< Signal name */
+#define BOARD_INITPINS_BB_UART2_RX_PIN_NAME UART0_RTS_B /*!< Routed pin name */
+#define BOARD_INITPINS_BB_UART2_RX_PIN_FUNCTION_ID SC_P_UART0_RTS_B /*!< Pin function id */
+#define BOARD_INITPINS_BB_UART2_RX_LABEL "BB_UART2_RX/J20A[28]" /*!< Label */
+#define BOARD_INITPINS_BB_UART2_RX_NAME "BB_UART2_RX" /*!< Identifier */
-/* M40_I2C0_SDA (number AU51), FTDI_M40_UART0_TX */
+/* UART0_CTS_B (number AW49), BB_UART2_TX/J20A[29] */
/* Routed pin properties */
-#define BOARD_INITPINS_FTDI_M40_UART0_TX_PERIPHERAL M40__UART0 /*!< Peripheral name */
-#define BOARD_INITPINS_FTDI_M40_UART0_TX_SIGNAL uart_tx /*!< Signal name */
-#define BOARD_INITPINS_FTDI_M40_UART0_TX_PIN_NAME M40_I2C0_SDA /*!< Routed pin name */
-#define BOARD_INITPINS_FTDI_M40_UART0_TX_PIN_FUNCTION_ID SC_P_M40_I2C0_SDA /*!< Pin function id */
-#define BOARD_INITPINS_FTDI_M40_UART0_TX_LABEL "FTDI_M40_UART0_TX" /*!< Label */
-#define BOARD_INITPINS_FTDI_M40_UART0_TX_NAME "FTDI_M40_UART0_TX" /*!< Identifier */
+#define BOARD_INITPINS_BB_UART2_TX_PERIPHERAL DMA__UART2 /*!< Peripheral name */
+#define BOARD_INITPINS_BB_UART2_TX_SIGNAL uart_tx /*!< Signal name */
+#define BOARD_INITPINS_BB_UART2_TX_PIN_NAME UART0_CTS_B /*!< Routed pin name */
+#define BOARD_INITPINS_BB_UART2_TX_PIN_FUNCTION_ID SC_P_UART0_CTS_B /*!< Pin function id */
+#define BOARD_INITPINS_BB_UART2_TX_LABEL "BB_UART2_TX/J20A[29]" /*!< Label */
+#define BOARD_INITPINS_BB_UART2_TX_NAME "BB_UART2_TX" /*!< Identifier */
/*!
* @addtogroup pin_mux
@@ -57,7 +57,7 @@
* @param ipc scfw ipchandle.
*
*/
-void BOARD_InitPins(sc_ipc_t ipc); /*!< Function assigned for the core: Cortex-M4F[cm4_core0] */
+void BOARD_InitPins(sc_ipc_t ipc); /*!< Function assigned for the core: Cortex-M4F[cm4_core1] */
Now you can go to the Apalis iMX8 datasheet and look for pins M40_I2C0_SCL (core 0) and UART0_RTS_B (core 1). On the Ixora board, only the pin UART0_RTS_B is available in the header pin ( you can check the Ixora Datasheet as well), that’s how I found which core was available for me.
Feel free to ask any questions you might have.
Best Regards,
Hiago.
1 Like
Hi hiago @hfranco.tx ,
I have tried this solution and it does work for debugging serial core 1 on the ixora board. my question is whether for core 0 can’t be treated the same way? i mean core 0 is also debugged with the same pins as core 1 by equating the pin names in pin_mux.h
can the process not be that simple or how? or is there another way so that I can debug serial core 0 on the ixora board?
thank you
Hi @Azkaaa
Can I ask you to open a new thread with your issue?
This topic is already marked as solved so we won’t be able to track your status.
Hi allan,
thanks for the reply, I have done to open a new topic. i apologize in advance for my ignorance.
Best Regards,
Azka