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[参考译文] TDA4VM:J722S2 C7x 时钟频率发生变化

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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1458471/tda4vm-j722s2-c7x-clock-frequency-change

器件型号:TDA4VM

工具与软件:

尊敬的 TI 专家

我正在尝试更改 C7x 时钟频率。

目的是满足速度等级 J。对于 J 级、C7x 应为912.5 MHz。

#1。  已更改代码
    MCU_PLUS_SDK_j722s_09_02_00_41/source/drivers/bootloader/sdk/j722s/bootloader_soc.c soc
      
{ /* CSL_CORE_ID_C75SS0_0 */
.tisciProcId = SCICLIENT_PROC_ID_C7X256V0_C7XV_CORE_0,
.tisciDevId = TISCI_DEV_C7X256V0_C7XV_CORE_0,
.tisciClockId = TISCI_DEV_C7X256V0_C7XV_CORE_0_C7XV_CLK,
//.defaultClockHz = (uint32_t)(1000*1000000),
.defaultClockHz = (uint32_t)(912.5*1000000),   // default value is (uint32_t)(1000*1000000),
.coreName = "c75ss0-0",
},

{ /* CSL_CORE_ID_C75SS1_0 */
.tisciProcId = SCICLIENT_PROC_ID_C7X256V1_C7XV_CORE_0,
.tisciDevId = TISCI_DEV_C7X256V1_C7XV_CORE_0,
.tisciClockId = TISCI_DEV_C7X256V1_C7XV_CORE_0_C7XV_CLK,
//.defaultClockHz = (uint32_t)(1000*1000000),
.defaultClockHz = (uint32_t)(912.5*1000000),  // default value is (uint32_t)(1000*1000000),
.coreName = "c75ss1-0",
},

--------------------------------------------------------
 它没有工作。

--------------------------------------------------------

#2。 使用 k3conf

     k3conf 设置时钟208 0 912500000

  k3conf 设置时钟268 0 912500000

 

--------------------------------------------------------
 它没有工作。
 时钟参数无效时出错

--------------------------------------------------------

请提供指南来解决该问题。

谢谢你。

此致
Sukwon Kim